Given the rectangles perimeter, find the unknown side lengths.

Mathematics

1 answer:

Dominik [7]3 years ago

3 0

The perimeter is just adding all the sides together.

a.) 180 = 40 + 40 + x + x

180 = 80 + 2x Subtract 80 on both sides

100 = 2x Take 1/2 of 100 to get x

x= 50cm

b.) 1000 = 150 + 150 + x + x

1000 = 300 + 2x Subtract 300 on both sides

700 = 2x Take 1/2 of 700 to get x

x = 350

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drek231 [11]

Second option. 1.5% of 2,700 is 40.5. Multiply that by 5 and you get 202.5 add that to 2,700 and you get 2,902.5. Round that and you get 2,903. Hence, the second option is correct.

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2 years ago

Find the measure of the angle indicated

Lynna [10]

I would say you would subtract 180 minus 76 because a straight line equals 180 if I’m wrong I’m sorry

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3 years ago

Jake is comparing the prices of two laundry service companies. Company A charges $20 per load and an additional $8 as service ch

svet-max [94.6K]

X = number of loads
company A : 20x + 8
company B : 24x + 4

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8 0

3 years ago

Read 2 more answers

Find the values of x and y

icang [17]

Answer:

$x=15\\y=38$

Step-by-step explanation:

By definition, the sum of the interior angles of a triangle is 180 degrees.

You can observe that the given triangle has an angle that measures 90 degrees and it also has two equal sides.This means that the other two angles are equal.

Knowing this, you can conclude that the triangle is an Isosceles Right Triangle and the other angles measure 45 degrees each.

Therefore, now you know that:

$3x=45$