<em>Answer</em>
B) y = 3
<em>Step-by-step explanation</em>
Given the system of equations:
Isolating x from equation 1:
Substituting equation 3 into equation 2 and solving for y:
Answer:
9
Step-by-step explanation:
the answer is 9 because 18 $÷2 = 9
3 is no cuz obtuse angle is >90 degrees, all the angles together must equal 180 degrees, and if you try it, you get no. 5 is 25% of 45, which is $11.25.
A. C = 17h + 15
b. 83 = 17h + 15
-15 - 15 subtract 15 from both sides
68 = 17h
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17 divide both sides by 17
4=h
They cleaned the house for 4 hours
c. C = 20x
to do this last part, you would put both equations into the calculator under y=, then look at the table to determine when the price is the same. According to the calculator, the price is the same at 5 hours
