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choli [55]
2 years ago
6

Someone please help!​

Mathematics
1 answer:
LUCKY_DIMON [66]2 years ago
5 0

Answer:

10.

Step-by-step explanation:

Since 60 is the profit you need to make, you plug in 60 into P(x). So, you get the equation 60=0.3x^{2}+7x-40. The answer to this equation is 10. I think this is the correct answer.

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Simplify to create an equivalent expression<br><br> -y minus -3(-3y+5)
Gemiola [76]

Answer:

8y-15

Step-by-step explanation:

-y-3(-3y+5)

-y+9y-15

8y-15

5 0
3 years ago
Tina’s rectangular living-room floor measures 15 feet by 18 feet. a. How many square feet of carpet will Tina need to cover the
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90 square yards will be needed
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If we buy 20 pickles what is the experimental probability of winning 5 or more tickets
Mrac [35]

Answer:

Pr = 0.66

Step-by-step explanation:

Given

See attachment for complete question

Required

P(x \ge 5)

From the attachment, we have:

S = 2 + 8 + 4+20+21+19+17+5+2+2

S =100 ---- the sample size

Next, we list out all outcomes more than or equal to 5.

i.e.

x \ge 5

5 is represented with the vertical blue rectangle (with frequency 21).

So, the other elements are to the right of frequency 21.

So, we have:

x \ge 5 = 21+19+17+5+2+2

x \ge 5 = 66

The probability is then calculated as:

Pr = \frac{x \ge 5}{S}

This gives

Pr = \frac{66}{100}

Pr = 0.66

8 0
3 years ago
Aidens class is planning a fundraiser. The results show that 3 out of 4 students want to sell candy. If there are 28 students in
Free_Kalibri [48]

Answer:

21 students

Step-by-step explanation:

28÷4=7

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6 0
2 years ago
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So u just do 27*0.45 to get 12.15 and subtract that to get 14.85
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