3 years ago

Simplify this equation. 20 points i think?

Mathematics

1 answer:

Semmy [17]3 years ago

5 0

Answer:

Hey buddy, here is your answer. Hope it helps you.

Step-by-step explanation:

3/5x+19-3/20x-7

First convert the fractions so they have a common denominator and rearrange

12/20x-3/20x+19-7

9/20x+12

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The art club held a car wash on Saturday and Sunday. They washed a total of 50 cars. If they washed 30% of the cars on Sunday, h

o-na [289]

Answer:

If I did my math correctly, They washed 15 cars on Sunday.

Step-by-step explanation:

50 cars = 100%

Therefore 1 car would be 2% because 50 is half of 100.

So because 30% would be 2 times the amount of cars, we divide 30 by 2, giving us 30% = 15 cars on Sunday

With this information, we can take away 15 from 50 giving us 35 cars which is equal to 70% on Saturday

Here is some extra data:

10% = 5 cars

20% = 10 cars

30% = 15 cars

40% = 20 cars

50% = 25 cars

60% = 30 cars

70% = 35 cars

80% = 40 cars

90% = 45 cars

100% = 50%

Basically, every 10% is +5 cars

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2 years ago

Sally drives 66 miles in 3 hours and Molly drives 72 miles in 4 hours. What is the difference between their average speed, in mi

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Answer: A

Step-by-step explanation:

Sally: 66/3=22

Molly: 72/4=18

22-18=4

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3 years ago

A rotation on the origin counterclockwise goes to the right. true or false

marta [7]

Answer:

false

Step-by-step explanation:

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3 years ago

Solve the compound inequality 3x + 4 ≤ 7

Ierofanga [76]

Answer:

x ≤ 1

Step-by-step explanation:

3x+4≤ 7

3x + 4 - 4 ≤ 7 - 4

3x≤3

x ≤ 1

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3 years ago

1st Step: 3 - 4x - 7 = -24 2nd Step: 3- 7 - 4x = -24 What property justifies the 2nd step

gizmo_the_mogwai [7]

Answer:

the subtraction

Step-by-step explanation:

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