3 years ago

I'm not sure how to solve the systems of equations problem below

Mathematics

1 answer:

Viefleur [7K]3 years ago

3 0

Solve the lower equation first

+12 on each side
7x=51
divide by 7
x=51/7

then use that to solve the upper equation

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Donna has ridden 28 miles of a bike course. The course is 35 miles long. What percentage of the course has Donna ridden so far?

ZanzabumX [31]

Answer:

Use a calculator to divide the two values (small over big) to get 14/35 = 0.4

Now multiply that result by 100 to convert to a percentage

0.4*100 = 40%

he has ridden 40% of the course so

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2 years ago

CHOOSE ONLY 1 TO DO AND PLZ WRITE THE ANSWERS

Naddika [18.5K]

Answer: I chose question number 1.

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3 years ago

How to turn 9/6 into a mixed number

brilliants [131]

You can turn 9/6 into a mixed number by doing it 2 ways:
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3 years ago

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padilas [110]

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3 years ago

In one game, the ratio of three-point baskets to three-point tries for one team was 3:8. If the team scored 27 points from three

nasty-shy [4]

Since we’ve been given a ratio, 3:8, we can convert that into a fraction and form an equation from it:

$\frac{3}{8}$ = $\frac{27/3}{?}$

The reason the numerator on the second fraction is 27/3 is because the team scored 27 points, not 27 baskets.

Simplify (Also replace the ? with an unknown variable):

$\frac{3}{8}$ = $\frac{9}{n}$

Cross multiply:

3*n = 9*8

Simplify:

3n = 72

Divide both sides by 3:

n = 24

The team had 33 three point tries, 9 successes, and 24 fails.

-T.B.

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3 years ago