Answer:
-7
Step-by-step explanation:
-4(2)=-8
-8+1=-7........
0.32 to the nearest hundredth would be 0.3
$42 is the answer because 10% of 210 is 21 multiply that by 2
For this case, the first thing we must do is define variables.
We have then:
x: amount of time the assistant works
Y: amount of time the experienced person works
We then have the following system of equations:
x + y = 4
y = (1/2) x
Solving the system we have:
x = 8/3
y = 4/3
Answer:
It would take the roofer, working alone, to complete the same job about:
y = 4/3 hours
