Compare the values they have given you with the diagram. a, b and c are all sides of the triangle they want you to find the perimeter of. Knowing this, all you have to do is add a, b and c. h is not important because you don't count the altitude of a triangle when you calculate perimeter.
12 + 10 + 12 = 34
The perimeter of the triangle is 34 ft.
Step-by-step explanation:
Area of parallelogram =b×h
= 7×x
= 7x cm²
Answer:
-27.5
Step-by-step explanation:
Answer:
y=-1/3x+9
Step-by-step explanation:
<h3>
Answer: 28% discount</h3>
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Proof:
1250 - 900 = 350 is the amount saved
350/1250 = 0.28 = 28% is the discount
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You take 28% of 1250 to get 350, then subtract off 350 to end up with 900
1250 - (28% of 1250) = 1250 - 0.28*1250 = 1250 - 350 = 900
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Or a shortcut is
1250*(1-0.28) = 1250*0.72 = 900
This is because the price is reduced by 28%, so you still pay the remaining 72%