What is $45 with a markup of 57%

Mathematics

1 answer:

Marrrta [24]3 years ago

5 0

45/100 x 57 + 45 = $70.65

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Elvira makes money to buy decorations for the cafeteria by selling little bags of chips in the snack bar. If each bag costs $0.3

azamat

Answer:

Step-by-step explanation:

.90-.35=.55

200/.55=364 bags i think

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3 years ago

A doctor prescribes a 300-mg antibiotic tablet to be taken every eight hours. Just before each tablet is taken, 20% of the drug

professor190 [17]

Answer:

So after the second tablet there is 360-mg of drug in the body.

So after the third tablet there is 372-mg of drug in the body.

Step-by-step explanation:

We know that a doctor prescribes a 300-mg antibiotic tablet to be taken every eight hours. Just before each tablet is taken, 20% of the drug remains in the body.

We know that 20%=0.2.

We conclude that after the first pill, 300mg of the drug is in the body.

We have the following formula, to calculate how much mg of the drug is in the body after the second tablet:

$300+20\%\cdot 300=300+0.2\cdot 300=300+60=360$

So after the second tablet there is 360-mg of drug in the body.

We have the following formula, to calculate how much mg of the drug is in the body after the third tablet:

$300+20\%\cdot 360=300+0.2\cdot 360=300+72=372$

So after the third tablet there is 372-mg of drug in the body.

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4 years ago

A worker can do a job in 5 hours, and his student can do the same job in 8 hours. What part of the work is left to finish after

Vlad1618 [11]

Answer: 13/20

Think: How much can each of them do In 1 Hour (1/5 and 1/8) Then add those two together. Then multiply the sum by two. Finally Simplify the answer of 26/40 into 13/20

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3 years ago

Read 2 more answers

Solve 6= 1/5<br> the solution is t=?

zhannawk [14.2K]

Answer:

there is no t in the equation

Step-by-step explanation:

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3 years ago

X + 23 = −4

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