Answer:
Step-by-step explanation:
Given the initial ratio of 3 parts water to 5 parts fruit juice, you can set up a proportion (equivalent ratios) to determine the amount of water needed with just 1 part of fruit juice:
cross multiply: 5x = 3
divide: 5x/5 = 3/5 or x = 3/5
3/5 = 0.6 parts water
Answer:
The scientist needs 80 liters of 25% solution and 40 liters of 10% solution.
Step-by-step explanation:
If x is the liters of 25% solution, and y is the liters of 10% solution, then:
x + y = 120
0.25x + 0.10y = 0.20(120)
Solve the system of equations using substitution or elimination. Using substitution:
0.25x + 0.10(120 − x) = 0.20(120)
0.25x + 12 − 0.10x = 24
0.15x = 12
x = 80
y = 40
The scientist needs 80 liters of 25% solution and 40 liters of 10% solution.
65% of $19.
So, this would become 65/100 * 19.
$12.35 off, we are not done yet.
19.00
- 12.35
-------------
$ 6.65=answer
Hope this helps :)
Answer:
6
Step-by-step explanation:
Answer:
(0, 5)
Step-by-step explanation:
The y-intercept of a function is the point where x = 0. When you plug in x=0 for this equation, you get that y = 5. So, the point is (0, 5).
