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Ivan
3 years ago
9

How does dividing the coins into equal groups help solve the problem

Mathematics
1 answer:
enot [183]3 years ago
3 0
It helps by grouping them up into equal groups by counting how many groups there are
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£980 is divided between Caroline, Sarah & Gavyn so that Caroline gets twice as much as Sarah, and Sarah gets three times as
Nitella [24]

Sarah has received £ 294

<u><em>Solution:</em></u>

Given that £980 is divided between Caroline, Sarah & Gavyn

Let "c" be the amount received by caroline

Let "s" be the amount received by sarah

Let "g" be the amount received by gavyn

<em><u>Caroline gets twice as much as Sarah</u></em>

amount received by caroline = twice as much as Sarah

amount received by caroline = 2(amount received by sarah)

c = 2s ---- eqn 1

<em><u>Sarah gets three times as much as Gavyn</u></em>

amount received by sarah = three times as much as Gavyn

amount received by sarah = 3(amount received by gavyn)

s = 3g ------- eqn 2

Given that total amount is 980

c + s + g = 980 --- eqn 3

<em><u>Let us solve eqn 1, 2, 3 to get values of "c" "s" "g"</u></em>

From eqn 2,

g = \frac{s}{3}  --- eqn 4

Substitute eqn 1 and eqn 4 in eqn 3

2s + s + \frac{s}{3} = 980\\\\\frac{6s + 3s + s}{3} = 980\\\\6s + 3s + s = 980 \times 3\\\\10s = 2940\\\\s = 294

Thus sarah has received £ 294

7 0
3 years ago
Help me plsss thanks
Andrews [41]

Answer:

Option A is correct answer

4 0
3 years ago
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2x + 3y = 12<br> Complete the missing value in the solution to the equation.
Alja [10]

Answer:

x= 6- 3y/2            y= 4- 2x/3

Step-by-step explanation:

8 0
3 years ago
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(3x+2)(2x-7) answer?
mash [69]
Answer: 6x squared minus 17x minus 14
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3. A rectangular sheet of paper is folded diagonally from A to C. What is the length of side BD?
Kipish [7]
If AD is a diagonal and the length is 24 BD is given by Pythagoras √26²-24²=√676-576=√100=10 answer A.
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3 years ago
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