7th grade math Ms. Sue
posted by Delilah on .
2.
6x + 29 = 5 (1 point)
–4
–18
204
–144
9.
Raymond buys bottles of water at $2.10 each and a large pizza at $12.99. The total cost was $21.39. How many bottles of water b did he buy? (1 point)
2.10b + 12.99 = 21.39; 4 bottles
2.10 + 12.99b = 21.39; 4 bottles
2.10c = 21.39 + 12.99; 6 bottles
21.39 – 2.10b = 12.99; 16 bottles
For #2, Is the answer 18? Yes, there is no typo.....

No.
6x + 29 = 5
6x = 5  29
6x = 24
x = 24/6
x = 4
OK. 9 looks right now. I think I was misreading it before.
Here's the answer.
2.10b + 12.99 = 21.39; 4 bottles 
Thanks! They were all right!

You have to watch out for me. I've learned that no matter how I try, I'll make a mistake about 5% of the time.
:)