7 plus twice a number.

Answers

Answer 1

Answer:

7+4

Step-by-step explanation:

Answer 2

Answer:

7 + 2x

Step-by-step explanation:


Related Questions

Points C and D are on a number line (not shown).
The coordinate of point C is -16 and the coordi-
nate of point D is 14. Point E is a point on line
segment CD. If the distance from point E to point
C is 1/4 the distance from point E to point D, what is
the coordinate of point E?

Answers

Answer:   -10

=============================================================

Explanation:

I recommend drawing out the number line. Plot -16 and 14 on it.

Either count out the spaces, or subtract and apply absolute value, to find the distance from -16 to 14 is exactly 30 spaces.

----------

Or you can think of it like this:

From -16 to 0 is 16 spaces

From 0 to 14 is another 14 spaces

That's 16+14 = 30 spaces total.

----------

In short, segment CD is 30 units long.

Point E is somewhere on segment CD.

x = distance from E to C

y = distance from E to D

x+y = EC+ED = CD = 30

x+y = 30

y = 30-x

We're told the distance from E to C is 1/4 the distance from E to D, so,

x = (1/4)*y

x = (1/4)*(30-x)

x = 0.25*(30-x)

x = 7.5 - 0.25x

x+0.25x = 7.5

1.25x = 7.5

x = (7.5)/(1.25)

x = 6

The distance from E to C is 6 units.

This means we'll add 6 units to the location of point C to find out where to place E

E = C+6 = -16+6 = -10 is the final answer

40) Jose and Eugene each improved their yards by planting rose bushes and geraniums. They bought their supplies from the same store. Jose spent $70 on 7 rose bushes and 4 geraniums. Eugene spent $50 on 6 rose bushes and 2 geraniums. Find the cost of one rose bush and the cost of one geranium

A) rose bush: $7, geranium: $9
B) rose bush: $6, geranium: $7
C) rose bush: $7, geranium: $5
D) rose bush: $8, geranium: $11​

Answers

Answer:

I need points bro

Step-by-step explanation:

Answer: B) rose bush: $6, geranium $7

Step-by-step explanation:

Jose spent $70 on 7 rose bushes and 4 geraniums.

( 7 x $6 = $42 ) ( 4 x $7 =  $28 )

$42+$28= $70

Eugene spent $50 on 6 rose bushes and 2 geraniums.

( 6 x $6 = $36 ) ( 2 x $7 = $14 )

36+14 =50

8
Find the slope of the line that passes through the points (10,8) and (6, 14).
Write your answer as a simplified fraction.

Answers

3

-2
because the answer is 6 over -4 and it simplified is that answer.

URGENT
Factor.
4m² - 52m + 88

Answers

Answer:

[tex]4(m - 11)(m - 2)[/tex]

Step-by-step explanation:

[tex]4 {m}^{2} - 52m + 88[/tex]

[tex] = > 4( {m}^{2} - 13m + 22)[/tex]

[tex] = > 4( {m}^{2} - 11m - 2m + 22)[/tex]

[tex] = > 4(m(m - 11) - 2(m - 11))[/tex]

[tex] = > 4(m - 11)(m - 2)[/tex]

Point slope form.
Y-4=

Answers

Y=1/5x+13/5 and the slop is 1/5

Which linear function has the same y-intercept as the one that is represented by the graph?
Oy=2x-4
Oy=2x-3.
Oy=2x+3
Oy=2x+4

Answers

Answer:

Oy=2x+3

Step-by-step explanation:

The function that has the {y} - intercept as that of the function graphed is y = 2x + 3

What is function?

A function is a relation between a dependent and independent variable. We can write the examples of functions as -

y = f(x) = ax + b

y = f(x, y, z) = ax + by + cz

Given is to find the linear function that has the same y-intercept as the one that is represented by the graph.

The function graphed has the {y} - intercept of 3.

For the functions given -

Functions              {y} - intercept

y=2x-4                        -4

y=2x-3.                       -3

y=2x+3                        3

y=2x+4                        4

So, the function that has the {y} - intercept of 3 is y = 2x + 3.

Therefore, the function that has the {y} - intercept as that of the function graphed is y = 2x + 3.

To solve more questions on functions, visit the link below-

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the difference between eight and twice a number x is four

Answers

Answer:

[tex]x=2[/tex]

Step-by-step explanation:

[tex]Let\ the\ number\ be\ x\\Hence,\\8-2x=4\\-2x=4-8\\-2x=-4\\x=\frac{-4}{-2} \\x=\frac{4}{2} \\x=2[/tex]

Answer:

Yes

Step-by-step explanation:

2 x 4 = 8

8 / 4 = 2

I need help ASAP

Mateo earns a yearly salary of 40,000. Rico earns a yearly salary of 51,000. Mateo will receive a salary increase of 3,500 per year, and Rico will receive a salary increase of 2,800 per year

Which equation can be used to find n, the number of years it will take Mateo to earn the same salary as Rico?

