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lesantik [10]
3 years ago
15

A car travels around a circular track. The inside wheels follow along the line of the inner circle, and the outer wheels follow

along the line of the larger circle. The radius of the larger circle is 25 ft, and the radius of the smaller circle is 21 ft. Determine how much farther the outer wheels would travel than the inner wheels after one revolution.
A.4 ft
B. 8ft
C.4 pi ft
D.8 pi ft
Mathematics
1 answer:
forsale [732]3 years ago
8 0
Circumference is: C = 2<span>πr

</span>Circumference of the bigger circle (outer tire) is 157ft. Circumference of the smaller circle (inner tire) is 132ft.

<span>50π - 42π, which is 8</span>π
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X+6=20 so what must X represent to get blank plus 6=20??
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Answer:

14

Step-by-step explanation:

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3 years ago
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Which of these equations, when solved, gives a different value of x than the other three? 9.1 = -0.2x + 10 10 = 9.1 + 0.2x 10 –
garik1379 [7]

Given:

Different equations are given.

Rhyan paid using a gift card that had $22.20 on it. After the sale, Rhyan's gift card had $1.90 remaining.

To find:

The equation which gives a different value of x than the other three.

To find the equations that could you use to find the price of one tire patch.

Solution:

In option A,

9.1 = -0.2x + 10

0.2x= 10-9.1

0.2x= 0.9

Divide both sides by 0.2.

x=\dfrac{0.9}{0.2}

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In option B,

10 = 9.1 + 0.2x

0.9= 0.2x

4.5=x

In option C,

10-0.2x = 9.1

-0.2x = -0.9

x = 4.5

In option D,

9.1 – 10 = 0.2x

-0.9 = 0.2x

-4.5 = x

Since option D has difference solution, therefore the correct option is D.

Let price of one tire patch be x.

So, price of 4 tire patches = 4x

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Total amount = $22.20

Price of 4 tire patches + Remaining amount in gift card = Total amount

4x+1.9=22.2

It can be written as

4x-22.2=-1.9,1.9=22.2-4x,22.2-4x=1.9

Therefore, the correct options are C and E.

4 0
3 years ago
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Answer:

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Step-by-step explanation:

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Use same order of corresponding vertices in the name of triangles.

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