Answer:
x=8
Step-by-step explanation:
10x + 80 < y = 20x
subtract 80 from both sides
10x = 20x - 80
subtract 20 from both sides
-10x = -80
divide both sides by -10
8
Answer:
90cm
Step-by-step explanation:
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Answer:
2 years
Step-by-step explanation:
Simple interest is calculated using the formula: I = prt, where I = the amount of interest earned, p = principal amount, r = rate and t = time. In this case, you know the principal = $2000, the rate = 1.5% or 0.015 and the I = $60, so you are solving for time 't':
I = prt or $60 = $2000(0.015)t
Simplify: 60 = 30t
Divide both sides by 30: 60/30 = 30t/30 or t = 2 years.
Answer: A. 76 sq. units
Step-by-step explanation:
1. You can use the following formula for calcualte the area of the parallelogram:
Where 
is the base and 
is the height of the parallelogram
and 
2. The formula for calculate the area of a rectangle is:
Where 
is the base and 
is the height of the rectanngle.
and 
3. Then, the area of the figure is the sum of the area of the parallelogram and the area of the rectangle:
