It costs $0.07 to send a text message and $0.12 to send a picture on your cell phone. You spend $3.38 and send twice as many text messages as pictures. How many text messages did you send?

Question

anonymous · Answer

best would be to create a formula that represent 
text messages t
picture messages p
and you need to find out how much you spend = x
and input the numbers into the formula

dan815 · Answer

0.07*(2x)+ 0.12*x = 3.38

dan815 · Answer

let x be the number of picture msgs

dan815 · Answer

can you solve that equation from here?

dan815 · Answer

0.07*(2x)+ 0.12*x=3.38
 0.14*x+0.12*x=3.38 
0.26x=3.38
 x=?

anonymous · Answer

i think so. i'm trying to help my brother out with this dang common core stuff. :P thank you!

dan815 · Answer

get him to write out whatever he is thinking in terms of mathematics

anonymous · Answer

yup. he's working it out now.

dan815 · Answer

ok :)