ijungkookleo ijungkookleo

01-09-2021
Mathematics

contestada

2. A rectangle has a perimeter of 100. Its
length is 50 22 and its with is lo + 1).
What is the value of a?
11
G 17
H 13
3

2 A rectangle has a perimeter of 100 Its length is 50 22 and its with is lo 1 What is the value of a 11 G 17 H 13 3 class=

Respuesta :

Leora03 Leora03

05-09-2021

Answer:

Option H

Step-by-step explanation:

Perimeter of rectangle= 2(length) +2(width)

100= 2(5a -22) +2[½(a +1)]

Expand:

100= 2(5a) +2(-22) +a +1

100= 10a -44 +a +1

Simplify:

100= 11a -43

+43 on both sides:

11a= 100 +43

11a= 143

Divide both sides by 11:

a= 143 ÷11

a= 13

Thus, option H is correct.

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