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2 years ago

Adding and Subtracting Decimals

Mathematics

1 answer:

Alex17521 [72]2 years ago

5 0

Answer: 14.353 or 18.647

Step-by-step explanation:

Hi.

Subtracting:

16.5 - 2.147 = 14.353

Adding:

16.5 + 2.147 = 18.647

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3 years ago

What is 5/9 as a decimal and percent?

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The answer is 0.555556 I really hope this helps!

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3 years ago

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4.) Trina earns $28.50 tutoring for 3 hours. How much would Trina earn tutoring for 2 hours?

Dafna11 [192]

Answer:

Step-by-step explanation:

First, find the unit rate. (How much she makes in 1 hour.)

28.50/3 is 9.5

Now it asks for how much she will make in 2 hours.

9.5 x 2 is

19.

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3 years ago

Zach and Warren both leave the coffee shop at the same time, but in opposite directions. If Warren travels 7 mph faster than Zac

Solnce55 [7]

Answer:

The speed of the Zach travelling is 8 miles per hour.

The speed of the Warren travelling is 15 miles per hour.

Step-by-step explanation:

Given : Zach and Warren both leave the coffee shop at the same time, but in opposite directions. If Warren travels 7 mph faster than Zach and after 7 hours they are 161 miles apart.

To find : How fast is each traveling?

Solution :

Let the speed of Zach is x mile per hour.

If Warren travels 7 mph faster than Zach

The speed of the Warren is x+7 miles per hour.

Zach and Warren both leave the coffee shop at the same time, but in opposite directions.

The distance covered is 161 miles in 7 hours.

We know, $\text{Distnace}=\text{Speed}\times \text{Time}$

Substitute,

$161=(x+x+7)\times7$

$\frac{161}{7}=2x+7$

$23=2x+7$

$2x=23-7$

$2x=16$

$x=8$

The speed of Warren is 8+7=15

The speed of the Zach travelling is 8 miles per hour.

The speed of the Warren travelling is 15 miles per hour.

6 0

3 years ago

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Find the range of the given data set. 5/8, 3/4, 1 1/8, 1 1/4 A)5/8 B)3/4 C)1 1/8

rodikova [14]

Answer:

A)5/8

Step-by-step explanation:

The range of a set of data is the difference between the highest and lowest values in the set.

Given data set:

5/8, 3/4, 1 1/8, 1 1/4

Rewriting the data set in the same denominator to compare:

5/8, 6/8, 9/8, 10/8

As we see the smallest value is 5/8 and the highest value is 10/8, so the difference:

10/8 - 5/8 = 5/8

So, the range of the given data set is 5/8

Correct choice is: A)5/8

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3 years ago