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Kruka [31]
3 years ago
15

Given the function f(x) = 5x - 3(3x+7), Determine the value of x when f(x) =-18.

Mathematics
2 answers:
MAXImum [283]3 years ago
7 0

Answer:

-93

Step-by-step explanation:

olga2289 [7]3 years ago
6 0

Step-by-step explanation:

Simplifying

f(x) = 5x + -3(3x + 7)

Multiply f * x

fx = 5x + -3(3x + 7)

Reorder the terms:

fx = 5x + -3(7 + 3x)

fx = 5x + (7 * -3 + 3x * -3)

fx = 5x + (-21 + -9x)

Reorder the terms:

fx = -21 + 5x + -9x

Combine like terms: 5x + -9x = -4x

fx = -21 + -4x

Solving

fx = -21 + -4x

Solving for variable 'f'.

Move all terms containing f to the left, all other terms to the right.

Divide each side by 'x'.

f = -21x-1 + -4

Simplifying

f = -21x-1 + -4

Reorder the terms:

f = -4 + -21x-1

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Answer:

11.176 meters/second

Step-by-step explanation:

1 mile = 1609.34 meters

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1 hour = 60 minutes

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7 0
1 year ago
Solve for "n"! <br> 3(n+4)=-6+15n<br> help ASAP<br> RANDOM ANSWERS WILL BE MODERATED!
amm1812
We are told to solve for n given the equation 3(n + 4) = -6 + 15n. We can solve for n by first using the distributive property, which gives us 3n + 12 = -6 + 15n. Now, subtract 15n from both sides, giving us -12n + 12 = -6. Next, subtract 12 from both sides to get -12n = -18. Now, divide both sides by -12 to get n = 18/12, or 3/2 when simplified. Therefore, the value of n in the equation 3(n + 4) = -6 + 15n is 3/2. Hope this helped!
4 0
3 years ago
A toy store sold a train set for $48.00 last year. This year, the same train set costs $56.00 what is the percent increase of th
MArishka [77]
The increase of the cost:
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3 years ago
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Goshia [24]
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8 0
3 years ago
Read 2 more answers
Why does -5/10 equal 5/-10 ? explain..
Anuta_ua [19.1K]

Answer:

-5/10 equals to 5/-10 because even though the numerator/denominator is negative, when you simplify -5/10 or 5/-10, it give you -1/2 and 1/-2.

Step-by-step explanation:

7 0
3 years ago
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