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3 years ago

After 2 hours, Ernie had travelled 192 miles. If he travels at a constant speed, how far will he have travelled after 5 hours?

Mathematics

2 answers:

Digiron [165]3 years ago

5 0

Answer: 480

Step-by-step explanation:

Since we know that after two hours Ernie travelled 192 miles, we need to find the miles for one hour. We can find this by dividing the miles by the number of hours travelled so far. 192/2 = 96. We now know that Ernie travels 96 miles an hour. In order to calculate it for 5 hours, we need to times the 96 by 5. 96 * 5 = 480. Ernie travelled 480 miles in 5 hours.

Marysya12 [62]3 years ago

4 0

Answer:

the answer is "480"

Step-by-step explanation:

so 192 divided by 2 hours is 96 so thats 96 miles per hour then I simply do 96 x 5 hours

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Lines a and b are parallel.

VashaNatasha [74]

I have added a screenshot with the complete question along with a diagram representing the scenario.

Answer:
s = 22°

Explanation:
1- getting the top right angle of line B:
We are given that:
the top right angle of line A = 158°
Since lines A and B are parallel, therefore, the top right angle of line A and the top right angle of line B are corresponding angles which means that they are equal
This means that:
Top right angle of line B = 158°

2- getting the value of s:
Now, taking a look at line B, we can note that:
angle s and the top right angle form a straight angle. This means that the sum of these two angles is 180°
Therefore:
180 = s + 158
s = 180 - 158
s = 22°

Hope this helps :)

8 0

3 years ago

A girl is 18 years old and her brother is a third of her age. When the girl is 36 what would be the age of the brother?

ale4655 [162]

First we need to calculate how many years her brother has when she is 18. As text says he is:
18/3 = 6 years old

Now when she gains another 18 years (36-18=18) he will also gain those 18 years

When she is 36 he will have 6+18=24 years old

Answer is 24.

8 0

4 years ago

Read 2 more answers

A factory's worker productivity is normally distributed. one worker produces an average of 77 units per day with a standard devi

VLD [36.1K]

One worker produces an average of 84 units per day with a street What is the probability that in any single day worker 1 will outproduce worker 2? A) 0.1141.

Answer, factory worker productivity is normally distributed. One worker produces an average of 75 units per day with a standar, day with a standard deviation of 20. Another worker produces at an average rate of 65 per day.

4 0

3 years ago

What are the solutions to

Svetllana [295]

Answer:

B and F

Step-by-step explanation:

Given

x² + 4x + 4 = 12 ( subtract 4 from both sides )

x² + 4x = 8

Using the method of completing the square to solve for x

add ( half the coefficient of the x- term )² to both sides

x² + 2(2)x + 4 = 8 + 4, that is

(x + 2)² = 12 ( take the square root of both sides )

x + 2 = ± $\sqrt{12}$ ( subtract 2 from both sides )

x = ± $\sqrt{12}$ - 2

= ± 2 $\sqrt{3}$ - 2

Hence

x = 2 $\sqrt{3}$ - 2 → B

x = - 2 $\sqrt{3}$ - 2 → F

4 0

4 years ago

The rectangle shown has a perimeter of 154 cm and the given area. Its length is 5 more than five times its width. Write and solv

Andreyy89

Answer:

2(L+W) = 34

L + W = 17

L*W = 52

L = 2W+5

2L + 2W = 34

L - 2W = 5

--------------- add

3L = 39

L = 13

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3 years ago

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