4 years ago

Explain why a change from 20 to 40 is a 100% increase but a change from 40 to 20 is a 50% decrease.

1 answer:

azamat4 years ago

7 0

It has to do with the number you start out with. Going from 20 to 40 involves adding the entirety of the initial amount, whereas going from 40 to 20 involves subtracting only half of the initial amount.

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Manny and Susan have an egg carton full of eggs to use for their science project.

scoray [572]

Answer:

5/6

Step-by-step explanation:

1/3 + 1/2 is a simple addition fraction problem.

You'd find the LCM (lowest common denominator) which is 6. First, we'll take 1/3 which the denominator becomes 6. You see one side has been basically multiplied by 2, so you'd do it to both sides, giving us 2/6. Next, we do the same thing with 1/2. 2 -> 6 1 -> 3. 3/6. So finally, we have 3/6 + 2/6, which is 5/6.

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3 years ago

in the lunch room there were 100 chocolate milk cartons at lunch when lunch was over 88 had been purchased

ratelena [41]

Answer:

12 left over 100-88=12

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3 years ago

One week a business sold 40 shirts. White ones cost $4.95, and the printed ones cost 7.95. In al $282 worth of shirts were sold.

Tanya [424]

Answer:

12 white 28 printed

Step-by-step explanation:

x = white y = printed

x + y = 40————(1)

4.95x + 7.95y = 282————(2)

Solve for x using 1st equation

x = 40 - y Plug in for x using 2nd equation

4.95(40 - y) + 7.95y = 282 Solve for y

198 - 4.95y + 7.95y = 282

3y = 84

y = 28 Plug in for y using 1st equation

x + (28) = 40 Solve for x

x = 12

I hope this helped and please mark me as brainliest!

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garri49 [273]

Probability is 0/12 since there are no blue lollipops in the bag.

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3 years ago

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There are 72 fish in an aquarium. 1/6 of them are angelfish and the rest are mackerals. When more angelfish are placed in the aq

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3 years ago