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Alisiya [41]
3 years ago
7

The formula p=8n-30 gives the profit p when a number of items n are each sold at $8 and expenses totaling $30 are subtracted.

Mathematics
1 answer:
JulsSmile [24]3 years ago
5 0
If the profit was 170 then 25 things were bought. since n is 25 you multiply it by 8 which is 200 and if you then subtract 30 the answer is 170
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Help please please help…….
olga nikolaevna [1]

Answer:

Choice A

Step-by-step explanation:

y-intercept = -3

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8 0
3 years ago
Ten years ago Victors age WAs half of the age he will be in 10 years how old is he now?
ICE Princess25 [194]

By solving a linear equation, we will see that Victor is 30 years old.

<h3>How old is Victor now?</h3>

Let's say that Victor is x years old.

We know that 10 years ago, (x - 10), his age was half of what it will be in 10 years (x + 10).

Then we can write the linear equation:

(x - 10) = (x + 10)/2

Now we can solve that equation for x:

2*(x - 10) = x + 10

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So we conclude that Victor is 30 years old.

If you want to learn more about linear equations:

brainly.com/question/1884491

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2 years ago
Evaluate 4x + 5y , when x = 7 and y = 10
Sladkaya [172]

Hi ;-)

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5 0
3 years ago
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The formula for the area of a triangle is A=12bh. Solve this equation for b.
aksik [14]

Step-by-step explanation:

Hey there!

Given;

[A = 1/2b*h]

Divide both sides by 'h'.

A/h = 1/2(b*h/h) [ on right side'h' gets cancelled].

Multiply '2' and 'A'.

A*2/h = b

b = 2A/h.

<em><u>Hope</u></em><em><u> </u></em><em><u>it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

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Answer:

(-2, -3)

Step-by-step explanation:

To solve this problem, we use the midpoint formula.

M = \frac{x1 + x2}{2} , \frac{y1+ y2}{2}

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Simplify:

M = \frac{-4}{2} , \frac{-6}{2}

M = (-2,-3)

3 0
3 years ago
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