Set up a pair of fractions:

500x = 828 (cross multiply)
x = 1.656 meters high should be the model (1.7 rounded)
Solution for the system of linear equations is (4, - 3)
<u>Step-by-step explanation:</u>
Step 1:
Given system of equations
x - 3y = 13 -------- (1)
2x + 4y = - 4 ----- (2)
Step 2:
Multiply eq(2) with 2 to make coefficients of x equal.
2x - 6y = 26 ------ (3)
Step 3:
Subtract eq(2) from eq(3)
⇒ - 10y = 30
⇒ y = -3
Step 4:
Find value of x by substituting value of y in eq(1)
⇒ x - 3 × (-3) = 13
⇒ x + 9 = 13
⇒ x = 4
40*60=2400
1/2 of 2400
=1200
Answer:
C ,D, E
Step-by-step explanation:
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Answer:
The answer is 350 sqft
Step-by-step explanation:
terrace 48 sqft
back porch is = 6x6 = 36 sqft
side deck = 3x14 = 42 sqft
playroom = 16x14 = 224 sqft
Total area of the tree house: 48+36+42+224 = 350 sqft