i need elp ill give a brainly to whoever helps me

I Need Elp Ill Give A Brainly To Whoever Helps Me

Answers

Answer 1

Answer:

x=3

Step-by-step explanation:

cross multiply

12.5*2=30

10*x=10x

10x=30

/10

x=3

Answer 2

Answer:

30

Step-by-step explanation:

2.5X12=30


Related Questions

Laura buys a saddle in the UK for £850 Delivery is free. Steve buys the same saddle from Holland for 990 Euros. He pays 15 Euros for delivery. £1 = 1.18 Euros Including the delivery charge, whose saddle is cheaper?

Answers

Answer:

Laura's saddle is cheaper

Step-by-step explanation:

We want to convert from euros to pound and compare which purchase is more expensive.

given data

we are told that Steve buys the same saddle from Holland for 990 Euros

given the exchange rate in pounds, it will be

£1 = 1.18 Euros

 x=990 Euros

cross multiply we have

x=990/1.18

x= £838.98

Steve buys at  £838.98

delivery charge is  15 Euros to pounds

£1 = 1.18 Euros

 x=15 Euros

cross multiply we have

x=15/1.18

x= £13.04

to expenses incurred by Steve= £838.98+£13.04

=£852.02

Laura's saddle is cheaper

Wayne graphed the following linear function on an (x,y) coordinate plane.

f(x) = -5.4x+12.6

What is the y intercept of the graph of this function ?​

Answers

Answer:

12.6

Step-by-step explanation:

The y intercept means that x=0, therefore you will plug in 0 in your equation.

f(x) = -5.4x + 12.6

f(0) = -5.4(0) + 12.6

f(0) = 0 + 12.6

=12.6

Find the value of x that makes m || n. Explain.

Answers

Answer:

Step-by-step explanation:

x=120/3

x=40

Answer:

40

Step-by-step explanation:

if m||n then 3x must be equal to 120°

120° = 3x divide both sides by 3

40 = x

Of the 25 fish that Karl caught
from the lake, 7 were trout. The
estimated population of the lake is
6,500 fish. About how many trout
would
you expect to be in the lake?

Answers

Answer:

1,820 trout

Step-by-step explanation:

Set up a proportion where x is the number of trout in the lake:

[tex]\frac{7}{25}[/tex] = [tex]\frac{x}{6,500}[/tex]

Cross multiply and solve for x:

25x = 45,500

x = 1820

So, you could expect 1,820 trout to be in the lake.

Question 3 of 10
What is the measure of RST?

A. 72°
B. 162°
C. 324°
D. 81°

Answers

B I’m not sure but check

Answer:

D. 81

Step-by-step explanation:

This answer was confirmed by two people in the comments.

What I did to get this answer was subtract 162 by 81 so the math that I did was to make sure I got the same number as the answers.

[tex]162-81=81[/tex] ☑

[tex]162-72=90[/tex] ☒

[tex]162-162=0[/tex] ☒

[tex]162-324=-162[/tex] ☒

So, therefore the answer is [tex]81[/tex].

I hope this helped you. :)

9/4 plus 3/8 (please show work)

Answers

Answer:

21/8 or 2 5/8

Step-by-step explanation:

9/4 + 3/8

The least common denominator being 8 so you would add the numerators.

18+3/8

Which would be:

21/8 or, as a mixed fraction, 2 5/8

No rush on this one:)

The price of a shirt decreases by 13$. Which integer represents the decrease in the shirt’s price?

Answers

Answer:

-13

Step-by-step explanation:

-13 since it's going down in price

Three computers just scanned for viruses at the same time. Computer A runs a virus scan every 10 days. Computer B runs a virus scan every 12 days, and Computer C runs a virus scan every 16 days. How long will it be until all the computers run a virus scan at the same time again?

Answers

Answer: 240 days.

Step-by-step explanation:

The number of days that it'll will be until all the computers run a virus scan at the same time again will be calculated by solving for the lowest common multiples of the numbers. This will be:

Multiples of 10 = 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240.

Multiples of 12 = 12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 192, 204, 216, 228, 240

Multiples of 16 = 16, 32, 48, 64, 80, 96, 112, 128, 144, 160, 176, 192, 208, 224, 240

Here, we can see that the least common multiple is 240. Therefore, all the computers will scan at the same time in 240 days.

