There are four shelves of books along a wall in the library. On the top shelf, 16 of the 126 books are checked out. On the second shelf, 8 of the 137 books are checked out. On the bottom shelf, 17 of the 138 books are checked out. How many books are currently on the four shelves?

Answers

Answer 1
Answer: 1st shelf = 126 - 16 = 110

2nd shelf = 137 - 8 = 129

3rd shelf = Doesn't say

Last shelf = 138 - 17 = 121

Add:

121 + 129 + 110 = 360

I think the answer is 360 but since it doesn't mention anything about the 3rd shelf, I'm not sure.

Hope this helped☺☺
Answer 2
Answer: there are currently 360 books on all the shelves

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A lawnmower designer wants to build a lawnmower that measures 3 feet in height, 2 feet in width, and 5 feet in length. She needs to construct a three-dimensional scale model of the lawnmower first. Which measurements are appropriate for the scale model?

Answers

Answer: C. 6 inches high, 4 inches wide, and 10 inches long

Step-by-step explanation:

A scale model will have to use a scale factor that ensures that the actual measurements can be accurately converted to the scale model measurements in an equivalent manner.

This means that the real measurements need to be uniform when converted by the scale factor to the scale model. In other words, in this scenario for instance, when the scale measurements are divided by the real measurements, they should give the same scale factor.

Option C is correct because all the measurements give the same scale factor when divided as opposed to the rest.

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Please help me on my homework

Answers

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At Lincoln elementary school there are 88 students in grade 1 and 116 students in grade 2 grade 3 has 164 students is the number of students in grade 1 and grade 2 greater than the students in grade 3mn

Answers

Yes, as 88 + 116 = 204 students > 164 students in grade 3

A Popsicle store at the beach is comparing their monthly revenue with the sunglasses store next door. The shop owners find that their monthly revenue is positive correlated. This means that eating Popsicles causes people to buy sunglasses.True or False

Answers

Answer:

  False

Step-by-step explanation:

Correlation is not causation.

It may mean that eating popsicles and buying sunglasses have a common cause: sunny days.

Use the distributive property to remove the parentheses.2x+(6x2-9)
Simplify your answer as much as possible.

Answers

After removing the parentheses using the distributiveproperty, the expression2x^4 (6x^2 - 9) simplifies to 12x^6 - 18x^4.

We have,

To remove the parentheses using the distributiveproperty, we need to multiply each term inside the parentheses by the term outside the parentheses.

Applying the distributiveproperty to the expression2x^4 (6x^2 - 9), we have:

2x^4 * 6x^2 - 2x^4 * 9

Multiplying the terms:

12x^6 - 18x^4

Therefore,

After removing the parentheses using the distributiveproperty, the expression 2x^4 (6x^2 - 9) simplifies to 12x^6 - 18x^4.

Learn more about expressions here:

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Answer: 12x^6 - 18x^4

Penny reads 13 pages in 1/2 hour. What is the unit rate for pages per hour? For hours per page? How many hours per page

Answers

Answer:

13 pages : 1/2 hour Multiply both sides by 2

26 pages : 1 hour ------>> 26 pages/hr

Flip over 26 pages/hr ----->>> hr / 26 pages = 1 hr / 26 pages

Split up the fraction: (1/26) hr / page

Answer:

26

Step-by-step explanation:

13 in 1/2 hour

13:1/2

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