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slava [35]
3 years ago
15

Hannah received $30 for her birthday and bought 3 shirts that were all the same price. If she had $9 left over, which equation s

hows how to determine how much each shirt cost?
Question 6 options:

3x = 39


3x = 30


x + 9 = 30


3x + 9 = 30
Mathematics
2 answers:
Kaylis [27]3 years ago
7 0
D.3x+9=30 because x is the price of the three shirts which you times how many you bought and the price of one and add nine
Natasha2012 [34]3 years ago
5 0
Money spent + money left over = total money

money spent + 9 = 30

We don't know the price of each shirt, so let x = price of 1 shirt.
Then, 3 shirts cost 3 times as much as x, or 3x.
She spent 3x.

3x + 9 = 30
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244

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Answer:

(0.102, -0.062)

Step-by-step explanation:

sample size in 2018 = n1 = 216

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number of people who went for another degree in 2017 = x2 = 46

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p2 = x2/n2 = 0.23

At 95% confidence level, z critical = 1.96

now we have to solve for the confidence interval =

<h2> p1 -p2 ± z*\sqrt{((1-p1)*p1)/n1 + ((1-p2)*p2/n2}</h2>

0.25 -0.23 ± 1.96*\sqrt{((1 - 0.25) * 0.25)/216 + ((1 - 0.23) *0.23/200}

= 0.02 ± 1.96 * 0.042

= 0.02 + 0.082 = <u>0.102</u>

= 0.02 - 0.082 = <u>-0.062</u>

<u>There is 95% confidence that there is a difference that lies between  - 0.062 and 0.102 on the proportion of students who continued their education in the years, 2017 and 2018.</u>

<u></u>

<u>There is no significant difference between the two.</u>

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Which construction is illustrated above ?
RSB [31]

Answer:

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Read 2 more answers
Which is equivalent to 5(a + 6)?<br><br> 1. a+30<br><br> 2. 5a-30<br><br> 3. 5a+6<br><br> 4. 5a+30
Afina-wow [57]

Answer:  the answer is number four.

Step-by-step explanation:

<h2>because when you take five multiply by A (5*a) you will get 5a and when you take five multiply by six (5*6) you will get 30 and there is positive sign so the plus (+) stays the same and your will be (5a+30) that is your answer. good luck.</h2>
5 0
3 years ago
A laptop is sold for $1274 after a discount of 9%.
chubhunter [2.5K]

Answer:

SP = 1274

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1274 = MP (100 - 9) / 100

1) MP = 1400

i) After 5% discount = 1400 x 0.95 = 1330

After 4% discount = 1330 x 0.96 = 1276.80

3 0
3 years ago
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