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3 years ago

7

A train travels 15 miles per hour faster than a car. If the train covers 100 miles in the same time the car covers 75 miles, wha

t is the speed of each of them?

2 answers:

Pachacha [2.7K]3 years ago

8 0

Attached the solution and work.

Assoli18 [71]3 years ago

5 0

The train is going 60 mph and the train is going 45 mph

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Joy recorded the distances she walked each day for five days. How far did she walk in 5 days?

laila [671]

Answer: She walk $2\frac{1}{6}\ miles$ in 5 days.

Step-by-step explanation:

Since we have given that from the graph:

Distance of $\frac{1}{3}$ for 3 days.

Distance of $\frac{1}{2}$ for 1 day.

Distance of $\frac{2}{3}$ for 1 day.

So, Total distance she covered by walk in 5 days is given by

$\frac{1}{3}\times 3+\frac{1}{2}+\frac{2}{3}\\\\=1+\frac{1}{2}+\frac{2}{3}\\\\=\frac{6+3+4}{6}\\\\=\frac{13}{6}\\\\=2\frac{1}{6}\ miles$

Hence, She walk $2\frac{1}{6}\ miles$ in 5 days.

4 0

4 years ago

761.8 x 10^-8 Express the number in scientific notation. A) 7.618 x 10^-6 B) 7.618 x 10^-8 C) 7.618 x 10^2 D) 7.618 x 10^6

ludmilkaskok [199]

Answer:

$\huge\boxed{A)\ 7.618\times10^{-6}}$

Step-by-step explanation:

The scientific notation:

$a\cdot10^n$

where

$1\leq a$

We have

$761.8\times10^{-8}$

We need to move the decimal point two places to the left.

$\underbrace{(7.618\times10^2)}_{=761.8}\times10^{-8}=7.618\times(10^2\times10^{-8})$

use

$a^n\cdot a^m=a^{n+m}$

$=7.618\times10^{2+(-8)}=7.618\times10^{-6}$

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3 years ago

Solve 148×35. using us standard algorithm

lesya692 [45]

It would be 5180 for the answer

8 0

3 years ago

4. What is the value of the underlined digit?

Arisa [49]

Answer:

hundreth, because it is the second digit after the decimal point.

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3 years ago

Kareem stepped to the free throw line for two shots. if the probability of making each shot is 3/4,what is the probability that

EastWind [94]

To calculate the probability of making both shots you will multiply the probability of making .one by the same probability.

3/4 x 3/4 = 9/16

The probability of Kareem making both shots is 9/16.

8 0

4 years ago