14000+7x=35x (x being the number of books) solve for x and you have your answer. 14000=35x-7x=28x therefore x=14000/28=500 so he needs to sell 500 books before he breaks even.
Let's say that the shorter piece is x and the longer piece is 5x (because it's 5 times as long). x+5x=72 and 6x=72. Dividing both sides by 6, we get that x=12, and 72-12=the length of the other piece (since there are only 2 pieces)=60
4 significant figures.
we can start counting the numbers after all the zeros in front. the zeros in front doesn't count in. but the zeros after the first number that is 1 or larger counts.
therefore we only need to look at 3010
C jsnndbdbdbdbx ndndnndnd d dndnxnxnnxnxjxjxjxncncnnxnx
Answer:
x = 17/2
Step-by-step explanation:
x-3 x+8
------ = ------------
2 6
Using cross products
(x-3) *6 = 2 (x+8)
Distribute
6x - 18 = 2x+16
Subtract 2x from each side
6x-2x-18 = 2x-2x+16
4x-18 = 16
Add 18 to each side
4x-18+18 = 16+18
4x = 34
Divide each side by 4
4x/4 = 34/4
x = 17/2
