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Zepler [3.9K]
3 years ago
8

How do you solve these equations using elimination

Mathematics
1 answer:
lara31 [8.8K]3 years ago
5 0
I think this is right
I hope this helps u

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An account earns simple interest. (a) Find the interest earned. (b) Find the
Debora [2.8K]

Answer:

#a. $80

#b. $1680

Step-by-step explanation:

We are given;

  • Amount invested (principal) is $1600
  • Rate of interest is 5%
  • Time = 1 year

We are required to determine the amount of simple interest earned and the amount or balance in the account after 1 year.

#a. Interest earned

To calculate simple interest we use the formula;

I = (PRT) ÷ 100

Where, P is the principal, R is the rate, T is the time and I is the simple interest.

Therefore;

I = (1600 × 5 × 1) ÷ 100

 = $80

Therefore, simple interest earned is $80

#b. Balance of the account (Amount accrued)

We are going to use the formula;

A = P + I , where A is the amount accrued, P is the principal and I is the simple interest earned.

Therefore;

Account balance = $1600 + $80

                            = $1680

Thus, the account balance after 1 year will be $1680

8 0
2 years ago
Jessica can walk 1.5 kilometers in 30 minutes. How long will it take her to walk 2.5 kilometers?
RUDIKE [14]

Answer:

It should be 20minutes at a easy pace

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Last week Missy read for a total of 240 minutes during this time she read 112 pages at this rate how many pages did she read in
LuckyWell [14K]

Answer:

28 pages

Step-by-step explanation:

240 minutes = 4 hours

240 minutes = 112 pages read

You have to divide by 4 the numbers are in each side, it would be like this:

60 minutes = 28 pages read

60 minutes is equal to an hour

1 hour = 28 pages read

Hope this was helpful :)

8 0
3 years ago
What is the fraction for 7.71
igomit [66]
The answer is 771/100 or 7 and 71/100
You divide by 1 but to do that, you must move the decimal so that there are only whole numbers, but if you move the decimal, then you have to do the same for 1 but you move it to the right instead of the left=771./100.
4 0
3 years ago
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You are a volunteer at a physical therapy clinic. a set of stairs you use to help patients is shown with it's dimensions. What i
vazorg [7]
The volume formula is area of base×height. In this case, we are working with rectangles, so the formula is l×w×h. We have to find the volume of each block and add them together. Top rectangle: 12×30×4=1440. Middle rectangle: 30×36×4=4320. Bottom rectangle: 30×60×4=7200. 7200+4320+1440=12960 inches squared.
8 0
3 years ago
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