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marysya [2.9K]
3 years ago
5

Maggie brought $29.00 to the art supply store. She bought a brush, a sketchbook, and a paint set. The brush was 1 3 as much as t

he sketchbook, and the sketchbook cost 1 2 the cost of the paint set. Maggie had $4.00 left over after buying these items.
Mathematics
1 answer:
JulijaS [17]3 years ago
5 0

Answer:

17 dollars

Step-by-step explanation:

If I know what you're trying to ask, then simply multiply 4 by 2, which is 8.

8+4=12.

12-29=17

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Hope this help!!!

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3 years ago
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Evaluate the expression for x=2 and y=4.<br> (x5y?)/(x3y5)
Step2247 [10]

Answer:

(2 x 5 x 5) / (2 x 3 x 4 x 5)

=40/120

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5 0
3 years ago
All 10,000 California students in the beginning of 8th grade are given an entrance exam that will allow them to attend a top aca
lys-0071 [83]

Answer:

1.32% of students have the chance to attend the charter school.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be 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.

This year the mean on the entrance exam was an 82 with a standard deviation of 4.5.

This means that \mu = 82, \sigma = 4.5

a.What is the percentage of students who have the chance to attend the charter school?

Students who achieve a score of 92 or greater are admitted, which means that the proportion is 1 subtracted by the pvalue of Z when X = 92. So

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

Z = \frac{92 - 82}{4.5}

Z = 2.22

Z = 2.22 has a pvalue of 0.9868

1 - 0.9868 = 0.0132

0.0132*100% = 1.32%

1.32% of students have the chance to attend the charter school.

7 0
3 years ago
Solve. <br> 1/2x + 3 &lt; 4x - 7<br><br> A) x &gt; 8/7<br> B) x &lt; -8/7<br> C) x &gt; 20/7
anyanavicka [17]
C would be your answer and here is how you would solve the problem.

5 0
2 years ago
One year the price of wheat was $8.87 the next year the price was $9.60 route is the price per bushel of wheat for each year to
Nostrana [21]
  • <em>I think you mean this right Both are $10.00</em>
8 0
2 years ago
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