* Ms. Quintero has visited 16 of the 50 states. What percent of the states has she visited? KEY Part (is) Whole(of) % 100 Whole

A.25%
B.32%
C.16%
D.8%​

Answers

Answer:

B. 32%

Step-by-step explanation:

16/50 = 32% lol

goodluck!

8.78 + 6.2 show you work

Answers

Answer:

14.98

Step-by-step explanation:

1

8.78

6.20

---------

14.98

Answer:

14.98

Step-by-step explanation:

8.78

+6.2

--------

14.98

you want to imagine 6.2 like 6.20

so...

8.78

+6.20

----------

14.98

the 8 goes down 7+2=9 the (.) goes down 8+6=14 14.98

hope this helps :)

point slope line equation of the line through (8,-8) and (9,8)

Answers

Answer:

y+8=16(x-8)

Step-by-step explanation:

y-y1=m(x-x1) is the formula

Just substitute from the first pair then you should get the answer.

y = 4x + 12
What is the x - intercept?

Answers

Answer:

The x-intercept is -3

Step-by-step explanation:

So what you need to do is just graph this like any other equation

Start and (0, 12) and make a point

Then the slope is 4 so go up 4 and right 1 and keep doing that.

Then go the opposite direction so down 4 left 1

After that see where the line hits the x-axis, in this case, its (-3, 0)

So the x intercept is -3 or (-3, 0)

Pls mark brainliest because i didn't waste your time lol

Answer: (-3, 0)

Step-by-step explanation: If you want to find the x- intercept for y = 4x + 12, you’ll have to plug y = 0 into the equation and solve the resultint equation 0 = 4x + 12 for x. [0 = 4 x -3 + 12]. Hence, x = -3, so the x - intercept is (-3, 0).

Which is an example of Identity Property of Addition ?
6 + 0 = 6
23+5=5+3
07x1 = 7
O (5+9) + 8 = 5 + (9 + 8)
+

Answers

Answer:

Probably the last one but the numbers are kind of jumbled up so...

Step-by-step explanation:

Have a good day

C- Identity Property is a number multiplied by one so it’s keep its identity
Ex- 3x1=3 , 7x1=7

Evaluate the expression shown below and write your answer as a fraction in simplest form.
3
4
+
1
6
4
3

+
6
1

plss help

Answers

Answer:

Step-by-step explanation:

the answer would be 11/12

Randy, Sandy and Todd are my cousins and their combined age is 87 years. Randy is four times as old as Sandy, but Todd is actually 15 years older than Sandy. How old are each of my cousins

Answers

Answer:

Randy is 48 years old

Sandy is 12 years old

Todd is 27 years old

Step-by-step explanation:

Given

Represent their ages with the first letters of their names:

[tex]R + S + T = 87[/tex]

[tex]R = 4 * S[/tex]

[tex]T = 15 + S[/tex]

Required

Determine their individual ages

We'll solve the above equations using substitution method of simultaneous equations

Substitute 15 + S for T and 4 * S for R in [tex]R + S + T = 87[/tex]

This gives:

[tex]4 * S + S + 15 + S = 87[/tex]

[tex]4 S + S + 15 + S = 87[/tex]

Collect Like Terms

[tex]4 S + S + S = 87 - 15[/tex]

[tex]6S = 72[/tex]

Divide through by 6

[tex]S = 72/6[/tex]

[tex]S = 12[/tex]

This implies that Sandy is 12 years old

Substitute 12 for S in [tex]R = 4 * S[/tex] and  [tex]T = 15 + S[/tex]

[tex]R = 4 * 12[/tex]

[tex]R = 48[/tex]

[tex]T = 15 + 12[/tex]

[tex]T = 27[/tex]

This implies that Randy is 48 years old and Todd is 27

For the following exercises, determine whether the relation is a function
a) {(5.2),(6,1),(6,2),(4,8)}​

Answers

Ummmmmmmmmmmmmmmmmmmmmmm

Find the total surface area of the
following square pyramid:
9 cm
10 cm
SA = [?]cm2

Answers

Answer:

280 cm2

Step-by-step explanation:

1)find the area of square

A=LW

=10×10

=100

2) find the area of triangle

A=B×H÷2

=10×9/2

=45

Coz,there are 4 triangle we multiple by 4

=45×4

=180

3)find the total surface area by adding the two

=100+180

=280cm2

Answer:

SA = [280] cm 2

Step-by-step explanation:

For Lateral Area the formula is 4(1/2 10 x 9)

But the 1/2 makes it 4(1/2 5 x 9)

Then you multiply 5 x 9 = 45 then multiply 45 by the 4 and get 180

Then for Surface Area you put in (180 + 100) = 280

You get the 100 by multiplying 2 of the base numbers together.

