Answer:n= (-217)
Step-by-step explanation:
-3(2n+7)=1281 first distribute the -3
-6n-21=1281
then add 21 to the right side the isolate the variable
-6n=1302
divide 1302 by -6
n= -217
Answer:
I must sell more than 318 copies so my revenue is greater than my costs
Step-by-step explanation:
The cost function (C(x)) is divided in two: fixed costs and variable costs. In this case, we have both, the fixed costs are $3,500 that I will spent on advertising and the variable cost is the print cost that depends on the number of books i want to print. The cost function is:
C(x)= $3,500+$4x
The revenue function depends on the number of books I sell:
R(x)= $15x
If i want to know how many books I should sell to have a greater revenue than cost i must solve this inequality:
Revenue (R(x))>Cost (C(x))
$15x>$3,500+$4x
$15x-$4x>$3,500
$11x>$3,500
x>$3,500/$11
x> 318,18
I must sell more than 318 copies so my revenue is greater than my costs
Slope equals 1/4 and y intercept is -3
Answer:
is the linear equation.
yes, it is possible.
Step-by-step explanation:
given data:
we were told that she would make $20 for each 5K participant and $45 for each 10K participant.
cost of each 5k participant = $20
cost of each 10k participant = $45.
her target = $9500
<u>solution:</u>
<em>let y represent the </em><em>10k</em><em> </em>
let x represent the 5k participant
the linear equation for this scenarios is

(b.) possibility of having 220 participant in the 5k race.

Answer:
The area of the deck after she doubles the length and width will be of 384 square feet.
Step-by-step explanation:
Area of a rectangle:
The area of a rectangle of length l and width w is given by:

Doubling length and width:
If we double the length and the width, the dimensions are 2l and 2w. Thus, the area will be of:

That is, if both dimensions are doubled, the area is multiplied by 4.
What will the area of the deck be after she doubles the length and width?
Was 96. Then, both dimensions were doubled, and the area has to be multiplied by 4.
96*4 = 384
The area of the deck after she doubles the length and width will be of 384 square feet.