Book Maths Puzzle Percentage

Angela is making punch for a party. She wants to combine a drink with 20% real fruit juice with a drink that is 90% real fruit juice. If she wants to end up with 20 cups of a mixture

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Book Other Question

In a triangle, one angle is twice the measure of the second angle. The third angle is three times the measure of the second angle. Find the measure of each angle. Solve the linear equation
Price = 20 - (1/2)*d
Price = 6 + 3*d
d is unit of supply Plot two curves Price y-axis unit (d) x-axis