PMargarett
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1.The sum of two numbers is 60. The larger number is 8 more than twice the smaller number. What are the two number?



2.How many gallons of 10% alcohol solution and 70% alcohol solution must be mixed to get 6 gallons 40% alcohol solution?​

Respuesta :

watsonultra2

Answer:

(1)

x = 128/3

y = 52/3

(2)

x=3

Step-by-step explanation:

(1)

x+y=60 => 3y=52 => y=52/3 => x=128/3

x=2y+8

(2)

M1V1 + M2V2 = MV

x × 10 + x × 70 = 6 × 40

80x = 240

x = 3

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