Answer:
15 units = h
Step-by-step explanation:
formula to find the volume is:
V = (l·w·h) ÷ 3
675 = (9)(15)h ÷ 3
675 = 135h ÷ 3
multiply each side by 3 to get:
2025 = 135h
2025/135 = h
15 = h
2x-4 because I got -4+2x and it’s the same thing
Answer: 33 gallons
Step-by-step explanation:
We initially have 130 gallons of a 
acid solution and we need to change it to a 
acid solution, and for that it is necessary to evaporate 
gallons of water.
So, this situation can be mathemtically expressed as follows:
Then:
Isolating :
Hence, we need to evaporate 33 gallons of water.
A would be 12. If your sister is 6 years older than your brother your brother is 4
if your brother is 1/3 your age 4 times 3 you are 12
Answer:
B. -2
Step-by-step explanation:
The complete degree of a triangle is 180 so to solve this we would need to solve: 60+70+x+52=180.
60+70=130
130+52=182
182+-2=180
