MATHEMATICS MIDDLE SCHOOL

Complete the equation that is related to the given equation.x – (–6.9) = 42.8

x = 42.8 +

Answers

Answer 1
Answer: x – (–6.9) = 42.8
x + 6.9 = 42.8
x = 35.9

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Convert 15 out of 20 into a decimal

Answers

Simplify 15/20 into 3/4

then 3 divided by 4= 0.75

the answer is 0.75
Howdy there! ;) The answer to your question is 0.75. I got the answer because you divide 15 and 20( 15/20) So simplify if you want to. 15/5=3 20/5=4 equals 3/4 there are 4 25's in a hundred 25,50,75,100 so since 3/4 is three then it would be 0.75.


Hope I helped! :D

For keeping business records every three months of a year Is called a quarter.How many months are equal to three quarters of a year? Explain your answer.

Answers

There are 4 quarters in a year.

What is division?

Division is the process of splitting a number or an amount into equal parts.

Given that, For keeping business records every three months of a year Is called a quarter.

Since, there are 12 months in a year,

And every 3 month is considered as a quarter, then dividing total months by 3 months.

Therefore,

12 / 3 = 4

Hence, there are 4 quarters in a year.

Learn more about division, click;

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the answer is 9 because think of an hour. 15 minutes is a quarter of an 60 minutes/1 hour. 12 months  * 5 = 60 minutes

Liz buys x markers at 90p each and 3 books at 1.20 each the total cost is 13.50Solve to find x

Answers

90p = 0.9
13.5 = 0.9x+3*1.2
0.9x = 13.5-3.6
0.9x = 9.9
x = 11

The sum of two numbers is 68. The smaller number is 16 less than the larger number. What are the numbers?

Answers

Answer:

52

Step-by-step explanation:

Add 16 plus 52 equals 68

What multiple of 7 is a factor of 7

Answers

The answer must be '7' . Because 7 is a multiple of '7' , 7 * 1 = 7 . And 7 is also a factor of '7' because 7 has only two factors 7 and 1.
It only has 2 factors and they are 7*1 just 7 and 1

£2000 is invested in a savings account. Compound interest at 2.1% P.A.How much interest will be paid after two years?

A) £4 B) £5.20 C) £2.44 D) £84.88

Answers

\sf\ 2.1\ percent\ interest\ P.A.\ means\ annually.\ Annually\ means\ every\ year.\n\n The\ question\ requires\ a\ compound\ interest\ formula.\n\n\ The\ formula\ is\n{\boxed{A=P(1+ (r)/(n))^n^t}



\sf\ P\ =\ principal\ amount\ (2000)\n\n r\ =\ annual\ rate\ of\ interest\ (.021)\n\n t\ =\ number\ of\ years\ the\ amount\ is\ deposited\ or\ borrowed\ for\ (2)\n\n A\ =\ amount\ of\ money\ accumulated\ after\ n\ years,\ including\ interest\ (?)\n\n n\ =\ number\ of\ times\ the\ interest\ is\ compounded\ per\ year\ (1)\n\n\n\nA=P(1+ (r)/(n))^n^t\n\nA=2000(1+ (.021)/(1))^2\n\nA=2000(1.021)^2\n\nA=2000(1.042441)\n\n\A=2084.882\n\n\n\ To\ find\ the\ amount\ of\ interest:\n2084.882-2000=84.882=\n\n{\boxed{84.88}



\boxed{\sf\ Answer:\ D}
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