One antifreeze solution is 39% alcohol and another is 26% alcohol. How much of each mixture should be added to make 65 L of a solution that is 33% alcohol?

This should have more of the solution without any extra alcohol in the solution with 39% while the solution with 26% needs 7% more alcohol.

b. an equilateral triangle inscribed in a circle

step-by-step explanation:

we are given the figure of two circles having a triangle inside.

now, we know that,

"when a figure is lying inside an another figure, then the outside figure is known as circumscribed figure and the figure lying inside is referred to as the inscribed figure".

as we see that, the circles are containing the triangle completely.

thus, the circles are the circumscribed figures and the triangle is the inscribed figure.

hence, we get, 'an equilateral triangle is inscribed in a circle'.