Mathematics High School

Rashida keeps her collection of 162 books on three shelves there are 42 books on the first shelf there are x books on the second self the number of books on the third shelf is 2 times the number of books on the second shelf what is the value of x the number of books on the second shelf

Answers

Answer 1

Answer:

Step-by-step explanation:

162-42=120

divide 120 by the other 2 shelves and get 60. if its 2 times the number of books on the second shelf its 60.

Related Questions

Which table could represent a function?

input -5 -4 -3 -2 -1
output 0 1 2 3 4

input 4 3 2 3 1
output 10 9 12 15 2

input -8 -6 -4 -2 -8
output 1 -1 1 -1 -1

input 10 20 30 20 10
output -10 -20 -30 20 10

Answers

Answer:

First option

Step-by-step explanation:

If each input value leads to only one output value, classify the relationship as a function.

Answer:

input -5 -4 -3 -2 -1

output 0 1 2 3 4

Step-by-step explanation:

Nathaniel is going to invest $76,000 and leave it in an account for 18 years. Assuming the interest is compounded continuously, what interest rate, to the nearest tenth of a percent, would be required in order for Nathaniel to end up with $100,000?

Answers

Answer:

did you ever get the answer bc I have this and need help pls and thank you

Step-by-step explanation:

Answer:

Step-by-step explanation:

1.5%

8. M&M's cost $10.00 for 3/4 of a pound. Snickers cost $9.50 for 1 pound.
Milky Way's cost $2.00 for 1/4 of a pound. Which is the true statement?

M&Ms are the best buy
Snickers are the best buy
Milky Ways are the best buy
They are all the same price

Answers

Answer:

MILKY WAYS

Step-by-step explanation:

Answer:

Milky Way's are the best buy.

Step-by-step explanation:

Milky Way's Cost $8 a pound.

Snickers cost $9.50 a pound.

M&M's cost over $10 a pound.

Hamburger meat sells for $6 for every 3 pounds. If Alicia buys 10 pounds of hamburger meat, how much will she pay hamburger meat sells for $6 for every 3 pounds.

Answers

the correct answer will be $20

She'll pay 20$. If the meat is 6$ for every three pounds and she is trying to buy ten pounds, she's going to be purchasing at least nine pounds of the meat. 3x3=9, so 6x3=18. After that she'd still have a pound to pay for. In this case we divide. 3/3=1, so 6/3=2. One pound of meat is equal to 2$. Add 18$ and 2$ and you get 20$

Factor completely.
n^2 + 7 n - 44

A) (n + 4)(n - 11)
B) (n - 4)(n + 11)
C) (n - 4)(n - 11)

Answers

(n-4)(n+11) so pretty much B

Easy.
Find the area of the figure.

Answers

Answer:

i DONT KNOW

Step-by-step explanation:

Question 1 (25 points)
An isosceles triangle has a base 8.8 units long. If the congruent side lengths have measures to the first decimal place, what is
the shortest possible length of the sides?
4.5
8.9
4.3
Od
17.7
b
С

Answers

Answer:

4.5

Step-by-step explanation:

For any triangle, the basic principle for these types of problems is that the sum of the 2 shorter sides has to be greater than the longest side, otherwise it is not a triangle, even if it's equal to the longest side.

So, let's look at the first option. 4.5. Since this is an isosceles triangle and the base is 8.8 units, the other side has to be 4.5 as well. 4.5+4.5=9. 9 > 8.8. So, we can immediately eliminate options 8.9 and 17.7. What about 4.3? Well, 4.3+4.3= 8.6, but 8.6 < 8.8, so 8.6 is wrong. So, the answer is 4.5.

Simplify:

√3 (√3+x)

A. (3+x)√3

B. 2x√3

C. 3+x√3

(I'll mark brainliest if you explain and show your work)

Answers

Answer:

Step-by-step explanation:

[tex]\sqrt{3}[/tex] times [tex]\sqrt{3}[/tex] = 3 and [tex]\sqrt{3}[/tex] times x = [tex]\sqrt{3}[/tex]x

So that means that answer is 3+[tex]\sqrt{3}[/tex]x which is C

if a number is a natural number, then it is also a whole number inverse

Answers

Answer:

I believe you're learning geometry. Anyways, here are examples of natural numbers: 1, 2, 3... Meanwhile, here are examples of whole numbers: 0, 1, 2, 3... Natural numbers are all the positive whole numbers. Whole numbers are quantities that are both positive and neutral, and don't include any fractions or decimals.

