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faust18 [17]
2 years ago
14

Marco puts his coins into stacks. Each stack has 10 coins.

Mathematics
1 answer:
Harrizon [31]2 years ago
3 0

Answer:

Marco has $57.50 in total.

Step-by-step explanation:

17 x 10 = 170 quarters

170 x 0.25 = $42.50

11 x 10 = 110 dimes

110 x 0.10 = $11.00

8 x 10 = 80 nickels

80 x 0.05 = $4.00

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Suppose that the height (in centimeters) of a candle is a linear function of the amount of time (in hours) it has been burning.
andrey2020 [161]

Answer:

Hey! The answer is 25,4 centimeters.

Step-by-step explanation:

In a linear function you can use y=mx+n

So if x = hours and y= height.

You know that

\left \{ {{27,8=11m +n} \atop {24,8=26m +n}} \right.

So:

If you multiply (24,8=26m +n) x-1

It is: -24,8 = -26m -n

Adding up the other equation

-24,8 = -26m -n

<u>27,8 = 11m + n</u>

<u>3 = -15m</u>

<u>m= -0,2</u>

So

27,8 = 11 x 0,2 + n

27,8 = -2,2 + n

30 = n

This results that te linear function for this equation is:

y = -0,2x + 30

The answer is

y=23(-0,2) + 30

y=-4,6+30

y=25,4

8 0
4 years ago
Please help!!
Advocard [28]

from the given answers there is no answer

m=15

n=19

5 0
3 years ago
How to multiply a whole number and a mixed fraction?
Ugo [173]
Convert the mixed number into a decimal and multiply on a calculator (or by hand).
4 0
3 years ago
3^x = 27^a+b and a^2-b^2/(a-b)=5 What is x?
Colt1911 [192]
Your answer should be 3x-x+2=4 hope this helps..
4 0
3 years ago
If you invest $500 at 4% interest,compounded annually,how much is in the account at the end of six years?
Genrish500 [490]
So, we'll find out how much interest this person will have in 6 years and then add it to the original deposit. To do this we will multiply all the factors:

500 x 0.04 x 6 = 120.
This means they'll have made $120 in interest in 6 years if they don't touch the money. We will add the 120 to the 500.
500+120= 620

They will have a total of $620 in their account after 6 years.




3 0
3 years ago
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