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Solnce55 [7]
2 years ago
11

The length of the side of square A is half the length of the side of square B. What is the

Mathematics
1 answer:
stepan [7]2 years ago
5 0

Answer:

\frac{1}{2}

Step-by-step explanation:

If the length of one side of A is a, then B is twice that of A, so the length of one side is 2a. The circumference of A is 4a, B is 8a

B : A = 8a : 4a = 2 : 1

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Mary invests £12,000 in a savings account the account pays 1.5% compound interest per year work out the value of her investment
Lesechka [4]

Answer:

The value of Mary's investment after two years = £12362.7

Step-by-step explanation:

P = Principal / initial amount

R = rate of interest per cent per year

T = number of years

A = final amount at the end of T years

Then:

A = P*(1 + R/100)^2

In our example:

P = £12000

R = 1.5 per cent per year

T = 2 years

Thus:

A = 12000*(1 + 1.5/100)^2

  = 12000*(1 + 0.015)^2

  = 12000*(1.015)^2

   = 12000*(1.030225)

   = 12362.7

Value of investment after two years = £12362.7

5 0
3 years ago
Please help! what equation best models this data?
kolezko [41]

Answer:

P = 309.35 + 2.31t

Step-by-step explanation:

The relation between the population of the USA and the time in years after 2010 will be linear as the increase in population is constant for every year since 2010 which is  2.31 million.

So, we can model the population P in million as a function of time(t) in years since 2010 as

P = 309.35 + 2.31t  ....... (1)

Now, for t = 0 i.e. in the year 2010, the population will be obtained from equation (1) to be 309.35 million.

(Answer)

8 0
3 years ago
If a bookshelf is 28 1/8 inches long,how many 1 7/8 inch thick books will it hold?
kotegsom [21]
I believe the correct answer is 15, because 15/8 x 15/1= 225/8 and when you simplify that you get 28 with 1/8 left over.
7 0
4 years ago
Read 2 more answers
The measures of 13 angles of a 14-gon add up to 2014. Find the fourteenth angle measure
lisabon 2012 [21]

Answer:

154.92

Step-by-step explanation:

2014/13=154.92

8 0
3 years ago
HELLER HELLPPPP MEHHHH
ivolga24 [154]

Answer:

I think the answer is D.

Step-by-step explanation:

Five plus two times a number means 5 + 2n vice versa.

4 0
3 years ago
Read 2 more answers
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