Nine tenths of a sum a money 2.70find the sum of money
1 answer:
Answer:
$3.00
Step-by-step explanation:
Setting up an equation with a variable and using key words from the problem will allow you to solve for the sum of money.
'x' = sum money
'nine tenths of a sum' =
'is 2.70': = 2.70
=2.70
Multiply both sides by the reciprocal of 9/10 (10/9):
(10/9)(9/10)x = 2.70(10/9)
x = 27/9 = $3.00
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Answer:
The dimensions of the pool are:
Width: 8.944 feet
Length: 17.888 feet
Step-by-step explanation:
From Geometry, the area of a rectangle (), measured in square feet, is determined by the following equations:
(1)
Where:
- Width, measured in feet.
- Length, measured in feet.
If we know that ,
and
, then we get the following second order polynomial:
(1)
And we solve the expression for :
Then, the dimensions of the pool are, respectively:
and