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Nonamiya [84]
4 years ago
10

Or n: -6n + 9 = 1 - 5n your answer. I need help please

Mathematics
1 answer:
12345 [234]4 years ago
6 0

Answer:

Please

Step-by-step explanation:

Subistitute the nś

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If f(x) = 3x^2+x-2, then f(-2) =
Olin [163]

Answer:

f(-2) =8

Step-by-step explanation:

f(x) = 3x^2+x-2

Let x = -2

f(-2) = 3 * (-2)^2 + (-2) -2

       = 3(4) -2 -2

        =12 -2-2

         =10 -2

         =8

3 0
3 years ago
Tickets to the movies are $7 for adults and $4 for children. If 272 tickets
rewona [7]

Answer:

202 tickets for adults were sold and 70 tickets for children are sold.

Step-by-step explanation:

Solve this question using simultaneous linear equation.

•Let the number of tickets sold for adults be a

•Let the number of tickets sold for children be b

The question stated that 272 tickets were sold altogether. So:

a + b = 272

Now, make sure that only one of the unknown values remain on the left hand side. For example:

a = 272 - b

I will refer to the above equation as equation 1.

Now, the question also stated that the tickets sold $1694. This means that:

7a + 4b = 1694

I will refer to this equation as equation 2.

Now, substitute equation 1 into equation 2 by replacing the a in equation 2 with the values on the right hand side in equation 1. For example:

7(272 - b) + 4b = 1694

Then just solve the equation by finding the value of b.

7(272 - b) + 4b = 1694 \\ 1904 - 7b + 4b = 1694 \\ 1904 - 3b = 1694 \\ 1904 - 1694 = 3b \\ 210 = 3b \\ b = 210 \div 3 \\  = 70

Lastly, find the value of a. Just take the value of b and then substitute into equation 1.

a  = 272 - b \\  = 272 - 70 \\ a = 202

4 0
3 years ago
Leah just moved and she's looking for a new dance studio. She gets to list the price from tip top toes charges $300 for 12 class
SpyIntel [72]
If it’s by week then groovin and movin,but if it’s months tip toes
8 0
2 years ago
WILL MARK THE BRAINLIEST
Elis [28]

Answer:

Option D, 16/21

Step-by-step explanation:

<u>Step 1:  Add all of them together</u>

5 + 7 + 9

21

<u>Step 2:  Figure out how much of the plants are medicinal</u>

7 + 9

16

<u>Step 3:  Figure out the probability </u>

16/21

Answer:  Option D, 16/21

7 0
3 years ago
A paper cup is dropped and its landing position is recorded. The cup can land on the side, on the open end, or on the closed end
Tanya [424]

prob( it lands on open end) = 8/20 = 2/5

prob ( lands on closed end) = 4/20 = 1/5

The second choice is correct.

8 0
4 years ago
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