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Gre4nikov [31]
3 years ago
8

ANSWER TO NUMBER 3 FIRST PERSON GETS BRAINLIEST!!

Mathematics
1 answer:
rusak2 [61]3 years ago
6 0
The correct answer would be B.)

Multiplying -5x-7= 35

Multiplying two negative numbers gives you a positive
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You purchase a music store for $115,000. The estimated monthly revenue is $5500 and you expect monthly costs are $3200. Let R re
Butoxors [25]

9514 1404 393

Answer:

  R = 5500t

Step-by-step explanation:

The estimated monthly revenue is said to be 5500 per month. Then for t months, the revenue R will be ...

  R = 5500t

_____

<em>Additional comment</em>

We expect costs to be C = 3200t, so profit is ...

  P = R -C

  P = 5500t -3200t

  P = 2300t

At that rate, it will be 50 months before enough profit is earned to pay for the initial cost of the store.

4 0
3 years ago
The selling price of the Robertsons family house dropped from $500,000 to $250,000. What was the percent decrease in the value o
Alexus [3.1K]

Answer:

50%

Step-by-step explanation:

You can literally do it mentally lol

 $500,000

- <u>$250,000</u>

 $250,000

so by common sense, it's 50%

Hope it helped!

5 0
3 years ago
Read 2 more answers
A High School’s football Stadium holds a total of 7,000 fans. A survey shows that of the total number of fans, 68% root for the
alexira [117]
The answer would be 4,760 fans.
Explanation: 7,000 x .68 =4,760
Hope this helps and please mark brainliest!!!
3 0
3 years ago
What is an equation of the line that is perpendicular to y-3=4(x+2) and passes through the point (-5,7)
gtnhenbr [62]

Answer:

The perpendicular line would be y = -1/4x + 23/4

Step-by-step explanation:

In order to find the equation of this line, we first have to note that perpendicular lines have opposite and reciprocal slopes. Therefore, since the original line has a slope of 4, we know the new line will have a slope of -1/4. Now we can use that information along with the given point in point-slope form to find the equation.

y - y1 = m(x - x1)

y - 7 = -1/4(x + 5)

y - 7 = -1/4x - 5/4

y = -1/4x + 23/4

4 0
3 years ago
This is a variation acitivity:
sergey [27]

\bf \qquad \qquad \textit{direct proportional joint variation} \\\\ \textit{\underline{y} varies jointly with \underline{x} and \underline{z}}\qquad \qquad y=kxz\impliedby \begin{array}{llll} k=constant\ of\\ \qquad variation \end{array} \\\\[-0.35em] \rule{34em}{0.25pt}


\bf \stackrel{\textit{\underline{I} varies jointly with \underline{P} and \underline{t}}}{I=kPt} \\\\\\ \textit{we also know that } \begin{cases} P=2000\\ t=4\\ I=320 \end{cases}\implies 320=k(2000)(4)\implies \cfrac{320}{(2000)(4)} \\\\\\ 0.04=k\qquad therefore\qquad \boxed{I=0.04Pt} \\\\\\ \textit{if P=5000 and t=7, what is \underline{I}?}\qquad I=0.04(5000)(7)\implies I=1400

8 0
3 years ago
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