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valina [46]
3 years ago
9

Carmen makes t-shirts and sells them online. She makes a profit of $5.00 per shirt but she has to pay $10.00 per day to PayPal f

or using the app. Her goal is to make at least $425 in one day. Write an inequality that models this scenario and solve it. You must show your work to receive credit.
Mathematics
2 answers:
igomit [66]3 years ago
8 0

425/5.00=85 shirts add 2 more shirts to cancel out the paypal fee!

Marina CMI [18]3 years ago
4 0

5t-10>425 is the inequality used to solve this problem.  If we add 10 to 425 we get 435, and then divide 435 by 5 to get 87.

t>87

87 t-shirts or more!

Please mark brainliest

Hope this helps!


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Heights of Women. Heights of adult women are distributed normally with a mean of 162 centimeters and a standard deviation of 8 c
Bogdan [553]

Answer:

a) 6.68% of heights less than 150 centimeters

b) 58.65% of heights between 160 centimeters and 180 centimeters

Step-by-step explanation:

When the distribution is normal, we use 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 question, we have that:

\mu = 162, \sigma = 8

a) The percentage of heights less than 150 centimeters

We have to find the pvalue of Z when X = 150. So

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

Z = \frac{150 - 162}{8}

Z = -1.5

Z = -1.5 has a pvalue of 0.0668

6.68% of heights less than 150 centimeters

b) The percentage of heights between 160 centimeters and 180 centimeters

We have to find the pvalue of Z when X = 180 subtracted by the pvalue of Z when X = 160.

X = 180

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

Z = \frac{180 - 162}{8}

Z = 2.25

Z = 2.25 has a pvalue of 0.9878

X = 160

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

Z = \frac{160 - 162}{8}

Z = -0.25

Z = -0.25 has a pvalue of 0.4013

0.9878 - 0.4013 = 0.5865

58.65% of heights between 160 centimeters and 180 centimeters

7 0
3 years ago
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tatuchka [14]

Answer: the answer is C

Step-by-step explanation: I hope this helps a little :)

3 0
2 years ago
The square root of 1.85
WARRIOR [948]

Answer:

around 1.36

Step-by-step explanation:

4 0
2 years ago
How to write 899,501 in expanded form
adell [148]
800,000+90,000+9,000+500+1
5 0
3 years ago
Read 2 more answers
Please solve number 11:(​
MrRa [10]

Answer:

Market price $400

Cost price $300

Step-by-step explanation:

MP: market price

CP: cost price

1. (MP x 0.9) - CP = 60

CP = 0.9MP - 60

2. MP - CP = 100

CP = MP - 100

0.9MP - 60 = MP - 100

MP - 0.9MP = 100 - 60

0.1MP = 40

MP = 400

Cost price = MP - 100 = 400 - 100 = 300

3 0
2 years ago
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