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wlad13 [49]
3 years ago
15

Shen’s mother gave him $10 to go buy groceries. He picked up a gallon of milk for $3.49, three pounds of oranges that cost $1.14

per pound, and a box of cereal for $3.46. Shen used front-end estimation to determine whether he had enough money for the groceries. How much did he estimate the total cost would be?
He estimated that he had about $7 worth of groceries.
He estimated that he had about $9 worth of groceries.
He estimated that he had about $10.30 worth of groceries.
He estimated that he had about $10.40 worth of groceries.
Mathematics
1 answer:
garik1379 [7]3 years ago
7 0

Answer:

He estimated that he had about $10.40 worth of groceries.

Step-by-step explanation:

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The numbers 0.23350 has how many significant figures?
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Since, in a decimal number all the trailing zeros are significant.

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when jane uses her calling card overseas, the cost of a phone call is .75 for the first three minutes and. 12 for each additiona
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3 years ago
The price p (in dollars) and the demand X for a particular clock radio are related by the equation X = 3000 -10p. Find and answe
alukav5142 [94]

The price p based on the equation given is p = 3000 - 0.1x.

<h3>How to express the price?</h3>

The equation given in the question is x = 3000 - 10p. The price(p) will be:

x = 3000 - 10p.

Make p the subject of the formula

x + 10p = 3000

10p = 3000 - x

p = (3000 - x)/10

p = 3000 - 0.1x

The revenue will be price multiplied by quantity. This will be:

= (3000 - 0.1x) × x

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The marginal revenue will be calculated after differentiating. This will be:

= 3000x - 0.1x²

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The demand which is the quantity based on the information will be:

3000 - 0.2x = 0

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Learn more about demand on:

brainly.com/question/1245771

#SPJ1

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