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stira [4]
3 years ago
11

Mary bought these art supplies: 5 paint brushes for $1.29 each, 10 dowel rods for $1.49 each, 2 jars of paste for $1.25 each, an

d 4 canvases for $6.00 each. How much change did she get from $60? A.$8.25 B.$9.35 C.$10.45 D.$12.15
Mathematics
2 answers:
romanna [79]3 years ago
7 0

Answer:

D. 12.15

Step-by-step explanation:

If you add up all the numbers, you get $47.85. so if you subtract that from 60, you get 12.15

Rainbow [258]3 years ago
5 0
The answer is D.$12.15

5(1.29)+10(1.49)+2(1.25)+4(6.00) =$47.85
$60-$47.85 = $12.15
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3 years ago
The manager of a supermarket wants to obtain information about the proportion of customers who dislike a new policy on cashing c
alex41 [277]

Answer:

n = 61 costumers

Step-by-step explanation:

For calculating the number of costumers he should sample we use the next equation:

n = \frac{z_{1-\alpha/2}^{2}p(1-p)}{E^{2} }

                          Where E is the error that we are prepared to accept, in this  case E = 0.15

How we don't know the value of p, we can estimate it like p = 0.5

∝ = 1-0.98 = 0.02

1-∝/2 = 0.99

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n = \frac{(2.33^{2})(0.5)(1-0.5)}{0.15^{2} }

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4 0
3 years ago
For the first 8 months at his new job, James gets
Vikentia [17]

James receives a pay increase of 100% per month and has a starting salary of $500.

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

Let b represent the rate of pay increase and a represent the initial pay.

Let us assume that he had received 128000 after the 8 months. hence:

128000 = ab⁸   (1)

Also in the 10th month, he had received 512000, hence:

512000 = ab¹⁰    (2)

From the both equations:

a = 500, b = 2

rate of increase = 200% - 100% = 100%

James receives a pay increase of 100% per month and has a starting salary of $500.

Find out more on equation at: brainly.com/question/2972832

#SPJ1

4 0
2 years ago
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