The equation for direct variation is y = kx
k is the constant of variation.
15 = k(3)
15/3 = k
k = 5
The constant is 5
Answer: y = 5x
Answer:
1 hr at the speed of 50 mph
Step-by-step explanation:
If you went 50 mph it would be 1 hour. 100mph = 30min.
Answer:
132 history textbooks, 87 chemistry textbooks
Step-by-step explanation:
H = 132,
C = 132 - 45 = 87
Answer:
7.583%
Step-by-step explanation:
We have the information that Summer has an offer to buy the item with the sticker price $13,200 i.e. the principal amount 'P' of the item is $13,200.
Further, she needs to pay $460 per month for 36 months .i.e. the total amount 'A' of the item is 460*36 = $16,560.
Also, the total time 't' to pay the amount is 36 months i.e. 3 years. This implies that the amount on the item is compounded monthly .i.e. n = 12
Let, the rate of interest = r %
Using the formula for compound interest given below, we will find the rate of interest.
i.e.
i.e.
i.e. r = 0.07583 = 7.583%
Hence, the annual interest rate is 7.583%