Root both sides of the equation
x+3= plus or minus root 7
Subtract 3 from both sides.
Answer:
12
Step-by-step explanation:
The square root of 144 is 12
The 1st stage: x, the 2nd stage: y.
x + y = 152
x = y + 28
y + 28 + y = 152
2 y = 152 - 28
2 y = 124
y = 124 : 2 = 62
x = 62 + 28 = 90
Answer: the first stage burns 90 seconds and the second burns 62 seconds.
Answer:
I'm just going to take a guess and say 36?
Step-by-step explanation: