How do i solve this question

Mathematics

1 answer:

Gennadij [26K]2 years ago

4 0

9514 1404 393

Answer:

-2

Step-by-step explanation:

Put 6 where x is and do the arithmetic.

$f(6)=\dfrac{5\cdot6-34}{2}=\dfrac{30-34}{2}=\dfrac{-4}{2}=\boxed{-2}$

The corresponding range value is -2.

The ordered pair is (6, -2).

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Today joelle walked at a rate of 3 miles per hour and she ran 15 minutes at a rate of 6 miles per hour.How many total miles did

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I added a screenshot with the complete question

Answer:
Total miles = 2.5 miles

Explanation:
1- While walking:
We are given that Joelle walked 20 minutes at a rate of 3 miles per hour.
This means that she walked $\frac{20}{60} = \frac{1}{3}$ of an hour at a rate of 3 miles per hour
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Distance = velocity * time
Substitute with the givens to get the distance she covered while walking:
Distance = 3 * $\frac{1}{3}$ = 1 mile

2- While running:
We are given that Joelle ran 15 minutes at a rate of 6 miles per hour
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Distance = velocity * time
Substitute with the givens to get the distance she covered while running:
Distance = 6 * $\frac{1}{4}$ = 1.5 miles

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Total distance she covered = 2.5 miles

Hope this helps :)