Step-by-step explanation:

it is i think sorry if wrong

A movie theater has 26 rows of seats with an equal number of seats in each row. The theater can seat a total of 390 people. Solve the equation 26x = 390 to find the number of seats x that are in each row.

Answers

Answer:

15 seats per row or x=15

Step-by-step explanation:

26x = 390

390/26 = 15

PLZ MARK AS BRAINLIEST

Answer:

Step-by-step explanation:

26x = 390

26 26

x = 15

Please help, and plz don't be saying this is the right answer if u dont know for sure.

Answers

It will be 9x + 1 = 12x + 20.

The answer you’ll put in the box is 1, because it doesn’t ask you to solve for x, just fill in the number.

Answer:

The blank in the equation is 1.

x = 7 and the vertical angles measure out to 64 degrees.

Step-by-step explanation:

When solving for x, you always want to keep the variables on one side. So you'll subtract 9x from both sides. That gives you 1=3x-20. Then you'll add 20 to both sides. This gives you 21=3x. After you'll divide by 3 on both sides. This gives you 7=x.

Now you'll plug in 7 for x. This gives you 12*7-20=9*7+1. First, you'll multiply which gives you 84-20=63+1. Add and you'll get 64 on both sides.

Ben sells homemade cards at a craft fair. He wants to earn more than $50 at the fair. He sells his cards for $2 and he has already earned $36. How many cards foes he need to sell to reach his goal? Write and solve an inequality.

Answers

Answer:

He must sell 8 cards to reach the minimum goal.

Step-by-step explanation:

Giving the following information:

He wants to earn more than $50 at the fair.

He sells his cards for $2 and he has already earned $36.

First, we need to calculate the money required to reach the minimum goal:

51 - 36= $15

Now, we write the inequality:

2*x >15

x= number of cards sold.

x>15/2

x> 7.5

He must sell 8 cards to reach the minimum goal.

Im struggling in math rn and i need help with this problem 3 1/4 = 1/2 + w

Answers

Answer:

w= 2 3/4

Step-by-step explanation:

First, we need to find what can equal w. So, we can subtract 1/2 form both sides, so one sides has just w and one side has just a number. 3 1/4-1/2= 2 3/4. So w= 2 3/4

Answer:

2 3/4

Step-by-step explanation:

3 1/4 = 1/2 + w

Transfer 1/2 to other side

3 1/4 - 1/2 = w

Solve

w = 2 3/4

Hope this helps!! Please give Brainliest!!

3(4x+5) = 12x+15 what does it equal?

Answers

Answer: AllRealNumbers

Step-by-step explanation:

1. Distrubute: 3(4x+5)=> 12x+15

2. Simplify: 12x+15=12x+15

=> 15=15

Since it cancels out it means that x can be any real number.

Have a nice day! :D

What kind of sequence is this? –41, –51, –61, –71

Answers

Answer:

Arithmetic

Step-by-step explanation:

how would the numbers 6870000 appear in scientific notation on a calculator screen

Answers

Answer: D

Step-by-step explanation:

Plz help!!! 10 pts..

Answers

Answer:

63 boquets were sold in the afternoon.

Step-by-step explanation:

Divide 90 by 10 to get 9. Then multiply 9 by 3.

Answer:

23.1 pounds.

Step-by-step explanation:

Multiply 140 by 0.165.

PLEASE ANSWER FAST this is homework and my teacher is giving us time to do it even if the deadline passed I don't know fractions

Answers

For this the answer for 6. Is 5/1 and 7. Is 9/1

Answer:

Step-by-step explanation:

5/7

2.9 months to 4.9 months

Answers

What’s exactly is the question?

Hi there!

For 2.9 months to reach 4.9 month, simply subtract both terms to find the result of months left to get to 4.9 months.

