Your answer is 72%
(71.99233716475094%)
Answer: 9 meters
Step-by-step explanation:
Hi, to answer this question we have to apply the formula:
Surface area if a cylinder (S)= 2 π r2 + 2 π r h
Where r is the radius and h is the height
Diameter is equal to 2r , so in our case:
14 =2r
r = 14/2 = 7 meters
Replacing with the values given and solving for h:
224 pi = 2 π 7^2 + 2 π 7 h
224 π - 2 π 7^2 / 2 π 7= h
703.71 -307.87 /43.98 = h
9 = h
For this case, the first thing we must do is define a variable.
We have then:
x: number of hours it takes the second painter to paint the house working alone.
We have then that the equation that models the problem is:

From here, we clear the value of x.
We have then:
Answer:
It would take the second painter to paint the house by himself about 4.8 hours.
<span>

</span>Start by combining like terms on both sides
-6+3=-3
Now we have:

To isolate g we need to subtract 12 from both sides -18-12= -30
Now we have

Divide both sides by -3 to isolate g, now we have:

When we divide an inequality by a negative we flip the sign so:

becomes:

Final answer:
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