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lidiya [134]
3 years ago
15

Carrie runs 11.5 miles and five hours at a study pi runs 11.5 miles in five hours at a steady pace how long does it take her to

run 2 miles
Mathematics
1 answer:
alukav5142 [94]3 years ago
8 0

dividing 11.5 by 5 gives you the unit rate, then you just multiply that answer by 2 and you should be okay

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3 years ago
A car travels 20 1/2 miles in 2/3 of an hour. What is the average speed, in miles per hour, of thr car?
zmey [24]

Answer:

27.33333... mph

Step-by-step explanation:

Find 1/3 of 20 1/2: 1/3*41/2=41/6

That equals 6.83333...

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3 0
2 years ago
Which of the following is a solution of the system 2x + y = 9 and 3x + 5y = 19.​
Nezavi [6.7K]

2x+y=9

3x+5y=19

I will do this problem in 2 ways. I.)Substitution II.)Elimination

Solution I.) Substitution

We can subtract 2x from both sides in the first equation.

y=9-2x

Now we can substitute the y in the second equation with 9-2x

3x+5(9-2x)=19

-7x+45=19

-7x=-26

x=26/7

y=9-2(26/7)=11/7

Solution II.)Elimination

We can multiply both side of first equation by 5 to get a 5y in both equations.

10x+5y=45

Now because both are positive 5y we just need to do simple subtraction of the 2 equation, each side respectively.

(10x+5y)-(3x+5y)=45-19

7x=26

x=26/7

2*26/7+y=9

y=11/7

Ultimately you get the same answer, both are viable methods, some problems are faster with one method but I recommend mastering both since they are very useful.

4 0
2 years ago
Write an equation for a line parallel and a line perpendicular to the given line
nikitadnepr [17]
The remaining of them is to get the math app can’t do it for me
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3 years ago
If the probability that a person will die in the next year is 613/100,00 What is the
Helen [10]

Answer:

D 99.387%

Step-by-step explanation:

100,000 - 613 = 99,387

99387 / 100,000 is the chance

8 0
3 years ago
Read 2 more answers
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