A: 40,000+3,500n=51,000+ 2,800

B: 40,000+3,500n=51,000n+ 2,800n

C: 40,000n+3,500=51,000n+ 2,800

D: 40,000+3,500n=51,000n+ 2,800

Answers

Answer is 40,000+3,500n = 51,000 +2,800n I think u didn’t put the n in A so A?

On the way to work Stan can drive his 60-mile commute in 1 hour. However, because of traffic, it takes 3 hours to get home. What is his average speed for the round trip?
A. 30 miles per hour
B. 20 miles per hour
C. 60 miles per hour
D. 40 miles per hour

Answers

A. 20 miles per hour

a pyramid is made of metal balls. the lowest layer consists of 4 by 4 balls ,the next layers of 3 by 3 and 2 by 2 and one ball at the top. every two balls that touch each other are connected with screw. how many screws are used to build this pyramid?

Answers

Answer:

total answer is a 34.

Step-by-step explanation:

4444

4444

4444

4444=18

333

333

333=12

22

22=4

Total is 34.

Answer:

answer is 96

Step-by-step explanation:

MARK ME AS THE BRAINLIEST

please help me asap​

Answers

to subtract fractions, we need an lcd( lowest common denominator)

8. the lcd is 42 because it’s the smallest number that 6 and 7 are both factors of. the lcd is the bottom of the fraction

to make the denominator of (4/7) 42, we will multiply the top and bottom by 6 and we get (24/42)

to make the denominator of (3/6) 42, we will multiply the top and bottom by 7 and we get (21/42)

these two numbers now have the same denominator so we subtract them

24/42 - 21/42 = 3/42 which simplifies to 1/14

9. since these fractions already have a common denominator, we will make them mixed fractions

-5(2/7) as a mixed fraction. first multiply 5*7 which is 35. now add 2 which is 37. our mixed fraction is -37/7

-1(5/7) as a mixed fraction. multiple 1*7 which is 7. now add 5 which is 12. our mixed fraction is -12/7

now subtract (-37/7) - (12/7) and we get -49/7 which simplifies to -7

Anna wants to purchase advertising space in the school newspaper. Each square inch of advertisement space sells for $3.00. She wants to purchase a rectangular space with length and width in the ratio 3:2 and she has up to $50.00 to spend. What are the dimensions of the largest advertisement she can afford to purchase?


(please explain how you got the answer and show me some work!!)

Answers

Answer:

The largest advertisement she can afford has dimensions of 5 in x 10/3 in

Step-by-step explanation:

Assume the dimensions of the advertisement are L and W.

The area of the advertisement is:

A = L.W

The ratio length/width is 3:2, thus the proportion is:

[tex]\displaystyle \frac{L}{W}=\frac{3}{2}[/tex]

Thus:

[tex]\displaystyle L=\frac{3}{2}W[/tex]

The area is:

[tex]\displaystyle A=\frac{3}{2}W^2[/tex]

Since the square inch of advertisement space sells for $3, the cost for Anna to purchase it is:

[tex]\displaystyle C=3\cdot\frac{3}{2}W^2[/tex]

Simplifying:

[tex]\displaystyle C=\frac{9}{2}W^2[/tex]

This cost can be a maximum of $50, thus:

[tex]\displaystyle \frac{9}{2}W^2=50[/tex]

Multiplying by 2:

[tex]9W^2=100[/tex]

Solving for W:

[tex]\displaystyle W=\sqrt{\frac{100}{9}}=\frac{10}{3}[/tex]

[tex]\displaystyle W=\frac{10}{3}[/tex]

And

[tex]\displaystyle L=\frac{3}{2}\cdot \frac{10}{3}[/tex]

L = 5

Thus the largest advertisement she can afford has dimensions of 5 in x 10/3 in

What would be the result if a was increased by 25 percent

Answers

Answer: formula - (x/4)+x

Step-by-step explanation:

Since there are no numbers, here is just the formula and what it means :)

(x/4)+x

(btw x is whatever your number is)

so what you need to do first is to divide your number by 4 because 25% is 1/4 of 100%

and then add that number that you just got to your number.

Its a little confusing to say out in words, so here is an example using 24

24/4=6

24+6=30

and heres another example using 50

50/4=12.5

50+12.5=62.5

I hope this helped! <3

The equation 20 + 5x = y represents the amount of money in a bank
account, y, after x weeks of deposits. Which equation represents the
same equation, solved for x

Answers

Answer:

B

Step-by-step explanation:

Please help algebra work needs to be shown please help

Answers

Answer: 1) x=6.92 or rounded: 6.9

take a look at the image

Joyce saved $130 on an item that was 25
%
off. What was the original price?

