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marusya05 [52]
3 years ago
11

Marty’s dog can run 3 miles in 20 minutes. What is the dog’s speed in miles per hour?

Mathematics
2 answers:
stich3 [128]3 years ago
7 0
9mph because 20 minutes time 3 is one hour so multiply 3 by 3 to get 9
Gnom [1K]3 years ago
5 0

Answer:

9m

Step-by-step explanation:

easy 20 20 20 each 3 m

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PtichkaEL [24]
It’s 17 i’m pretty sure because 20+ 5 is 25 and 25 - 10 is 15 then 15+5=20 and 20-3 is 17
7 0
1 year ago
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Plz help me i need to ace this tyvm =3
Irina-Kira [14]
First looks more bell than anything, second, there are 18-time trials, third, I'm not completely sure.
5 0
3 years ago
You need a 70% alcohol solution. On hand, you have a 420 mL of a 85% alcohol mixture. How much pure water will you need to add t
Nimfa-mama [501]

Answer:

Pure water =74.1 mL

Step-by-step explanation:

You need 420 mL of a 70% alcohol solution.

420 mL of solution and 70% of it should be alcohol.

So,

420 * 70/100 mL

= 420 * 0.7

= 294 mL of alcohol and the rest should be water.

On hand, you have a 85% alcohol mixture.

The alcohol can only come from the 85% mixture. So, how much of 85% alcohol do we need to get 294 mL of alcohol:

Let

y = alcohol solution needed

85% of y = 294

85/100 * y = 294

y = 294 ÷ 85/100

y = 294 × 100/85

y = 29,400/85

y = 345.88235294117

Approximately, 345.9mL

The rest of 420 mL solution has to be pure water

Pure water = 420 mL - 345.9mL

= 74.1 mL

Pure water =74.1 mL

6 0
3 years ago
What is the slope of the line?<br> slope-2<br> slope 1<br> slope1
Debora [2.8K]

Answer:

-1

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
54:40
Natali5045456 [20]

Answer:

d) 73 m

Step-by-step explanation:

From the Question, we are told that:

Maya is finding the area of the shaded triangle below.

A triangle has a base of 73 meters and a height of 10 meters.

If she considers 10 m to be the height of the triangle, what should she use as the triangle’s base?

The area of a triangle = 1/2 × Base × Height

We are already told the base of the triangle from the question and this is 73 m

Option D, 73 m is the correct answer

8 0
3 years ago
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