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andriy [413]
3 years ago
11

A car tire with a radius of 16inches is turning at a rate of 120 revolutions per minute. Find the exact linear speed of the tire

in feet per minute.
Mathematics
1 answer:
anygoal [31]3 years ago
4 0

Answer:

The speed of the tyre of the car is 1002.24 feet per minute .

Step-by-step explanation:

Given as :

The radius of the car wheel = r = 16 inches

Since 12 inches = 1 feet

So,  16 inches = \frac{1}{12}×16 = 1.33 feet

The number of revolution of the wheel = 120 revolution per minute

Let The speed of the wheel = s feet per minute

The circumference of wheel = 2 × \pi × radius

where  \pi  = 3.14

or, circumference =  2 × 3.14 × 1.33

Or, Circumference = 8.352 feet

Now , Speed =  circumference of wheel × number of revolution

or, Speed = 8.352 feet × 120 revolution per minute

∴ Speed = 1002.24 feet per minute

Hence The speed of the tyre of the car is 1002.24 feet per minute . Answer

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The two triangles shown are similar. Find the value of d/c
Stolb23 [73]

Answer:

D. None of the above

Step-by-step explanation:

\frac{c}{9}  =  \frac{d}{7.5} \\  \frac{d}{c}  =  \frac{7.5}{9}

P.S. hope it helped. If you have any questions, I'll be glad to answer them❤

7 0
3 years ago
Please help ASAP!! will give brainest answer !
Sliva [168]

Answer:

I hated doing this in middle school

8 0
2 years ago
Of the 250 students at Moreland middle school, 80% ride the bus to school. Monica wants to know the number of students that ride
LekaFEV [45]
You would put 80 x
—- = ——
250 100

So those are fractions^
The first thing you do here is cross-multiply. (It doesn’t matter which sides you multiply together first)
So 250 times x= 250x
Then cross multiply 80 and 100 to get:
8,000
You now have ur new equation:
250x=8,000
The next thing you do here is divide both sides by 250, since 250 is the number with a variable in it (aka “x”)
You then get:
32 students as you’re final answer.
I hope that helped you understand !
7 0
3 years ago
If Eugene can buy three cantaloupes for $7. Then how many can you buy with $14
suter [353]
I believe the answer would be 6 because 7x2=14 so 3 cantaloupes x 2= 6
8 0
2 years ago
A linear function has the same y-PLEASE PLEASE HELP!!!!intercept as x+2y=10 and it’s graph contains the point (9,7) find the slo
Anastasy [175]

Answer:

I think it is 2/9 or 0.22

Step-by-step explanation:

You know they have the same y intercept, so first you should find the y intercept of the givern equation.

<em>x+2y = 10   </em>

<em>2y = -x + 10        [subtract x]</em>

<em>y = -.5x + 5          [divide by 2]</em>

Now you have the equation in graph form, and know the y intercept is 5.

If the unknown function has the same y intercept, you know it contains the point (0,5), and it is given that it includes the point (9,7)

now that you have two points, you can use slope formula.

<em>(y2 - y1)/(x2-x1)</em>

<em>(change in y)/(change in x)</em>

so,

<em>(7-5)/(9-0) = 2/9 = 0.2</em>

someone please correct me if i'm wrong:)

7 0
3 years ago
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