Alex has a collection of butterflies and moths. he has 342 insects total. the number of butterflies is twice the number of moths. write a system of equations that can be used to model this situation. how many butterflies does alex have in his collection? a) 216 b) 222 c) 228 eliminate d) 234

The answer is C) 228

How?

b + m = 342

b = 2m

2m + m = 342

3m = 342

m = 114

Substitute to the original equation, "b + m = 342".

b + 114 = 342

b = 228

constants mean the stopped points or the points on a graph that nothing is changing, hope this

step-by-step explanation:

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.