Answer:
b: -2y and 4y
Step-by-step explanation:
The answer is option B
-2y and 4y are like terms because they have the same algebraic alphabet at the back of their coefficients.
Answer:
27 : 8
Step-by-step explanation:
Given 2 similar figures with ratio of sides a : b, then
ratio of areas = a² : b² and
ratio of volumes = a³ : b³
Here the ratio of areas = 9 : 4, thus
ratio of sides =
:
= 3 : 2
ratio of volumes = 3³ : 2³ = 27 : 8
-7x + 6 = 27
-7x = 21 (Subtract 6 from both sides)
x = -3 (Divide -7 from both sides)
The answer would be
x = 160/147
or
x = 1 and 13/147