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2 years ago

9

Is anyone able to answer this?

1 answer:

Sveta_85 [38]2 years ago

6 0

Step-by-step explanation:

(59,76) , (65,100)

independent variable 76times per minute and 100 per minute dependent variable 65°F and 59°F

$m = \frac{y2 - y1}{x2 - x1} = \frac{100 - 76}{65 - 59} = 4$

y = mx + b

76 = 4(59)+b

b = -160

y= 4x -160

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<u>Step-by-step explanation:</u>

Correct Question : Tom has a scale model of his car. The scale factor is 1 : 12. If the actual car has 16-inch wheels, what size are the wheels on the scale model?

We have , The scale factor is 1 : 12. We need to find If the actual car has 16-inch wheels, what size are the wheels on the scale model .Let's find out:

Ratio of size of wheels to actual size of wheels is 1:12 , but actual car has 16-inch wheels So ,

⇒ $\frac{1}{12} = \frac{x}{16}$ { x is size of wheel in scale model }

⇒ $\frac{1(16)}{12} = \frac{x}{16}(16)$

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A bicycle tire has a diameter of 62 \text{ cm}62 cm62, start text, space, c, m, end text. What is the distance the bicycle tire

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The distance bicycle tire travels is <u>1946.8 cm</u>.

Step-by-step explanation:

Given:

Diameter of bicycle tire = 62 cm.

The bicycle tire travels in 10 revolutions.

Now, to find the distance the bicycle tire travels in 10 revolutions.

Diameter = 62 cm.

Radius (r) = $\frac{Diameter}{2}=\frac{62}{2}=31\ cm.$

So, we get the circumference first by putting formula:

$Circumference =2\pi r$

$Circumference =2\times 3.14\times 31\\\\Circumference =194.68\ cm.$

Thus, we get the <u><em>circumference of tire 194.68 cm.</em></u>

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Now, to get the distance the bicycle tire travels we multiply circumference of tire by number of revolutions the tire travels:

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