Answer:
Step-by-step explanation:
Given
Required
Write an expression for the selling price for b birdbaths
This selling price for 1 birdbath is calculated as:
Substitute 12 for Cost Price
Factorize:
Express percentage as decimal
For b birdbaths, the selling price is:
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First you would distribute the -12 to x and 5.
You would get -12x-60=144. Now solve for x.
Add 60 on both sides. (Do the inverse)
You get -12x=204
Then divide by -12 on both sides.
Answer: x=-17
Answer:
discriminant equals zero
Step-by-step explanation:
b² - 4ac where a = 1, b = -6, and c = 9
(-6)² - 4(1)(9) = 36 - 36
Answer:
a = 27
Step-by-step explanation:
3/4 = a/36 Cross multiply
4*a = 36*3 Combine the right
4a = 108 Divide by 4
4a/4 = 108/4
a = 27