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wolverine [178]
3 years ago
9

Two cars start at the same time, but travel in opposite directions. One car's average speed is 20 miles per hour (mph). At the e

nd of 2 hours, the two cars are 120 miles apart. Find the
average speed in mph of the other car. (Enter an exact number.)
help
X mph
Need Help?
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Mathematics
1 answer:
Otrada [13]3 years ago
5 0

Answer:

The first car's speed is 40 mph. 2 hours at that rate equals 80 miles. So:

 

140-80=60

60 miles/2 hours=30 mph as the rate of the second car.

Step-by-step explanation:

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Sergeeva-Olga [200]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
Put the following in order for the most area in the tails of the distribution. ​(a) Standard Normal Distribution ​(b) Student's​
tensa zangetsu [6.8K]

Answer:

(b) (c) (a)

Step-by-step explanation:

Standard Normal distribution has a higher peak in the center, with more area in this región, hence it has less area in its tails.

Student's​ t-Distribution has a shape similar to the Standard Normal Distribution, with the difference that the shape depends on the degree of freedom. When the degree of freedom is smaller the distribution becomes flatter, so it has more area in its tails.

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5 0
3 years ago
A washer and a dryer cost 634 dollars combined. The washer cost 66 dollars less than the dryer. What is the cost of the dryer?
Nutka1998 [239]

Steps to Solve:

1.  634 / 2 = 317

2. 317 + 66 = 383

Answer:

A = $383

Notes:

Read the question, this problem is not that hard to solve!

8 0
3 years ago
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Setler79 [48]
Sarah can make 2, however she will have 3 feet leftover
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3 years ago
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If 0 = 6n -36 what is the value of n -5
juin [17]
0=6n- 36

6n-36

6 x-5-36

35-36

n=-1 
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8 0
3 years ago
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