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antoniya [11.8K]
1 year ago
5

A cup of coffee contains 100 mg of caffeine, which leaves the body at a continuous rate of 17% per hour.Part A) Write a formula

for the amount, A mg, of caffeine in the body t hours after drinking a cup of coffee.
Mathematics
1 answer:
forsale [732]1 year ago
8 0

SOLUTION:

Step 1:

In this question, we are given the following:

A cup of coffee contains 100 mg of caffeine, which leaves the body at a continuous rate of 17% per hour.

Part A) Write a formula for the amount, A mg, of caffeine in the body t hours after drinking a cup of coffee.

Step 2:

The details of the solution are as follows:



The graph of:

A_o=100e^{-0.17t}

is as follows:

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A principal of $835 is invested in an account at 4% per quarter simple interest which of the following sequences describes the d
netineya [11]
To solve the question we use the compound interest formula which is given by:
A=p(1+r)^(nt)
where:
A=future value
p=principle
r=rate
n=number of terms
t=time
thus plugging in the values in the formula we shall have:
A=835(1+0.04)^(4t)
simplifying this we get the sequence:
A=835(1.040)^(4t)
Thus the answer to the sequence will be:
A=835(1.040)^(4t)

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3 years ago
By selling a stool for $240 a carpenter loses 20%. How much per cent would he gain or lose by selling it for $360?​
zhenek [66]

Answer:

Answer. Step-by-step explanation: By selling it at 360 he would lose 13% because the amount of money lost with 240$ is 48$ (You can find that out by doing 240 x 0.2). If he loses 48$ again when selling it at 360$ he would make 312 dollars.

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8 0
3 years ago
Read 2 more answers
4y-7x=16 solve for y
kompoz [17]
I think the answer would be  x= 4/7 y = +-16/7
4 0
3 years ago
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Please help and first right answer will be marked branliest
lakkis [162]

Answer:

a) 320 students

b) 25 students

Step-by-step explanation:

Number of 18-years old in the survey:

(We add all  frequency points for each line)

0 + 30 + 20 + 60 + 70 + 40 + 60 + 40 + 0 = 320 students

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4 years ago
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30 treadmills : 36 ellipticals
this could be written in a few ways, but i am going to write it as a fraction. since treadmills come first, you put 30/36.

now that you have your fraction you have to find the GCF (greatest common factor) of the two numbers. the GCF is 6, so you have to divide 30 treadmills by 6, and 36 ellipticals by 6.
30/6=5
36/6=6

5/6 or 5:6 is the simplified ratio of treadmills to ellipticals



comment for any questions!!
4 0
4 years ago
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