Answer:
5/2
Step-by-step explanation:
The slope is given by
m = (y2-y1)/(x2-x1)
= (27-2)/(1 - -9)
= (27-2)/(1+9)
= 25/10
5/2
-45x + 18x^2
You need to distribute -9x to both numbers
(-9x)(5) + (-9x)(-2x)
-45x + 18x^2
Answer:
$200
Step-by-step explanation:
She paid 85% of the original price (since it was discounted 15%)
So
187 = 0.85x (where x is the original price, and 0.85 is 85% as a decimal)
This reads as "187 is 85% of some value". In this case, the value is the original price we are looking for. Solve this equation to find x
187 = 0.85x
220 = x (divide both sides by 0.85 to isolate x)
4+4+4 is the equivalent to 10+10+10