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Afina-wow [57]
3 years ago
13

Shawn won an $18 gift card to a local Mexican restaurant. He must spend more than the value of the gift card when he redeems it.

Burritos cost $6 each, and tacos cost $2 each. Use the 5 steps process above to solve this inequality.
Mathematics
2 answers:
KATRIN_1 [288]3 years ago
7 0
What are the 5 step process shown
Harrizon [31]3 years ago
6 0

Answer:

6x+2y>18

Step-by-step explanation:

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Sue baked 40 cookies and decorated 35% of them. Molly baked 50 cookies and put icing on 30% of them. Which girl iced more cupcak
anyanavicka [17]

Answer:

Molly with 15 cookies decorated

Step-by-step explanation:

Turn percentage into decimals.

35%=.35

30%=.30

Sue baked 40 and decorated 35% (40*.35=14)

Molly baked 50 and decorated 30% (50*.30=15)

3 0
3 years ago
Evaluate the expression. 7 x (6 - 3)<br><br> 21<br> 39<br> 46<br> 63
Vlad1618 [11]

Answer:

It's 21

Step-by-step explanation:

7(6−3)

=(7)(3)

=21

4 0
3 years ago
Read 2 more answers
Assume the average height for American women is 64 inches with a standard deviation of 2 inches. A sorority on campus wonders if
satela [25.4K]

Answer:

a) s = 0.4

b) Z = 2.5

c) 99th percentile.

d) The larger sample size would lead to a smaller margin of error, which would lead to a higher z-score and a increased percentile.

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

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 z-score 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 p-value, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

Assume the average height for American women is 64 inches with a standard deviation of 2 inches

This means that \mu = 64, \sigma = 2

A) Calculate the standard error for the distribution of means.

Sample of 25 means that n = 25, so s = \frac{2}{\sqrt{25}} = 0.4.

B) Calculate the z statistic for the sorority group.

Sample mean of 65 means that X = 65.

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

By the Central Limit Theorem

Z = \frac{X - \mu}{0.4}

Z = \frac{65 - 64}{0.4}

Z = 2.5

C) What is the approximate percentile for this sample? Enter as a whole number.

Z = 2.5 has a p-value of 0.9938, so 0.99*100 = 99th percentile.

D) If the sorority actually had 36 members (still with an average of 65 inches), would you expect the percentile value to increase or decrease? why?

The larger sample size would lead to a smaller margin of error, which would lead to a higher z-score and a increased percentile.

3 0
3 years ago
$800 deposit over 10 years with an interest rate of 2%
TiliK225 [7]

Answer:

the interest is 960.

Step-by-step explanation:

the formula: I=prt    i=interest p= pricipal [the money you start with]

r= rate t= time

I=?                                                     I= 800 (0.02) (10)

P= $800                                           I= 160+ 800 {because $160 is added}

R= 2% --> 0.02 [as a decimal]         I= $960

T= 10 years

8 0
3 years ago
I need help with these 2 questions.
Usimov [2.4K]
The first one is 32m^15n^10
The second one is:
(h^12/h^4)^5
(h^6/h)^5
h^30/h^5
h^25/h

Hope this helps :)
3 0
3 years ago
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