P = -Q + 2518 = -Q + 2518-25 = -Q-7 = -Q-7/-1 = -Q/-1Q = 7
Therefore, the store can expect to sell 7 new books if they will charge $18 for the new books.
Answer:Martin has the better deal.
Step-by-step explanation:
$24 times 2 is $48.
$35 times 3 is $105.
If you do $24 times 3 you will get $72, which is a better deal than $105.
In 2 hours the snowfall will be equal in both of the towns.
You start off with 5 in T1 and 9 in T2 if T1 is growing by 5in every hour and T2 is growing by 3in every hour.
You take 5in then add it to anther 5in that makes 10in
You take 9in then add it to 3in and you get 12in
Do those steps until you have the same number for each town
Y α 1/x
y = k/x Where k is the constant of proportionality.
xy = k Cross Multiplying.
k = xy
Recall y= -8 when x = -9
k = -9 * -8 = 72
Finding y when x = 4.
k = xy
72 = 4y Divide both sides by 4.
y = 72/4 = 18.
y = 18.
Y = mx + b
slope(m) = -8
(-11,7)....x = -11 and y = 7
now we sub into the formula and find b, the y int
7 = -8(-11) + b
7 = 88 + b
7 - 88 = b
- 81 = b
so ur equation is : y = -8x - 81 or 8x + y = -81 depending on what form u need it in
