Answer:
The discount is $0.8d.
Step-by-step explanation:
Given that,
The original cost of Tamara's purchase is d dollars.
Tamara uses a coupon to save 20% off her purchase at the bookstore.
Discount = 20%
Discount is applied to the original cost.
Discount = d-(20/100)d
Discount = 0.8 d
Hence, the discount is $0.8d.
Answer:
his weekly exercise time goal in minutes = 200 minutes
Step-by-step explanation:
Jerry has reached 39% of his weekly exercise time goal.
so far this week ,he has exercise for a total of 78 minutes this week.
39% of total = 78 minutes
100%= x
X=100*78/39
X=100*2
X= 200 minutes
his weekly exercise time goal in minutes = 200 minutes
Answer: 2014
Step-by-step explanation:
LED: -25x + 6y = 20
CFL: 15x + 2y = 322
we need to find which year it was the same to know where LED lighting surpassed CFL lighting
-25x + 6y = 20
15x + 2y = 322 (-3)
-25x + 6y = 20
<u>-45x - 6y = -966 </u>
-70x = -946
x = 13.51
The nearest year would be 14 which is 2014
.253 as a fraction would be
253/100
Answer:
2
Step-by-step explanation:
