messaging plan A 35.00 monthly and fee per message is 0.10 . Plan B say that there monthly fee is 18.00 and there fee per message is 0.30 for what number of text messages will both plans cost the same
a.55 b.85 c.110 d.140
explain
You just have to plug it in. .30 times what is 55 and .10 times what is 55? If they match, then that is your answer. Still need help? :o)
No wait, thats wrong. It should be .30*55= ?
kind of
Okay, well for .30, 55 text messages will be $16.50, for .10, 55 text messages will be $5.50. For .30, 85 text messages will be $25.50. For .10, 85 text messages will be $8.50, etc.
I'm not sure how to solve it.. sorry.
ok thanks for trying
Hi! Let us say the number of text messages (on each plan) that would cost same for both plans be x. Therefore, cost due to the first plan would be: 35(monthly payment irrespective of number of texts) + 0.10 * x (for the number of texts) = 35+ 0.10*x Now cost due to second plan would be =18 + 0.30*x It is given that these two costs are equal 35+0.10x = 18 + 0.30x Therefore 0.20x = 35-18 = 17 (2/10) x = 17; Therefore x = 17*10/2 = 17*5 = 85 Therefore, if u send 85 messages on each plan, both plans would cost the same
Join our real-time social learning platform and learn together with your friends!