Answer:
A=39.06 Sq Ft
Step-by-step explanation:
We are given with a square which has a side of 6.25 feet. We are asked to determine the area in square feet and Round to the correct significant digits.
Area of square is given as
A= side x side
Side = 6.25 ft
A=6.25 x 6.25
A= 39.0625
Rounding it to the nearest hundredth place
A=39.06 sq ft
Let’s take fred age as x and Natalie’s age as y.
So,
A/Q
X + Y = 43. Let it be eqution 1
and
X + 4Y = 79. Let it be equation 2
Combining equation 1 and 2, we get
( X + Y) + 3Y = 79
43 + 3Y = 79
3Y = 36
Y = 12
Now, evaluating the value of Y in equation 1 we get,
X + 12 = 43
X = 31
Therefore, Fred is 31years old and Natalie is 12 years old.
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