I ned help on homework pls help

Mathematics

1 answer:

zmey [24]3 years ago

4 0

Answer:

Step-by-step explanation:

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DeAngelo is training for a half marathon. Today he is running 13.25 miles. He jogs for the first half hour at a rate of 5.5 mile

Nezavi [6.7K]

For this case, the first thing we must do is define a variable.
We have then:
p: rate in miles per hour for the last 1.5 hours
We now write the equation that models the problem.
We have then:
$(0.5) * (5.5) + 1.5p = 13.25
$
Rewriting we have:
$2.75 + 1.5p = 13.25
$
From here, we clear the value of p.
We have then:
$1.5p = 13.25 - 2.75

p = 10.5 / 1.5

p = 7$
Answer:
DeAngelo's rate for the last 1.5 hours of his run is 7 miles per hour.

5 0

3 years ago

Can you pls solve 2 9 17 20 25

Ganezh [65]

17 . Find the values of g(9) and h(-14) and add them together.

The function equations are given to find their values substitute 9 in g(x) and -14 in h(x)

20. They said f(x) = 2x + 9 and f(x) = 15 , which means they are equal to each other.

So write them as 2x + 9 = 15 , and solve the equation to find the value of x.

25. Here all you have to do is substitute 4 into the f(x) equation to find f(4)and you will have your answer.

Hope this helped!

5 0

3 years ago

-2x - x + 8 = ? a little help please!

Elina [12.6K]

First you would want to add all like terms. So add -2x and -x which will give you the equation -3x+8=?. Now you want to get 8 on the other side to simplify the equation even more so subtract 8 on both sides. -3x=-8. Finally you want to isolate x by dividing by -3 on both sides which will leave you with x=8/3 or x=2 2/3

8 0

3 years ago

Read 2 more answers

If a = 3 and b=5, what is the value of a 2 + b 2?<br> 0 6 + 10<br> 0 84<br> 082<br> 9 + 25

kenny6666 [7]

Answer:

06 + 10

Step-by-step explanation:

a2 + b2

(3x2) + (5 x 2)

6 + 10

therefore option A is the correct answer