Your local dry cleaners is running a special. the dry cleaner is offering a 13% discount for any drop off that is over $40. also, they are running a neighborhood special of an additional 5% off. given this information, determine the decay factor corresponding to each percent decrease.
a. 34.8; 33.06
c. 0.87; 0.95
b. 0.384; 0.3306
d. 87; 95

c. 0.87; 0.95

Step-by-step explanation:

Given: The cost of dry cleaner = $40

Discount percentage r= 13%=0.13

We know that : Decay factor = 1-r

Therefore, the Decay factor regarding 13 % of discount =

After 5% additional off, the discount percentage =5%=0.05

Decay factor regarding 18 % of discount =

Hence, the decay factor corresponding to each percent decrease = 0.87; 0.95

47

step-by-step explanation:

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116