3 years ago

Does anyone have a word problem idea for this equation 1.25x = 0.75x + 50

Mathematics

1 answer:

PSYCHO15rus [73]3 years ago

5 0

Answer: Keke, do you love me? Are your riding?

Idk either.

Tips: make it something about money, and the k should stand for kittens

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If f(x) is a continuous function defined for all real numbers, f(–1) = 1, f(–5) = –10, and f(x) = 0 for one and only one value o

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3 years ago

WILL GIVE BRAINLIEST a card is picked from the following card find the probability that the card drawn is purple

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Answer: 2/7

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3543.72 cm^2.

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2 years ago

Solve for x : log(3x) + log(x + 4) = log(15).<br><br>Please explain it to me.

zlopas [31]

Answer:

x = 1

Explanation:

$\sf \rightarrow log(3x) + log(x + 4) = log(15)$

Rule: log(a) + log(b) = log(ab)

$\sf \rightarrow log(3x(x + 4)) = log(15)$

cancel out log on both sides

$\sf \rightarrow 3x(x + 4) = 15$

relocate constant variable

$\sf \rightarrow 3x^2 + 12x -15 = 0$

take 3 as a common factor

$\sf \rightarrow 3(x^2 + 4x -5) = 0$

divide both sides by 3

$\sf \rightarrow x^2 + 4x -5 = 0$

middle term split

$\sf \rightarrow x^2 + 5x -x-5 = 0$

factor common terms

$\sf \rightarrow x(x + 5) -1(x+5)= 0$

collect into groups

$\sf \rightarrow (x-1)(x+5)= 0$

set to zero

$\sf \rightarrow x-1 = 0 , \ x+5= 0$

relocate variables

$\sf \rightarrow x = 1, \ x = -5$

There must be a positive solution for log, so the solution is only x = 1

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1 year ago

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C.) p(1) = 1; p(n) = p(n-1) + 1

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3 years ago

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