K is the midpoint of JL, so it is halfway between J and L (see diagram). If JK is 7 units long, then so is KL. The length of the entire segment JL is 4x - 2, so
Can you finish it?
Answer:
D
Step-by-step explanation:
pi = 3.14
r = 3
3.14 x 3x^2
= 28.26x^2
Answer:
You will only be able to buy two at the original price the following day.
Step-by-step explanation:
You spend $30.40 on 4 CDs. Each CD costs the same amount and is on sale for 80% of the original price.
If x = original cost of one CD
80% of one CD = 0.8x
0.8x = the price you pay for one discounted CD
You buy 4 of the discounted CDs for $30.40
4(0.8x) = 30.40
solve for x, the original cost of one CD
3.2x = 30.40
x = 9.50
The next day, the CDs are no longer one sale. You have $25. Will you be able to buy 3 more CDs?
25$ / $9.50 = 2.63 CDs
Answer:
domain is all reals
Step-by-step explanation:
sorry I couldn't find the range
Answer:
Each movie costs $3.75 while each video game costs $5.50.
Step-by-step explanation:
Let the cost of each movie and the cost of each video game be $x and $y respectively.
6x + 5y = 50 ------ equation (1)
2x + 3y = 24 ------ equation (2)
Subtract 3 times of equation (2) from equation (1):
(6x + 5y) - 3(2x + 3y) = 50 - 3(24)
6x + 5y - 6x - 9y = 50 - 72
-4y = -22
4y = 22
∴ y = 5.5
Substitute y = 5.5 into equation (2):
2x + 3(5.5) = 24
2x = 7.5
∴ x = 3.75