Answer: x=0.050
Step-by-step explanation:
Answer:
As X gets bigger, Y gets smaller.
Step-by-step explanation:
Every time X gets larger, the Y coordinates go down.
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.
Answer:
A.130 stamps after 3 months
B. The number of stamps Gracie added to her collection in 2 months is 100
Step-by-step explanation:
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