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m_a_m_a [10]
3 years ago
11

A flat rectangular piece of aluminum has a perimeter of 70 inches. The length is 11 inches longer than the width. Find the width

. A. 34 inches B. 35 inches C. 23 inches D. 12 inches
Mathematics
2 answers:
qwelly [4]3 years ago
8 0

Answer:

The answer is the option D

12\ inches

Step-by-step explanation:

we know that

The perimeter of a rectangle is equal to

P=2L+2W

where

L is the length side of the rectangle

W is the width side of the rectangle

In this problem we have

P=70\ in

so

70=2L+2W ------> equation A

L=W+11 ------> equation B

Substitute equation B in equation A and solve for W

70=2[W+11]+2W

70=2W+22+2W

4W=70-22

W=48/4

W=12\ in

rodikova [14]3 years ago
5 0

perimeter = 2L +2w

L = w+11

70 = 2(w+11) +2w

70 = 2w+22+2w

70= 4w + 22

48 = 4w

w=48/4 = 12

width = 12

length = 12+11 = 23

2x12 = 24

2x23 = 46

46+24 = 40

 length = 23 inches, width = 12 inches

Answer is D

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Answer:

2 degrees and 178 degrees.

Step-by-step explanation:

So, remember if 2 angles are supplementary, they equal 180 degrees. Let's call the smaller angle x, meaning the bigger angle, which is 89 times the size of the smaller angle, would be 89x. Now let's put that into an equation.

180 = x + 89x

We now have to group the x's together:

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Now in order to determine x, we have to divide by 90 on both sides.

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Step-by-step explanation:

4 0
3 years ago
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Luda [366]
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3 0
3 years ago
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The accompanying table shows the number of bacteria present in a certain culture over a 4 hour period, where x is the time, in h
Vlad [161]

Answer:

Step-by-step explanation:

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4 0
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If venom A is four times as potent as venom B and venom C is 2.5 times as potent as venom B. How many times as potent is venom C
weqwewe [10]

Answer:

Venom C is  0.625 times as potent as venom A.

Step-by-step explanation:

We are given that venom  A is four times as potent as venom B.

Venom C is 2.5 times as potent as Venom B.

We have to find that how many times as potent is venom C is compared to venom A.

Let Venom B =x

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Hence, venom C is  0.625 times as potent as venom A.

7 0
3 years ago
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