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Dvinal [7]
2 years ago
13

I need ANSWERS for 13-14 please

Mathematics
1 answer:
inna [77]2 years ago
7 0

13.

230 per hour. multiply 230 by the number of hours to find total posters.

The equation is Total = 230 x hours written as T = 230x, where x is the number of hours.

you have the total, so replace t with the value and solve for x:

1265 = 230x

Divide both sides by 230:

x = 1265 / 230

x = 5.5 hours.

14.

Mean is the average. To find the average, add the four scores together and divide by 4.

The expression is Mean = ( score 1 + score 2 + score 3 + score 4)/4

Replace what is known:

20 = (25 + 15 + 18 + p)/4

Simpligy:

20 = (58 +p) /4

Multiply both sides by 4:

80 = 58 + p

Subtract 58 from both sides:

p = 80 - 58

p = 22

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MrRa [10]

Answer:

SAS

Step-by-step explanation:

Hope I helped!!

6 0
2 years ago
A used book store buys a hardback book for $1.50 and then sells it for $5. Over time, the store sells the same number of books i
dybincka [34]

A used book store buys a hardback book for $1.50 and then sells it for $5. Over time, the store sells the same number of books it buys. The store manager can use the equation P(x)=5x−1.5x to determine the store's profit, P(x), where x is the number of books that the store sells. Which statement about the book store is true based on the profit equation?

Cost Price of book, C.P.=$1.50

Selling Price of book, S.P.=$5

PROFIT=S.P. -C.P.

So, Profit=$5-$1.50=$3.50

So, Profit=$3.50 on each book

Or, we are given P(x)= 5x-1.50x

Or, P(x)=3.50x

For each book, we must divide the profit P(x) by x, that is, number of books

\frac{P(x)}{x}=\frac{3.5x}{x}

\frac{P(x)}{x}=\frac{3.5*1}{1}

\frac{P(x)}{x}=3.5

So, Profit for each book sold is $3.50

Answer:Option C

8 0
3 years ago
X - 7 = 10 2) 11 + p = 31
ycow [4]

Answer:

x=17 p=20

Step-by-step explanation:

7 0
3 years ago
You are given: Students must take at least 2 courses out of Art, History, and Science. 60% of the students take Art. 80% of the
Eva8 [605]

Answer:

0.10 or 10%

Step-by-step explanation:

Since each student must take at least 2 courses, if no student took all three courses, the sum of the percentages would total 200% (counting each student twice). Therefore, the proportion of students taking all three courses is the difference between the sum of all percentages and 200%:

P(3) = 60\%+80\%+70\%-200\%\\P(3) = 10\%

0.10 or 10% of the students take all 3 courses.

4 0
3 years ago
What is 50.8 divided by 2.54
Veseljchak [2.6K]
It's 20.

Hope this helps <3 
5 0
2 years ago
Read 2 more answers
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