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melisa1 [442]
2 years ago
13

A party rental company has chairs and tables for rent. The total cost to rent 2 chairs and 12 tables is $83. The total cost to r

ent 5
chairs and 3 tables is $32. What is the cost to rent each chair and each table?
Cost to rent each chair: sl
Cost to rent each table: s]
Submit Assignment
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2020 McGraw-Hill Education All Right
Mathematics
1 answer:
vfiekz [6]2 years ago
6 0

Answer:

Cost to rent each chair: $2.50

Cost to rent each table: $6.50

Step-by-step explanation:

2x+12y=83

5x+3y=32

x=2.5

y=6.5

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An English professor assigns letter grades on a test according to the following scheme. A: Top 14% of scores B: Scores below the
NeX [460]

Answer:

Grades between 62 and 64 result in a D grade.

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 = 71.9, \sigma = 7.8

Find the numerical limits for a D grade.

D: Scores below the top 84% and above the bottom 10%

So below the 100-84 = 16th percentile and above the 10th percentile.

16th percentile:

This is the value of X when Z has a pvalue of 0.16. So X when Z = -0.995.

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

-0.995 = \frac{X - 71.9}{7.8}

X - 71.9 = -0.995*7.8

X = 64

10th percentile:

This is the value of X when Z has a pvalue of 0.1. So X when Z = -1.28.

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

-1.28 = \frac{X - 71.9}{7.8}

X - 71.9 = -1.28*7.8

X = 62

Grades between 62 and 64 result in a D grade.

6 0
3 years ago
Here is an expression: 2 + 3t
Dima020 [189]
2+3t
When t is 1
2+3(1)
2+3
5

When t is 4
2+3(4)
2+12
14
3 0
2 years ago
Read 2 more answers
One card from a deck of cards Is selected, it's is replaced, and another card is chosen. What is the probability that the first
Elis [28]

Answer:

1/ 8

Step-by-step explanation:

Given that:

Number of red cards in deck = 26

Number of diamonds in deck = 13

Number of cards in deck = 52

Recall :

Probability = required outcome / Total possible outcomes

Probability of choosing a red :

P(red) = 26 / 52 = 1/2

With replacement :

Probability of diamond :

P(diamond) = 13 / 52 = 1/4

Hence,

Probability of first card red, then second card diamond equals

P(red) * P(diamond)

1/2 * 1/4

= 1/8

6 0
2 years ago
a deli sells a sandwich spread for 6.40 per pound. how much do you have to pay for 24 ounces of the spread
rjkz [21]
In the given question the most important part is convert ounce to pound and then the problem becomes easy. We already know
1 ounce = 0.0625 pounds
Then
24 ounce = 0.0625 * 24 pounds
                 = 1.5 pounds
Now let us focus on the problem in hand and the information's that are already given in the question.
The cost per pound of the sandwich sold by Deli = 6.40
Then
The cost of 1.5 pound of sandwich sold by Deli = 6.40 * 1.5
                                                                             = 9.60
So the cost of 24 ounces of spread is 9.60.
3 0
3 years ago
Read 2 more answers
What are the answers
Shalnov [3]
Slope formula: 
y2-y1
-------
x2-x1
    48)
1-3       -2
----    = ----
-2-4     -6

So the slope of MN is 1/3
5 0
3 years ago
Read 2 more answers
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