A chef is going to use a mixture of two brands of Italian dressing. The first brand contains 5% vinegar, and the second brand contains 15% vinegar. The chef wants to make 240 milliliters of a dressing that is 8% vinegar. How much of each brand should she use?

168 ml of 5%,

72 ml of 15%

Step-by-step explanation:

X + Y = 240

X = 240 - Y

0.05X + 0.15Y = 0.08(240)

0.05X + 0.15Y = 19.2

X + 3Y = 384

240 - Y + 3Y = 384

2Y = 144

Y = 72

X = 240 - 72

X = 168

step-by-step explanation:

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