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3 years ago

9

Maria and Ming start at the same point and drive in opposite directions.Maria drives 38 mph and Ming drives 50 mph.How far apart

will they be in 2 hours?

1 answer:

Vinvika [58]3 years ago

4 0

Answer: the answer is 176 miles apart

Step-by-step explanation: Since they are both driving for 2 hours the speed they are going is doubled and then added together to get 176

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40% Of Francine's t shirts are red. If she has 20 shirts. How many are red

tester [92]

The number of red t shirts is 8.

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3 years ago

Find the x-intercepts of the parabola with<br> vertex (7,-12) and y-intercept (0,135).

Ira Lisetskai [31]

Answer:

x=9 and x=5

OR

(9,0) and (5,0)

Step-by-step explanation:

<u>Use vertex form to solve for the unknown variable</u>

$y=a(x-h)^2+k\\\\135=a(0-7)^2-12\\\\147=a(-7)^2\\\\147=49a\\\\3=a$

<u>Use the new equation to find the x-intercepts</u>

<u /> $y=3(x-7)^2-12\\\\0=3(x-7)^2-12\\\\12=3(x-7)^2\\\\4=(x-7)^2$

$2=x-7\\9=x$

$-2=x-7\\5=x$

Therefore, the x-intercepts of the parabola are (9,0) and (5,0). Feel free to review the attached graph for more information.

8 0

3 years ago

A deal is a deal, so here is a good one, let's see who gets it right. I had $10.00. My mom gives me $30.00, My dad gave me $30.0

Yanka [14]

Answer:

$180 in total!

Step-by-step explanation:

10 + 30 + 30 + 100 + 10 = 180

the uncle and aunt gave their money together, it didn't specify that they each gave 100

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3 years ago

David runs on a track that is 1/4 mile long he completes it in 1/20 of an hour

posledela

Answer:

<h2> 5mile per hour</h2>

Step-by-step explanation:

Step one:

given data

distance= 1/4mile

time taken= 1/20 hour

Step two:

Required

speed

we know that speed is

speed= distance/time

substituting

speed= 1/4/1/20

speed=1/4*20/1

speeed=20/4

speed=5mile/hour

The option a sis correct, the speed is 5mile per hour

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