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Vikki [24]
2 years ago
5

A student estimated a mass to be 250 grams but upon carefully measuring it, he found the actual mass to be 240 grams. What is th

e percent of error?
Mathematics
1 answer:
disa [49]2 years ago
6 0
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An isosceles triangle has a perimeter of 36 inches. Its base is 2 1 /2 times longer than each of its legs. What are the lengths
tensa zangetsu [6.8K]

Answer:

8 in, 8 in and 20 in

Step-by-step explanation:

Let the equal sides of the isosceles triangle be x, then

The base = 2.5x

Sum the 3 sides and equate to the perimeter of 36

x + x + 2.5x = 36

4.5x = 36 ( divide both sides by 4.5 )

x = 8

Thus the 2 equal legs = 8 in

base = 2.5x = 2.5 × 8 = 20 in

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