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MissTica
3 years ago
7

Work out the percentage change when a price of £70 is decreased to £49 ​

Mathematics
1 answer:
Monica [59]3 years ago
5 0

Answer:

30% decrease in price

Step-by-step explanation:

Since 70-49=21, we know that the price decreased by 30 pounds. The formula to find a percentage decrease is that you should then divide the original number(70) by 21(that equals 0.3!) 0.3 as a percentage would then be 30%, so the answer is there is a 30% decrease in price.

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Solve, using the substitution method.
ss7ja [257]

Answer:

(-6,-5)

Step-by-step explanation:

X+y=-11

solve for x

x=-11-y

substiute x value into 2nd equation

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2(-11-y)-3y=3

-22-2y-3y=3

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substitute -5 for y in either equation to find x

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8 0
3 years ago
Combine the radicals. 3√5-8√5+2√5
weeeeeb [17]

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=============================================

Explanation:

Let x = \sqrt{5}

Replace all the root 5 terms with x and we go from

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Meaning that,

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7 0
3 years ago
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IgorLugansk [536]

Answer:

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4 0
3 years ago
The quotient of 45 and 4 2/5? What is the expression for that ?
Andru [333]

Answer:

Expression: 45 ÷ 4\frac{2}{5}  

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