Answer:
5.40 is not the same as 7.00
Step-by-step explanation:
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Answer:
Hello!!
If the ratio of girls to boys in a class is 3:5, the fraction of the class that are girls is...

Hope this helps!!
Answer:

Step-by-step explanation:
Since there are nine 2s being multiplied by each other, we can represent this as
.
Answer:
Step-by-step explanation:
c + f = 16......c = 16 - f
340c + 910f = 9430
340(16 - f) + 910f = 9430
5440 - 340f + 910f = 9430
-340f + 910f = 9430 - 5440
570f = 3990
f = 3990/570
f = 7 <====== 7 first class tickets bought
c + f = 16
c + 7 = 16
c = 16 - 7
c = 9 <====== 9 coach tickets bought