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2 years ago

15

A recipe calls for 2 tsp of butter. Melinda wants to make 40% more servings than the recipe makes. Which expression represents h

ow many teaspoons of butter Melinda should use?
A. 0.6 * 2
B. 1.6 * 2
C. 0.4 * 2
D. 1.4 * 2

1 answer:

zubka84 [21]2 years ago

4 0

The answer is D. 1.4=140% She needs the necessary amount + 40% .

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17. (a) The formula with CP subject is $CP=\frac{SP}{1.1}$

(b) The Cost Price of item without GST is $59.50

(c) The GST of item is $5.95

Step-by-step explanation:

Given formula is;

SP = 1.1 * CP

SP = Selling price

CP = Cost price

(a) Rearrange the formula to make CP the subject;

SP = 1.1 * CP

Dividing both sides by 1.1

$\frac{SP}{1.1}=\frac{1.1*CP}{1.1}\\\\\frac{SP}{1.1}=CP\\\\CP=\frac{SP}{1.1}$

The formula with CP subject is $CP=\frac{SP}{1.1}$

(b) Use your formula from (a) to find the Cost Price of an item without GST if the selling price is $65.45

SP = $65.45

$CP=\frac{65.45}{1.1}\\\\CP=\$59.50$

The Cost Price of item without GST is $59.50

(c) Calculate the amount of GST on an item whose selling price is $65.45.

GST = 10% of CP

GST = $\frac{10}{100}*CP$

GST = 0.1CP

From part (b)

CP = $59.50

GST = 0.1 * 59.50

GST = $5.95

The GST of item is $5.95

Keywords: percentage, multiplication

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2 years ago

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Answer:

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Meaning: If the company sells -5 shirts, they would make a profit of -150 dollars. This interpretation of loss in the context of the problem

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Meaning: If the company sells 7 shirts, they would make a profit of -30 dollars. This interpretation of loss in the context of the problem

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Meaning: If the company sells 10.5 shirts, they would make a profit of 5 dollars. This interpretation of profit in the context of the problem

Step-by-step explanation:

Given

$f(x) = 10x - 100$

Required

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$f(7) = -30$

$f(10.5) = 10 * 10.5 - 100$

$f(10.5) = 105 - 100$

$f(10.5) = 5$

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C, or 5000(0.9)t is correct.

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