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Deffense [45]
2 years ago
13

Before lunch, Carol hiked 3 5/8 miles. After lunch, she hiked another 2 7/8 miles. How far did she hike altogether?

Mathematics
1 answer:
ELEN [110]2 years ago
8 0

6 6/8 or 6 3/4 simplified

Step-by-step explanation:

First, add 5/8 and 7/8

Next, divide the sum of 5/8 and 7/8 (which is 1 4/8)

Lastly, add the wholes and 1 from 4/8

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The distance between Chicago and Cleveland is
lozanna [386]

Answer:

The average speed on this trip was 46.15 mph. The correct option is A.

Step-by-step explanation:

In order to calculate the average speed, we need to apply the following formula:

v_{avg} = \frac{\text{distance}}{\text{time}}

We were given the distance between the two cities in miles, therefore we can directly apply it to the expression. Although the time was given in the hh:mm 12 h format and we need a diference in hours, so we will convert that as shown below:

\text{time departure} = 9 + \frac{50}{60} = 9.83 \text{ h}

\text{time arrival} = 12 + 5 + \frac{30}{60} = 17.5

The elapsed time of the trip is the difference between these:

\text{time} = 17.5 - 9.83 = 7.67 \text{ h}

We can now apply it to the formula:

v_{avg} = \frac{354}{7.67} = 46.15 \text{ mph}

The average speed on this trip was 46.15 mph. The correct option is A.

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3 years ago
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