No because the sum could also be irrational number which for example it could be square root of 9 or 49
Hope this helps answer your question
Answer:
6 and 2/5
Step-by-step explanation:
20% of 32 is 6.4
1/16
multiples 15,30,45,60, and 75 making 5/80 then you simplify to 1/16
Answer:
42 gallons 45% antifreeze
28 gallons 95% antifreeze
Step-by-step explanation:
If x is volume of 45% antifreeze, and y is volume of 95% antifreeze, then the total volume is:
x + y = 70
And the total amount of antifreeze is:
0.45 x + 0.95 y = 0.65 (70)
Solving by substitution:
0.45 x + 0.95 (70 − x) = 0.65 (70)
0.45 x + 66.5 − 0.95 x = 45.5
21 = 0.5 x
x = 42
y = 28
Answer:
The submarine is 15 feet below sea level.
Step-by-step explanation: