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3241004551 [841]
3 years ago
6

What is the gcf of 15,9​

Mathematics
1 answer:
mariarad [96]3 years ago
7 0

Answer:

GCF = 3

Step-by-step explanation:

factors of 9 are 1, <em>3</em>, 9

factors of 15 are 1, <em>3</em>, 5, 15

Therefore the greatest common factor is 3

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Use the percent. proportion to solve 40% of what is 30?
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Step-by-step explanation:

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Write an expression that can be used to multiply 6 × 198 mentally.
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Step-by-step explanation:

brainly.com/question/274291

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The equations of a system have the same slopes. What can you determine about the solution of the system of equations?
user100 [1]
One of two things:
-There is no solution because they are parallel lines
- OR There is infinite solutions because they are the same line. 
5 0
3 years ago
Manny can assemble a computer by himself in 50 minutes. Lucy does the same job in 45 minutes. How long will it take to assemble
jonny [76]
Manny can assemble a computer in 50 minutes. That means, in a minute Manny does \frac{1}{50} job.

Lucy can assemble a computer in 45 minutes. That means, in a minute Lucy does \frac{1}{45} job.

If they are working together, in a minute they will do:
\dfrac{1}{50} + \dfrac{1}{45}
= \dfrac{9}{450} + \dfrac{10}{450} \text{(equalize the denominator)}
=\dfrac{19}{450}
In a minute they will do \frac{19}{450} job

To finish the job they will do it in \frac{450}{19} minutes or about 24 minutes.
5 0
3 years ago
For the last basketball game, 381 tickets were sold. Adult tickets sold for $7, and student tickets sold for $3. How many adult
vovikov84 [41]

Answer: 96 adult tickets were sold.

Step-by-step explanation:

Let x represent the number of adult tickets that were sold.

Let y represent the number of students tickets that were sold.

For the last basketball game, 381 tickets were sold. This means that

x + y = 381

Adult tickets sold for $7, and student tickets sold for $3. If the ticket sales totaled 1,527, it means that

7x + 3y = 1527 - - - - - - - - - - - -1

Substituting x = 381 - y into equation 1, it becomes

7(381 - y) + 3y = 1527

2667 - 7y + 3y = 1527

- 7y + 3y = 1527 - 2667

- 4y = - 1140

y = - 1140/- 4

y = 285

x = 381 - y = 381 - 285

x = 96

4 0
3 years ago
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