<span>Melvina's age is = x, Bettina's age is = 3x the equation is x + 20 = 3x - 20 subtract 3x from both sides -(3x) + x +20 = 3x - 20 - (3x) -2x + 20 = -20 subtract 20 from both sides -2x + 20 - (20) = -20 - (20) -2x = - 40 divide both sides by -2 (-2x)/-2 = (-40)/-2 x = 20 Melvinas age is 20 and Bettinas age is 60</span>

8 0

2 years ago

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Can someone help 2d + 1/5 = 3/5

bearhunter [10]

$2d+\dfrac{1}{5}=\dfrac{3}{5}\ \ \ \ \ |subtract\ \dfrac{1}{5}\ from\ both\ sides\\\\2d=\dfrac{2}{5}\ \ \ \ |divide\ both\ sides\ by\ 2\\\\\boxed{d=\frac{1}{5}}$

8 0

2 years ago

What is the product of the radical expression? (7-√7)(-6+√7)

worty [1.4K]

Answer is -14.6052329562

4 0

3 years ago

Which point on the graph representations the equilibrium price

kaheart [24]

I can help you to use brainly without waiting for someone else to give you the answer.

3 0

3 years ago