Answers

Answer:

$520

Step-by-step explanation:

If it was 25% off  and she saved 130

then 130 is the 25%

130*4 = 520

The answer is 520 bro

Pleaseee help ASAP it’s due in 10 minutes

Answers

Answer:

y= 3x + 6

Step-by-step explanation:

y = mx + b

m = slope

b= y intercept

so the equation is y= 3x + 6

Hope this helps, if so please mark brainlist, peace and love

help please and hurry!

Answers

The answer would be b

Simplify this expression: -5(c-3d + 1)

Answers

Answer:

-5c + 15d - 5

Step-by-step explanation:

1. Distribute the -5 from outside the paranthesis to the inside.

2. Keep in mind the negative signs when you're distributing.

Answer:

-5c + 15d - 5

Step-by-step explanation:

= (-5)(c + -3d + 1)

= (-5)(c) + (-5)(-3d) + (-5)(1)

= -5c + 15d - 5

Find the slope of the line y=1/3x+3/2

Answers

Answer:

1/3

Step-by-step explanation:

The slope is 1/3

Answer:

slope:1/3

y intercept(just an extra!):(0,-3)

Step-by-step explanation:

Hope I could help! Stay safe and drink water<3

Joan Arlington has twice as much money invested at 5% simple annual interest as she does at 4%. If her yearly income from the two investments is $154, how much does she have at each rate? equation

Answers

Answer:

1100

Step-by-step explanation:

Use the following cell phone airport data speeds (Mbps) from a particular network. Find P40
0.4
1.1
0.2
0.6
1.7
3.5
10.7
0.2
0.6
1.9
4.4
10.8
0.3
0.7
2.1
5.2
11.1
0.3
0.7
2.5
6.8
12.2
0.3
0.8
2.6
7.8
12.5
0.3
0.9
2.6
8.8
14.6
0.4
0.4
1.1
2.8
2.9
8.8
14.6
9.8
15.4
0.40
1.3
1.4
3.2
3.4
9.9
10.1
15.5
26.7


P40= ___ Mbps

Answers

The 40th percentile is (1.6 + 1.6) / 2 = 1.6

What is percentile ?

In statistics, a k th percentile is a score below which a given percentage k of scores in its frequency distribution falls or a score at or below which a given percentage falls.

The data are in ascending order.

Compute the position of the pth percentile (index i):

i = (p/100)*n

i = (40/100)*50

i = 20

The index i is an integer ⇒ the 40th percentile is the average of the values in the 19th and 20th positions (1.6 and 1.6 respectively).

Therefore, the 40th percentile is (1.6 + 1.6) / 2 = 1.6

P40=1.6 Mbps

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You have 72 grams of a radioactive kind of actinium. If its half-life is 6 hours, how much will
be left after 12 hours

Answers

Answer:

There will be 18 grams left after 12 hours.

Step-by-step explanation:

Half-life is the amount of time it take for a cell to turn from one condition to another.

To find the amount of grams for the first 6 hours.

72 ÷ 2= 36

Now, since 6 x 2 = 12, we need to divide 36 by 2 to find the next half-life.

36 ÷ 2 = 18

Therefore, there will be 18 grams left after 12 hours.

Hope this helps! :D


NEED HELP ASAP

WILL GIVE BRAINLIEST
(DO NOT JUST TAKE POINTS OR I WILL REPORT YOU!!)

Matt owes his sister $300. He mows lawn’s after school and on the weekends. He charges $30 a lawn, but pays his friend Steven $10 to help. Matt plans to repair his sister with half of what he earns on each lawn mowed. Which statements are correct?

A) Matt has to mow 15 lawns to pay back $100 to his sister

B) The explicit expression for the situation is 300+10x

C) Matt will have to mow 30 lawns to pay $300 back to his sister

D) Matt reduces his debt to his sister by $10 each lawn he mows

E) This situation can be expressed recursively as Sn=Sn-1-10,S0=300

Answers

Answer:

it is c and d

Step-by-step explanation:

if he pays his friend 10 out of the 30 he has 20 left, then he repays his sister half of what get gets from each lawn, therfore he gives her 10 each lawn, the rest is self explanitory

i need help with some questions

Answers

Answer:

I will try doing it

Step-by-step explanation:

which are the questions

yes i is my mom coc and her mom and dad are you going to be here in church at thanksgiving and north park in the north park for a couple hours i

Evaluate each combination.
The general manager of a fast food restaurant chain must select 6 restaurants from 11
for a promotional program. How many different ways can this be done?
O 332,640
O 462
O 66
O 720

Answers

There are 462 different ways can be done for a promotional program.

