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3 years ago

5

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1 answer:

Colt1911 [192]3 years ago

8 0

Answer:

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Step-by-step explanation:

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Mike is training to run a marathon. currently, he can run four miles in 44 minutes. if he maintains this running speed, how long

andreyandreev [35.5K]

It would take him 110 minutes to run 10 miles:)

4 0

3 years ago

1 hour = 3,600 seconds and 1 mile = 5,280 feet. Make a conjecture about how you could convert a speed of 15 miles per hour to fe

MrRissso [65]

Answer:

multiply by feet per mile and divide by seconds per hour

Step-by-step explanation:

To get the desired units, multiply by a factor that is equal to 1, but has the desired units in the numerator and the units you're converting from in the denominator.

For units in the denominator that you want to change, use the inverse of the above multiplier.

We have miles/hour, which has miles in the numerator. We want feet/second, which has feet in the numerator, so we need to multiply by the ratio of feet per mile: 5280 ft/mi.

We also have hours in the denominator, where we want seconds. So, we divide by the factor 3600 s/h.

$\dfrac{15\,\text{mi}}{\text{h}}\cdot\dfrac{5280\,\text{ft}}{\text{mi}}\cdot\dfrac{\text{h}}{3600\,\text{s}}=22\,\text{ft/s}$

6 0

3 years ago

- 1(t+8) =7.1 please hurry

Helga [31]

Answer:

t=-15.1

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Kailee paid $14.84 for stamps. The number of .49-cents stamps was four less then three times the number of 21-cent stamps. How m

Akimi4 [234]

Answer:

Kailee bought 26 of 49-cents stamps and 10 of 21-cents stamps.

Step-by-step explanation:

Given:

Total Money paid for stamps = $14.84

Let the number of 49-cents stamps be x.

Also Let the number of 21-cents stamps be y.

Now Total Money paid is equal to sum of number of 49-cents stamps and number of 21-cents stamps.

100 cents = 1$

So 49 cents = $0.49

and 21 cents = $0.21

Hence equation be framed as;

$0.49x+0.21y =14.84 \ \ \ \ equation \ 1$

Also Given:

number of .49-cents stamps was four less then three times the number of 21-cent stamps.

hence we can say that;

$x=3y-4\ \ \ \ equation \ 2$

Now Substituting the value of equation 2 in equation 1 we get;

$0.49(3y-4)+0.21y=14.84\\1.47y- 1.96+0.21y=14.84\\1.68y=14.84+1.96\\1.68y = 16.8\\y=\frac{16.8}{1.68}=10$

Now substituting the value of y in equation 2 we get;

$x=3y-4\\x=3\times10-4\\x=30-4\\x=26\\$

Hence Kailee bought 26 of 49-cents stamps and 10 of 21-cents stamps.

7 0

4 years ago

It takes 4 minutes to fil an empty aquarium to a depth of 2/4 meters. what is the unit rate in minutes per meter ? write your an

Kruka [31]

The unit rate in minutes per meter for filling the given aquarium to a depth of 2/4 meters will be 8 minutes per meter.

We have,

Time taken to fill an aquarium to a depth of $\frac{2}{4}$ m = 4 minutes,

So,

Time = 4 minutes,

And,

Depth = $\frac{2}{4}$ m,

Now,

The unit rate in minutes per meter,

So,

We will Now convert given depth fraction,

i.e.

Depth = $\frac{2}{4}$ = 0.5m,

So,

It takes 4 minutes to fill a half meter,

Then,

To fill a meter it will take = $\frac{4}{\frac{2}{4} }$ = 8 minutes

So,

The unit rate in minutes per meter is 8 minutes per meter.

Hence we can say that the unit rate in minutes per meter for filling the given aquarium to a depth of 2/4 meters will be 8 minutes per meter.

Learn more about unit rate click here

brainly.com/question/26059245

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5 0

2 years ago