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Sever21 [200]
3 years ago
8

Helpppppp please!!!!!

Mathematics
1 answer:
ioda3 years ago
8 0

1. Prop. of addition

2. Identity of Addition

3. inverse prop of x

4. identity prop of +

5. Commutative prop

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Perimeter of an isosceles triangle is 90 m. If the length of the two equal sides is three fourth of the unequal side , find the
Sveta_85 [38]

Answer:

The length of the equal side is 27 meters each and that of the unequal side is 36 meters

Step-by-step explanation:

An isosceles triangle is a triangle with two sides being equal (also two equal base angles).

Let us assume the length of the two equal sides to be x meters each, and the length of the unequal side to be y meter. Since the perimeter of the triangle is 90 m, it can be expressed as:

x + x + y = 90

2x + y = 90

But the length of the equal side is  three fourth of the unequal side, i.e x = 3/4y

Therefore:

2(3/4y) + y = 90

3/2y + y = 90

2.5y = 90

y = 90/2.5

y = 36 meters

Also x = 3/4 * 36 = 27 meters

The length of the equal side is 27 meters each and that of the unequal side is 36 meters

5 0
3 years ago
WHO EVER ANSWERS FIRST GETS BRSINLESTTTT!!!!!!
VLD [36.1K]
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8 0
2 years ago
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What are the terms in the expression 6ab+7c-8d+11f
Tasya [4]

The answers are 6, 7, 8, and 11.

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3 years ago
5 ≤ 12 - m, if m = 8
WINSTONCH [101]

m \:   <  7

<em>hope </em><em>it</em><em> helps</em>

8 0
2 years ago
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Can you show the working out as well please?​
Airida [17]

Answer:

BC = 60

Step-by-step explanation:

3X + X = 80      <---- X = BC

3X + X = 4X

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4X ÷ 4 = X

80 ÷ 4 = 20

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6 0
3 years ago
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