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gulaghasi [49]
3 years ago
13

Dina and Masha started out on a 20 miles bike path at the same time. When Dina reached the end of the 20 miles, Masha still had

4 miles left to bike. If Dina’s biking speed was 10 mph, find Masha’s biking speed.
Mathematics
2 answers:
leonid [27]3 years ago
4 0

Answer:

8mph

Step-by-step explanation:

(20-4)/2

=16/2

=8

Bingel [31]3 years ago
3 0

Answer:

8

Step-by-step explanation:

(20-4)/2=16/2=8

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The first side of a triangle measures 4 in. less than the second side, the third side is 3 in. more than the first side, and the
Firdavs [7]

Answer:

\boxed{\frac{23}{3} ~in} or \boxed{7,7~in}

.

Step-by-step explanation:

Suppose, the first side is a, the second side is b, and the third side is c. So:

→ a = s - 4

→ b = s

→ c = (s - 4) + 3

→ a + b + c = 15

First step, find the value of s

a + b + c = 15

(s - 4) + s + (s - 4) + 3 = 15

3s - 5 = 15

3s = 15 + 5

3s = 20

s = \frac{20}{3}

So, the third side is

c = (s - 3) + 4

c = s + 1

c = \frac{20}{3} + 1

c = \frac{23}{3}

.

Happy to help :)

5 0
3 years ago
Read 2 more answers
9. Tobias ran 3 miles. How many millimeters did he run? (1 mile = 1,610 meters)
Gekata [30.6K]

Welcome to Brainly! I'm happy to help!

We see that there are 1,610 meters in a mile. However, we are looking for millimeters, not meters. But, knowing the meters will help us out.

A millimeter is a very small measurement. There are 1,000 millimeters in 1 meter. A meter is much larger. So, if we want to convert 1,610 meters to millimeters, there are going to be way more millimeters because they are so minute.

This means that we will have to multiply. We know that there are 1,000 millimeters in 1 meter, so if we multiply our meters by 1,000 (which is basically just adding 3 zeros), we will get the number of millimeters in one mile!

1,610×1,000=1,610,000 (one million six hundred and ten thousand!)

Don't forget that we are looking for 3 miles though, so we can take the number of millimeters in one mile and multiply by three.

1,610,000×3=4,830,000 (four million eight hundred and thirty thousand!)

So, Tobias ran 4,830,000 millimeters!

Have a wonderful day and keep on learning! :D

7 0
3 years ago
Dan had 15 cups<br> Of apple juice he wanted to add 6 oz how much would he have in the end?
yaroslaw [1]
If you want to know the total, it would be 15 cups and 6 oz. One cup is 8 oz, so 6 oz would have to stand next to 15 cups. 
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This information is only accurate if you are using USA  measurements. 
Hope this helps! Have a happy holiday!
6 0
3 years ago
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Yuri [45]

Answer:

Y=n^2+n

Step-by-step explanation:

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