Answer:
=7x^2+6x+6y-15
Step-by-step explanation:
Answer:
x=0, 1
Step-by-step explanation:
Answer:
1/2
Step-by-step explanation:
Probability = Favorable outcomes / Total number of outcomes
=> Purple + Blue / Total
=> 6 + 4 / 20 (Because there are 6 purple and 4 blue and 10 green)
=> 10 / 20
=> 1/2
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Answer:
Step-by-step explanation:
Let v represent the volume of the 50% solution, in milliliters. Then 200-v will be the volume of 10% solution. The amount of alcohol in the mix will be ...
0.50v +0.10(200-v) = 0.48(200)
0.40v +20 = 96 . . . . . . simplify
0.40v = 76 . . . . . . . . . subtract 20
v = 190 . . . . . . . . . . . divide by 0.4
Kristina must mix ...
10 mL of 10% solution
190 mL of 50% solution