Answer:
5
Step-by-step explanation:
y = 15 - 3x
0 = 15 - 3x
15 - 0 = 3x
x = 5
2 1/2 litres would be a reasonable amount of water assuming everyone drinks the same amount.
7.) 4x greater because 8*8=64 and 4*4=16 64/16=4
8.) 22 because 70-13-13=44/2=22
9.) 32 because the square root of 64 is 8 so each side is 8 square feet
10.) The rectangle is an 8 by 5 and the perimeter is 26
Answer:
10560 feet
Step-by-step explanation:
multiply the length value by 5280
