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3 years ago

15 + (5-x)/x=30 solve for x

Mathematics

1 answer:

elixir [45]3 years ago

8 0

Answer:

5/16

Step-by-step explanation:

15+(5-x)/x=30

1) Subtract 15 from both sides:

(5-x)/x=15

2) Multiply both sides by x:

5-x=15x

3) Add x to both sides:

16x=5

4) Divide both sides by 16:

x=5/16

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Tresset [83]

Answer:

(-5, 2)

Step-by-step explanation:

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3 years ago

There are 1200 students at a school and 390 of them are boys if each classroom holds 30 students how many classrooms are needed

vodomira [7]

Answer:

40 classrooms

Step-by-step explanation:

Divide 1200 by 30.

1200÷30=40

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1200-390= 810

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3 years ago

75 miles in 3 hours ; 140 miles in 4 hours

weeeeeb [17]

Answer:

Step-by-step explanation:

75:3=25:1

140:4=45:1

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3 years ago

Andrea jumped 5 times every 45 minutes. At that rate, how many

elena55 [62]

Answer:

6 times

Step-by-step explanation:

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