Answer:
![x = -105](https://tex.z-dn.net/?f=x%20%3D%20-105)
Step-by-step explanation:
<u>What number</u> <u>divided by</u> <u>-7</u> <u>is equal to</u> <u>-15</u>
∨ ∨ ∨ ∨ ∨
x ÷ -7 = -15
Multiply -7 to both sides:
![\frac{x}{-7}=15](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B-7%7D%3D15)
![x = -105](https://tex.z-dn.net/?f=x%20%3D%20-105)
Answer:
75
Step-by-step explanation:
V=S/T(the formula)
V= 375/5
V=75
Answer:
I think is -x + 105/42y
Step-by-step explanation:
2(3/10)x - 5/7y - 4(5/6)y - 2(4/5)x
6/10x - 5/7y - 20/6y - 8/5x
6/10x - 8/5x - 5/7y - 20/6y
6-16/10x - 35+140/42y
-10/10x + 105/42y
-x + 105/42y
Solving:
1) Pass: Make the rule three (Directly proportional)
Two inch nails ______ grams (<span>Weight)
</span>15 ----------------------------35
n ----------------------------- 175
2) Pass: <span>Multiply cross
</span>
![35*n = 15*175](https://tex.z-dn.net/?f=35%2An%20%3D%2015%2A175)
3) Pass: Simplify
![35*n = 15*175](https://tex.z-dn.net/?f=35%2An%20%3D%2015%2A175)
![35n = 2625](https://tex.z-dn.net/?f=35n%20%3D%202625)
![n = \frac{2625}{35}](https://tex.z-dn.net/?f=n%20%3D%20%20%5Cfrac%7B2625%7D%7B35%7D%20)
![\boxed{n = 75}](https://tex.z-dn.net/?f=%5Cboxed%7Bn%20%3D%2075%7D)
Answer:
75 nails weigh 175 grams