Question

A grocer has 18 kg of black tea worth $3.5 per kg. She wants to mix it with green tea worth $2.6 per kg to sell the mixture at $2.9 per kg. How much of green tea should she use?

Answer 1

Answer:

The price of a machine was inc

Answer 2

Answer:

36 kg

Step-by-step explanation:

Let x = amount of green tea she needs to use.

Black tea: 18 kg, $3.5/kg

Green tea: x kg, $2.6/kg

Mixture: (x + 18) kg; $2.9/kg

3.5 × 18 + 2.6 × x = 2.9 × (x + 18)

2.6x + 63 = 2.9x + 52.2

-0.3x = -10.8

x = 36

Answer: 36 kg