2 years ago

Guysss my little sis has been using my brainly account just to let yall know :)

Mathematics

1 answer:

STatiana [176]2 years ago

8 0

Answer:

oof why tho :)

Step-by-step explanation:

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The quotient of a number and thirteen algebraic expression

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X/13
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2 years ago

Drinking eight fluid ounces of milk provides 270 mg of calcium. How many fluid ounces of milk provides 72.5 mg of calcium? Round

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3 years ago

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2 years ago

(m-3)/(7)=(m)/(m+8) Solve the proportion.

ExtremeBDS [4]

Answer: m=6, m=-4

Step-by-step explanation:

To solve this proportion, we have to cross multiply.

$\frac{m-3}{7} =\frac{m}{m+8}$

$(m-3)(m+8)=7m$

Now that we have cross multiplied, we actually need to FOIL the left side to expand the equation.

$m^2+8m-3m-24=7m$

Combine like terms.

$m^2+5m-24=7m$

We can move all terms to one side and then solve for m.

$m^2-2m-24=0$

We can actually factor this to:

$(m-6)(m+4)=0$

We set each factor equal to 0 to find m.

m-6=0

m=6

m+4=0

m=-4

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3 years ago