David had a tile that was an equilateral triangle. He concluded that each angle of the triangle measured 60°. Which of the following statements BEST justifies David’s conclusion? A. All acute angles have a measure of 60 degrees
b. every equilateral triangle is also an isosceles triangle
c. The sum of the measures of the angles in a triangle is 180 degrees, and the three angles are congruent
D. The measure of an exterior angle of a triangle is the sum of measures of its two remote interior angles

mark branliest

step-by-step explanation:

.6 is 1/2 of 12

the answer is actually d. i just took the test

translate k to n and reflect across the line containing jk.

delaney would like to make a 5lb nut mixture that is 60% peanuts and 40% almonds.

she has several pounds of peanuts and several pounds of a mixture that is 20% peanuts and 80% almonds.

let 'p' represent the number of pounds of peanuts needed to make the new mixture, and  

let 'm' represent the number of pounds of the 80% almond-20% peanut mixture.

:

p + m = 5

therefore

m = (5-p)

write an equation based on the percent of peanuts

1p + .2m = .6(5)

replace m with (5-p)

p + .2(5-p) = .6(5)

p + 1 - .2p = 3

p - .2p = 3 - 1

.8p = 2

p = 2/.8

p = 2.5 lbs of peanuts required

then

5 - 2.5 = 2.5 lbs of the peanut/almond mixture required

:

a) what is the system that models this situation?

p + m = 5

1p + .2m = .6(5)