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spayn [35]
3 years ago
9

Which shows a correct order to solve this story problem? Maxine had to pay $1.46 in sales tax on her purchases. She bought 3 bar

s of soap for $1.50 each, a bottle of shampoo for $5.75, and a bottle of conditioner for $5.95. How much did Maxine spend? A. Step 1: Add the price of a bar of soap to the price of the bottle of shampoo. Step 2: Multiply that total by 3. Step 3: Add the price of the bottle of conditioner to that total. Step 4: Add the tax to the final total for all the items. B. Step 1: Calculate the total price of the 3 bars of soap. Step 2: Calculate the total price of the shampoo and the conditioner. Step 3: Add the amount from Step 2 to the amount from Step 1. Step 4: Add the tax to the final total for all the items. C. Step 1: Add the price of a bar of soap and the bottle of shampoo. Step 2: Multiply that total by 3. Step 3: Add $5.95 to the total amount for soap and shampoo from Step 2. Step 4: Add the tax to the final total for all the items.
Mathematics
1 answer:
romanna [79]3 years ago
4 0
Choice B would be the correct answer. I hope that helps! :D
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Scores on an exam follow an approximately Normal distribution with a mean of 76.4 and a standard deviation of 6.1 points. What p
klasskru [66]

Answer:

99.89% of students scored below 95 points.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 76.4, \sigma = 6.1

What percent of students scored below 95 points?

This is the pvalue of Z when X = 95. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{95 - 76.4}{6.1}

Z = 3.05

Z = 3.05 has a pvalue of 0.9989.

99.89% of students scored below 95 points.

5 0
3 years ago
Is it True or false??
Alex17521 [72]

Answer:

I think it's false.

Step-by-step explanation:

7 0
3 years ago
Mikey has two mice that were about the same age and weight Mikey fed each of the 2 mice a different feed for a month. He measure
Nadusha1986 [10]
The following is the rest of the question:
------------------------------------------------------
Mikey's results showed that although both mice gained weight over the month, mouse 2 gained more weight than mouse 1.Which graph below best shows these results?
The complete figure is attached
=========================================================
Solution:
---------------
Graph (1)⇒⇒⇒ mouse 2 has constant weight and mouse 1 gained weight

Graph (3)⇒⇒⇒ mouse 2 has did not gain weight and mouse 1 gained weight

∴ Graph (1) and (3) are incorrect because both mice gained weight .

Graph (4) is incorrect because mouse 2 gained more weight than mouse 1

So, the correct answer is graph (2)







5 0
3 years ago
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Assume that y varies directly with x. If y = 18 when x = -3, find x when y = 6.
ArbitrLikvidat [17]

Answer:

x=-1

Step-by-step explanation:

y=kx

18=-3*k

k=-6

6=x*-6

x=-1

3 0
2 years ago
Read 2 more answers
Question 5 of 10
Stells [14]

Answer:

A. is the correct answer tnx to the points

8 0
1 year ago
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