Given the exponential function [tex]f(x) = -2(0.8)^x[/tex], what is the value of f(x) when x =0?

Answers

Answer:  -2

Work Shown:

[tex]f(x) = -2(0.8)^x\\\\f(0) = -2(0.8)^0\\\\f(0) = -2(1)\\\\f(0) = -2\\\\[/tex]

In the third step, I used the idea that [tex]x^0 = 1[/tex] where x is any nonzero number.

Bella wants to save for a vacation in three years and this vacation costs $2300. She deposits $2000 into a bank earning 5% interest compounded monthly. How much money does Bella have after 3 years?

Answers

Answer:

$2,323.2

Step-by-step explanation:

A = P(1 + r/n)^nt

Where,

A = future value = ?

P = present value = 2,000

r = interest rate = 5% = 0.05

n = number of periods = 12

t = time = 3 years

A = P(1 + r/n)^nt

= 2,000(1 + 0.05/12)^12*3

= 2,000( 1 + 0.00417)^36

= 2,000( 1.00417)^36

= 2,000(1.1616)

= 2,323.2

A = $2,323.2

HELP LOL i have no idea it might be just me

Answers

Answer:

Step-by-step explanation:c

Answer: 35+0.60m

The $35 is the starting value and the .6 is the rate of change


[tex] |15 - 4| [/tex]
PLEASEEEEE HELPPP ​

Answers

Answer:

11

Step-by-step explanation:

15-4=11

|11|=11

Remember that the lines mean absolute value, so whatever the answer is, it will be positive.

15-4=11 therefore, the absolute value pf this is 11.

PLEASE HELP
Which one do I choose of the three

Answers

Answer:

substract -5.8 from-2.6

Step-by-step explanation:

I hope this help you

the length of a rectangle is 8 units greater than its width . find the dimensions when its area is 105 square units.

Answers

I hope this helps ;)

i’m trying one last time
Write an equation in standard form of the line that passes through the following
points, where a ≠0 and b ≠0.

Answers

Answer:

The equation =3 is equivalent to = 0 +3. From this form, we know the line has slope =0.

Step-by-step explanation:

Answer:

ax + by = c

Step-by-step explanation:

The standard form of the line is

ax + by = c; where a, b and c are numbers

Also a and b are coefficients are not zero so there are x and y terms.

Find the balance in the account.
$3,800 principal earning 2%, compounded annually, after 7 years

Answers

Answer:

A = $4360.515918 which rounded to the nearest penny is $4360.52

Step-by-step explanation:

Please help this is due in 30 mins

Answers

This is a Rotation !

Answer:

im pretty sure its c or rotation

Step-by-step explanation:

1/5+x+2/3=1 PLEASE HELP

Answers

Answer:

x=2/15

Step-by-step explanation:

1/5+x+2/3=1

3/15+x+10/15=15/15

13/15+x=15/15

x=2/15

Answer:

the answer to your question

The notebook shows the money Lisa earned and spent on her first day selling kale at the
Farmers' Market. A positive number represents money earned. A negative number represents
money spent. Lisa wants to find her profit for the first day.

Answers

Answer:

Step-by-step explanation:

7 + (-5)= 2

on a piece of paper graph y=-2x-3. then determine which answer matches the graph you drew

Answers

The line will cut the y-axis at y = -3

Equation of a line

The standard equation of a line is expressed as y = mx + b

where:

m is the slopeb is the y-intercept

Given the equation y = -2x - 3, you can see that the slope is -2 and the y-intercept is -3.

This shows that the line will cut the y-axis at y = -3

Learn more on line graph here: https://brainly.com/question/14323743

4v + 4(v + 10) = -2v - 20

Answers

V =-6 bc I distribute 4 into v+10 and go 4v+10 and add the same numbers and subtract both side and add both side to get v alone and divided 10v into -60 so the answer is v=-6
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