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3 years ago

Solve the equation 24 = 13n – 4n +9. n =

Mathematics

1 answer:

Alexxx [7]3 years ago

4 0

Answer:

n=5/3

Step-by-step explanation:

$24=13n-4n+9\\24=9n+9\\15=9n\\\\n=15/9$

simplified it would be 5/3

(If you wouldn't mind, if this helped you, please give brainliest, I'm trying to get an achievement)

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#7) Solve 8c - 3c + 3 = 13.

nordsb [41]

Hello!

$\large\boxed{c = 2}$

8c - 3c + 3 = 13

Begin by combining like terms:

5c + 3 = 13

Subtract 3 from both sides:

5c + 3 - 3 = 13 - 3

5c = 10

Divide both sides by 5:

5c/5 = 10/5

c = 2.

6 0

3 years ago

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Bumek [7]

Answer:

Step-by-step explanation:

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3 years ago

Three planets are in line and are orbiting round a sun, one take 1 week to orbit the sun another takes 9 weeks and the other tak

patriot [66]

Answer:

27 weeks.

Step-by-step explanation:

You need to calculate the minimun common multiple between the three times.

1 week = 1^1 week

9 weeks = 3^2 weeks

27 weeks = 3^3 weeks

You take the 1 and the 3 with the biggest exponent and multiply. In this case is 1^1*3^3 = 27. So, in 27 weeks the pkanets will all be in alignment.

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3 years ago

What's 57.8 divided by 81 using compatible numbers?

Arisa [49]

you can estimate 57.8 and 81 then to check you can do 57.8 divided by 81

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3 years ago

Solve:4x+3y=20;4x+2y=10 by matrix method

laila [671]

Answer:

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3 years ago