Answer:
a) n = (p + 450) / 30
b) The Minimum number of cakes is 32
Step-by-step explanation:
Given that:
p = 30n - 450, where p is the profit in dollars from selling a number of cakes
(n).
a) to calculate the number of cakes (n) needed to be sold for a given profit, we need to make the number of cakes (n) the subject of formula for the equation.
p = 30n - 450
Adding 450 to both sides:
p + 450 = 30n - 450 + 450
30n = p + 450
Dividing through by 30:
30n / 30 = (p + 450) / 30
n = (p + 450) / 30
b)
If the profit is at least $500, the Minimum number of cakes (n) is:
n > (p + 450) / 30
n > (500 + 450) / 30
n > 950 / 30
n > 31.67
n ≈ 32
The Minimum number of cakes is 32
Given:
O(0,0)
P(5,5)
solution:
slope=(5-0)/(5-0)=1
use point-slope form:
y-y1=m(x-x1)
y-5=1(x-5)
y-5=x-5
y=x+0
where 1 is the slope, 0 is the y-intercept
the final form simplifies to
y=x
They are functions because they have the variables
20/100
= 0.2
0.2 x 20
= 4
4 of the shops are ice cream shops.
