X + 2x + x + 10 = 90
4x = 80
x = 20
Answer:
there is a 15/80 chance she will pick a black pen
there is also a 65/80 chance she will pick a blue pen
Step-by-step explanation:
Well here are two equivalent different expressions of my making that you could use for this question.
f(x) = 2x - 7
g(x) = 3x - 28 / 2
When x = 7, these two different expressions will equate to the same value of 7. If you meant something else let me know, otherwise this is what you should put for your essay-question.
40 I believe because the space of the auto mobile catching up to the train is 4 hours. 4 times 30 is 120 miles so u need to figure out a number that can reach 120 in three hours. 3 times 40 is 120
