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Elanso [62]
3 years ago
11

A car traveling at a steady speed. It travels 1 1/2 miles in 2 1/4 minutes. How far will it travel in 44 minutes? In 1 hour?

Mathematics
2 answers:
kati45 [8]3 years ago
8 0

Answer: 665

Step-by-step explanation:

Alex_Xolod [135]3 years ago
4 0

Answer:

The car will travel 29 1/3 miles in 44 minutes, 40 miles in an hour.

Step-by-step explanation:

First, find how far the car can travel in one minute.

(1 1/2)/(2 1/4)=(2/3)

Then multiply the amount of time in minutes.

(2/3)*44= 29 1/3

(2/3)*60=40

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I THINK THIS IS IT

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2 years ago
Which scatter plot shows a positive linear association between the variables?
Alborosie

Answer:

graph A.

Step-by-step explanation:

A is a positive linear graph because the dots are going up which means that something in the graph is increasing which is positive.

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3 years ago
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A circle has a diameter of 25cm. How far from the centre of this circle is a chord 16cm long? Draw a picture before you start.
yan [13]

Answer:

The cord is 9.6 cm away from the centre of the circle.

Step-by-step explanation:

<u>See The Image First</u>

The image below shows a picture of everything that’s given, labeled, and drawn in the circle.

<u>Description of the Picture:</u>

You can use the Pythagorean to find the what the distance (the length <em>b</em>) the cord is from the center. You can use the radius as the hypotenuse. The radius is half of the diameter, and the diameter is 25. So the radius is 12.5, which means that 12.5 is the hypotenuse of the triangle (also known as side <em>c</em>). The whole length of the cord is 16cm long, and we can use half of the cord, which is 8cm, for the triangle. So we know two sides already: the hypotenuse (the radius) and the length <em>a</em> of the triangle (half of the length of the cord).

<u>To Solve (variables </u><em><u>a</u></em><u>, </u><em><u>b</u></em><u>, and</u><em><u> c</u></em><u>, are in italics so you don’t get confused):</u>

⇒ Use the formula of the Pythagorean Theorem (a^{2}+b^{2}=c^{2}), where <em>b </em>is the length of the distance from the cord to the centre of the circle (what we need to find out), <em>a </em>is the length of the side of the triangle (half of the cord size – 8cm), and <em>c </em>is the hypotenuse (the radius – 12.5cm). So plug the given values of <em>b</em> and <em>c</em> into the formula:

a^{2}+8^{2}=12.5^{2}

⇒ Solve for <em>a </em>by simplify:

a^{2}+64=156.25

⇒ Subtract 64 from both sides:

a^{2}=92.25

⇒ Find the square root of both sides to get<em> a</em> by itself:

\sqrt{a^{2}}=\sqrt{92.25}

⇒ Simplify to get:

a=\sqrt{92.25}  which convert’s to a=9.60468635...  round the answer to the nearest tenth is a=9.6

<u />

<u>Answer:</u> The cord is 9.6 cm away from the centre of the circle.

I hope you understand and that this helps with your question! :)

8 0
2 years ago
How much do u make in one year if u work 25 hours In a week and make 12.50 an hour
jek_recluse [69]

Answer:

16250

Step-by-step explanation:

i really dont know if im right i also just found out how many weeks in a year then did 12.50x25 then that x how many weeks are in a year

7 0
2 years ago
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