Calculate angle S in the rectangle MATH.
1 answer:
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The value of x in the diagram is 8 feet that makes the combined area of the house and the porch to be 733 ft²
<h3>How to calculate area?</h3>
Combined area = big rectangle + smaller rectangle - triangle
Hence:
733 = (13 * (59 - x)) + (x * 9) - 0.5(9 - 7) * (x - 6)
733 = 767 - 13x + 9x - x + 6
x = 8 feet
The value of x in the diagram is 8 feet that makes the combined area of the house and the porch to be 733 ft²
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One sub costs $4.5 and one cookie costs $0.75 or 75 cents
Step-by-step explanation:
Let s be the cost of one sub
and
c be the cost of one cookie
Then according to given statements
"The cost of 3 subs and 7 cookies is $18.75"
"Five subs and 21 cookies cost $38.25"
Multiplying eqn 1 by 3
Subtracting Eqn 2 from Eqn 3
Dividing both sides by 4
Putting s=4.5 in Eqn 1
Dividing both sides by 7
So,
One sub costs $4.5 and one cookie costs $0.75 or 75 cents
Keywords: Linear Equations, Variables
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