[tex]4.9-2.9=4-9+9-9=2.0[/tex]

Final Result: 2.0

Lillie begins solving the equation 4 (x - 1) - x = 3 (x + 5) -11. Her work is shown below.

Answers

Answer:

I dont know

Step-by-step explanation:

sorry but I need these points

Answer:

The equation has no solution

Step-by-step explanation:

I got it right on edge 2021

What is the value of 6x90.6

Answers

Answer:

543.6

Step-by-step explanation:

answer is 543.6 :)

What's the additive inverse of - 1/4

Answers

Answer:

+ 1/4

Explanation:

Additive inverses are numbers that equal 0 when added together.

-1/4 + (+1/4) =

-1/4 + 1/4 = 0

Graph this function using intercepts:

4x - 5y = 40

Answers

use photomath for that that's way easier

i think this is how you do it

Erin rolled a number cube with sides labeled 1 through 6. She rolled the number cube 400 times and recorded each result. About how many times could Erin expect to roll a 4?

Answers

Answer:

about 67 times

Step-by-step explanation:

hope this helps :)

Solve the equation.
5x = 16
Solve for x

Answers

Answer:

x=3.2

x=15/6

x=3 1/5

es que necesito para diagnostico

Elena is feeding her neighbor’s dogs. Each dog gets 1/2 cup of dog food, and she uses 3 cups of food when she feeds them. How many dogs does her neighbor have?

Answers

Answer:

brainliest please

Step-by-step explanation:

6 dogs because 1/2 cup per dog 6 divided by 3 = 1/2 or 2

so2 dogs per cup

The trend line passes through (10,9) and (35,0). Write an equation for the trend line.

Answers

Answer: Solution :

Step 1 :

Make a scatter plot of Lily’s running data.

Step 2 :

To draw a trend line, use a straight edge to draw a line that has about the same number of points above and below it. Ignore any outliers.

Step 3 :

Find the slope of the trend line.

The line passes through points (2, 20) and (4.5, 45).

Use the slope formula.

m = (y2 - y1) / (x2 - x1)

Substitute x1, = 2, y1 = 20, x2 = 4, and y2 = 45.

m = (45 - 20) / (4.5 - 2)

m = 25 / 2.5

m = 10

Step 4 :

Find the y-intercept of the trend line.

Slope-intercept form equation of a line :

y = mx + b

Plug y = 20, m = 10 and x = 2.

20 = 10 · 2 + b

20 = 20 + b

Subtract 20 from both sides.

0 = b

Step 5 :

Use your slope and y-intercept values to write the equation.

Slope-intercept form equation of a line :

y = 10x + 0

So, the equation for the trend line is

y = 10x

Example 2 :

David records the number of chapters and the total number of pages for several books as given below.

No. of chapters

No. of pages

130

125

170

160

Step-by-step explanation:

Last week, Naomi set a new personal record for running the mile. She beat her previous record by 14 seconds. The time change from her previous record can be represented by ________.
A. Zero
B. A negative rational number
C. A positive rational number

Answers

Answer:

negitive :)

Step-by-step explanation:

If the side of every square is 2 centimeters, how many centimeters is the circumfence of the figure?

*if you cant see the photo, click on it*

Answers

Answer:

76 cm

Step-by-step explanation:

[tex]|FE| = |CB| = 4\cdot2=8\,cm\\\\|ED|=|DC|= \sqrt{(3\cdot2)^2+(4\cdot2)^2}= \sqrt{6^2+8^2}=\sqrt{100}=10\,cm\\\\|FA|=|AB|= \sqrt{(6\cdot2)^2+(8\cdot2)^2}= \sqrt{144+256}=\sqrt{400}=20\,cm\\\\\\Circumference = FE+ED+DC+CA+AB+FA\\\\Circumference =8+10+10+8+20+20=76\,cm[/tex]

1. Evaluate each algebraic expression.
c. 3b - 5
for b = -2
for b = 3
for b = 9

I need the answer

Answers

Answer:

-11, 4, and 22

Step-by-step explanation:

Expression: 3b-5

when b=-2

Expression: 3(-2)-5=-11

When b=3

Expre; 3(3)-5=4

When b=9

Expre; 3(9)-5=22

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