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3 years ago

If a car travels at an average speed of x miles per hour, how far would the car travel in 90 minutes?

Mathematics

1 answer:

professor190 [17]3 years ago

4 0

Answer:

1 1/2x

Step-by-step explanation:

90 minutes is 1 and 1/2 hours so I put that with the x on the end so when you get the number times it by that

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Tukar 88 peratus kepada pecahan yang termudah

docker41 [41]

Answer:

kya hai mujhye kuchh samajh na aaraha

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3 years ago

Ron's recycle shop had an old paper-shredding machine. Business was good, so he bought a new paper-shredding machine. The old ma

levacccp [35]

Answer: 1 hour 20 minutes

Step-by-step explanation:

Given : The old machine could shred a truckload of paper in 4 hours.

Rate of work done by old machine = $\dfrac{1}{4}$

The new machine could shred the same truckload in 2 hours.

Rate of work done by new machine = $\dfrac{1}{2}$

Let 't' be the time taken by both of them working together , then we have the following equation:-

$\dfrac{1}{t}=\dfrac{1}{4}+\dfrac{1}{2}\\\\\Rightarrow\dfrac{1}{t}=\dfrac{1+2}{4}\\\\\Rightarrow\dfrac{1}{t}=\dfrac{3}{4}\\\\\Rightarrow t=\dfrac{4}{3}=1\dfrac{1}{3}\ \text{ hours}$

Since 1 hour = 60 minutes

Then, $\dfrac{1}{3}\ \text{ hours}=\dfrac{1}{3}\times60=20\text{ minutes}$

Hence, it will take 1 hour 20 minutes to shred the same truckload of paper if Ron runs both shredders at the same time.

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3 years ago

The following diagram shows a parallelogram 100 degrees <br>what the size of angle A

kotegsom [21]

Answer:

its probley either 90 or 100 degrees

Step-by-step explanation:

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3 years ago

Solve the inequality

ollegr [7]

Answer:

n < 7

Step-by-step explanation:

Solve the bracket first (9-18n)

add the n together (-15n)

add the 9 and the -96 together (-105)

Divide 105 and 15n (7)

n < 7

Have a good day :)

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3 years ago

I need help please.

avanturin [10]

7y2+2y2+3-6y2-3y2-4
7y2+6y2+2y-3y+3-4
y2-y-1

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3 years ago

Read 2 more answers