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slamgirl [31]
3 years ago
8

A color printer prints 21 pages in 9 minutes. How many pages does it print per minute? Round your answer to the nearest hundredt

h.
? = pages per minute
Mathematics
1 answer:
hichkok12 [17]3 years ago
8 0

Answer:

2.33 = x

Step-by-step explanation:

pages minutes

21 9

x 1

Cross multiply.

21×1 = 9×x

<u>21</u><u> </u> <u>9x</u>

9 9

9 cancels 9 leaving x. and 21 divided by 9 equals 2.33 pages. NB. both sides are divided by 9 because we want x by itself and what you do to one side, you have to do to the other.

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The school that Jack goes to is selling tickets to a choral performance. On the first day of ticket sales the school sold 9 seni
raketka [301]

Answer:

Price of a senior citizen ticket is $4 and price of a student ticket is $15 .

Step-by-step explanation:

Let us assume that the price a senior citizen ticket be x .

Let us assume that the price a student citizen ticket be y .

As given

The school that Jack goes to is selling tickets to a choral performance.

On the first day of ticket sales the school sold 9 senior citizen tickets and 8 student tickets for a total of $156.

Equtaions becomes

9x + 8y = 156

As given

The school took in $163 on the second day by selling 7 senior citizen tickets and 9 student tickets.

Equations becomes

7x + 9y = 163

Multipy 9x + 8y = 156 by 9 .

81x + 72y = 1404

Multiply 7x + 9y = 163  by 8 .

56x + 72y = 1304

Subtracted 56x + 72y = 1304 from 81x + 72y = 1404 .

81x - 56x + 72y - 72y = 1404 - 1304

25x = 100

x = \frac{100}{25}

x = $ 4

Putting value of x in the 56x + 72y = 1304 .

56 × 4 + 72y = 1304

224 + 72y = 1304

72y  = 1304 - 224

72y = 1080

y = \frac{1080}{72}

y = $15

Therefore the price of a senior citizen ticket is $4 and price of a student ticket is $15 .


5 0
3 years ago
Use the grouping method to factor x3 + x2 + 5x + 5.
lisov135 [29]

Answer:

answer is a

Step-by-step explanation:

look at picture

3 0
3 years ago
The ratio of the measures of three angles in a triangle is 14:5:11. Find the measures of the angles
EleoNora [17]

Answer:

84 degrees

30 degrees

66 degrees

Step-by-step explanation:

14 + 5 + 11 = 30

180/30 = 6

14 × 6 = 84 degrees

5 × 6 = 30 degrees

11 × 6 = 66 degrees

Please Rate Thank and Mark as Brainliest!

7 0
4 years ago
In the scientific method before conducting an experiment is necessary to
kotykmax [81]
The answer is B. Draw conclusions
3 0
3 years ago
The Fahrenheit measure of temperature is a function of the Celsius measure. The Fahrenheit measure is 32 more than StartFraction
sergij07 [2.7K]

Answer:

D. g(x) = \frac{9}{5}\cdot x + 32

Step-by-step explanation:

The mathematical transcription of the statement is:

g(x) = \frac{9}{5}\cdot x + 32

Which corresponds with option D.

3 0
3 years ago
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