6.4 square feet per minute were painted
Step-by-step explanation:
First of all we have to find the area of the rectangular wall to find the wall painting per minute
Given
Length = l = 12 feet
Width = w = 8 feet
So,
Total time to paint the wall = 15 minutes
Time to paint per square feet:
Hence,
6.4 square feet per minute were painted
Keywords: Area, Unit rate
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Answer:
Rs 300000
Step-by-step explanation:
Given that,
Length of a rectangular park, l = 150 m
Breadth, b = 100 m
We need to find the cost of fencing the park at the rate of 20 per metre. The area of a rectangle is given by :
A = lb
So,
Cost of fencing,
So, the required cost is Rs 300000.
Answer:
Smaller Number = 10
Larger Number = 33
Step-by-step explanation:
Let the smaller number be "x" and the larger number be "y"
5 TIMES smaller is SUBTRACTED from TWICE larger, the result is 16, we can write:
2y - 5x = 16
and
Larger increased by 3 TIMES SMALLER, result is 63, so we can write:
y + 3x = 63
We can write this in terms of x, as:
y = 63 - 3x
Now we put this in equation 1 and solve for x first:
2y - 5x = 16
Now,
y = 63 - 3x
y = 63 - 3(10)
y = 63 - 30
y = 33
Smaller Number = 10
Larger Number = 33