Because the length of each side of the square is equal to the diameter of the circle
Answer:
8
Step-by-step explanation:
yellow marbles=2b-7
blue marbles=2b
2b+2b-7=23
4b=23+7
4b=30
b=30/4
b=7.5
yellow marbles=2b- 7
2 x 7.5 -7
15 - 7
=8
Answer:
$83.97
Step-by-step explanation:
Let's find the total thickness of all 42 books first. To do this, we do 42 * 1.75 = 73.5 inches. We know that each shelf is 3 feet long, but we want to convert to the same unit so that it's easier to calculate, so each shelf is 3 * 12 = 36 inches long. Now, to find the number of shelves needed, we'll do total thickness/length of each shelf which is 73.5 / 36, or 2.04. Our answer has to be an integer (because you can't have half of a shelf), so do we round up or down? Well, if we rounded down, then there wouldn't be enough room for all the books, so we round up to 3 shelves instead. Because each shelf is $27.99, the price for 3 will be 27.99 * 3 = $83.97. Hope this helps!
<span>We know that A to B is equal to 6 - (-1.5), which is 7.5 in length. We also know that MB is twice as long as AM. This means 2AM=MB and AM+MB=7.5. Therefore, AM+2AM=7.5, or 3AM=7.5. Dividing out 3 from both sides shows that AM=2.5. To find point M on the number line, we can then add 2.5 to point A (the lower point on the number line, which gives us 1. M=1.</span>
415 - 338 = 77
There are 77 more 3rd graders than 2nd graders
