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3 years ago

I need you guys to check if im correct! if not, show me step by step explanations

Mathematics

2 answers:

tamaranim1 [39]3 years ago

7 0

● Answer:

b) 24 cm

● Step-by-step explanation:

l + 4 = 2w => l = 2w - 4

5w + 6 = P => 5w + 6 = 2w + 2l

5w + 6 = 2w + 2(2w - 4)

5w + 6 = 2w + 4w - 8

6 + 8 = 6w - 5w

w = 14

l = 2x14 - 4

l = 28 - 4

l = 24 cm

Harrizon [31]3 years ago

7 0

It looks like you are correct

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nikdorinn [45]

Answer:

548.96$ pretty certain

3 0

3 years ago

T-8 in a algebric expression

jeka57 [31]

Answer:

the answer would be 7x-8. i hope this helped. :).

Step-by-step explanation:

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7 0

3 years ago

Does the given value make the inequality true? x + 9 > 21, when x = 15

Verizon [17]

Answer:

yes, the inequality is true.

Step-by-step explanation:

15 + 9 = 24

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5 0

3 years ago

Cody's rent is increasing by $51 per month starting next year. That is an increase of 15% from his current monthly rent. Let r r

Inessa05 [86]

Answer:

$r = 43.35$

Step-by-step explanation:

Given

$Current\ Rent = r$

$Increment = 15\%$

$New\ Rent = \$51$

Required

Determine the value of r

The value of r can be set up percentage increase formula as follows:

$\%Increment = \frac{New\ Rent - Current\ Rent}{Current\ Rent}$

Substitute values in the above equation

$15\% = \frac{51 - r}{51}$

Cross Multiply

$51 - r = 15\% * 51$

Convert percentage to decimal

$51 - r = 0.15 * 51$

$51 - r = 7.65$

And the value of $r\ is\ calculated\ using:$

$r = 51 -7.65$

$r = 43.35$

Hence, Cody's current rent is $43.35 monthly

8 0

3 years ago

What is the area of the shaded region?<br> 3 cm

stiks02 [169]

Answer:

7.74cm ^2

Step-by-step explanation:

a=pie * r ^2

3.14*3^2=3.14*9=28.26 then you know all sides of a square are equal and 3 is half of 1 side so 6*6-=36 36-28.26=7.74

3 0

3 years ago