Combinations are the way of selecting the objects or numbers from a group of objects or collection, in such a way that the order of the objects does not matter.

Selection of menu, food, clothes, subjects, the team are examples of combinations.

The formula for combinations is: nCr = n!/[r! (n-r)!]

nCr represents the number of combinations from “n” objects taken “r” at a time.

given that

select 6 restaurants from 11.

nCr = n!/[r! (n-r)!]

we are looking at a Combination of 11 things takes 6 at a time, or 11C6

11C6=11!/(6!5!)

11C6=11×10×9×8×7 / 5×4×3×2×1.

11C6=55440 / 120

11C6=462

Thus, there are 462 different ways in which the manager can choose 6 restaurants at a time out of 11.

To learn more about Combination

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Water freezes at 0 degrees Celsius, which is the same as 32 degrees Fahrenheit. Also water boils at 100 degrees Celsius, which is the same as 212 degrees Fahrenheit. (Use fractions in your answers.)
(a) Use the freezing and boiling points of water to find a formula expressing Celsius temperature C as a linear function of the Fahrenheit temperature F.



I saw the same question but it kept saying the answers were wrong, so

Answers

The required equation which represents the expression of Celsius temperature as a linear function of the Fahrenheit temperature is; C = (9/5)F - 57.6.

What is the linear equation expressing the Celsius temperature in terms of the Fahrenheit?

It follows from the task content that the linear equation which relates both the Celsius and Fahrenheit temperature is to be determined.

On this note, the two points which can be inferred to describe the linear relationship are;

(32, 0) and (212, 100)

Hence, the slope of the linear equation;

m = (C2 - C1)/(F2 - F1)

m = (212 - 32)/(100 - 0)

m = 180/100

m = 9/5

Hence, from the point-slope equation form; (y-y1) = m (x -x1).

We have; (C - 0) = (9/5) (F - 32)

C = (9/5)F - 57.6

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guys i need help asap someone good with geomtry???

Answers

Answer:

[tex]CF<BC<BF[/tex]

Step-by-step explanation:

[tex]As\ we\ know\ that,\\The\ longest\ side\ in\ a\ triangle\ is\ the\ side\ opposite\ to\ the\ largest\ angle.\\Here\ in\ \triangle BCF,\\\angle B=52\\\angle C=65\\\angle F=63 [Angle\ Sum\ Property\ Of\ A\ Triangle]\\Hence,\\As\ we\ can\ observe\ that\ \angle C\ is\ the\ largest\ followed\ be\ \angle\ F\ and\ \angle B. \\BF\ is\ the\ longest side\ followed\ by\ BC\ and\ CF.\\Hence, \\BF>BC>CF\\Or,\\CF<BC<BF[/tex]

What is the value of x?
–2x – x + 3 = –12

Answers

Answer:

x = 5

Step-by-step explanation:

-2 -1(coeffcient of -x) = -3

-3x +3 =-12

subtract 3 (the constant) from both sides

cancelling it on the left and leaving -3x = -15

divide each side by -3 leaving x and 5

x = 5

This is hard and long. Good Luck.

Answers

There are three pairs of faces with surface areas of 75.3 square inches, 111.384 square inches and 35.818 square inches.

The surface area of the six faces of the parallelepiped is equal to 444.956 square inches.

The real surface area is between 214.9 square inches and 668.3 square inches.

The mistaken surface area found by Jayden is 443 square inches.

How to determine the surface area of a right angled parallelepiped

In this problem we find a right angled parallelepiped whose dimensions are known. The surface area of the parallelepiped is the sum of the areas of the six faces. There are three pairs of faces with the following dimensions:

Pair 1

A' = (4.92 in) · (15.3 in)

A' = 75.276 in²

Pair 2

A'' = (15.3 in) · (7.28 in)

A'' = 111.384 in²

Pair 3

A''' = (4.92 in) · (7.28 in)

A''' = 35.818 in²

There are three pairs of faces with surface areas of 75.3 square inches, 111.384 square inches and 35.818 square inches.

The surface area of the six faces of the parallelepiped is equal to 444.956 square inches.

The range of measures for the area of the parallelepiped is represented by the following inequality:

6 · 35.818 in² < 444.956 in² < 6 · 111.384 in²

214.908 in² < 444.956 in² < 668.304 in²

The real surface area is between 214.9 square inches and 668.3 square inches.

Lastly, the mistaken surface area found by Jayden is:

A = 2 · (4.92 in) · (15.1 in) + 2 · (111.384 in²) + 2 · (35.818 in²)

A = 442.988 in²

The mistaken surface area found by Jayden is 443 square inches.

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