The equation is 5c+25b=260 when c+b=12. rearrange that into 12-b=c. substitute and you get 5(12-b)+25b=260. b=10. 12-10=2, so 10 buses and 2 cars were used as transportation for the field trip.
Answer:
11/12
Step-by-step explanation:
Multiply 1/4 times 3/3 and 2/3 times 4/4. That gives you 3/12 + 8/12. Add that together and you get 11/12
Answer:
Jada used 1/2 of the pancake mix in the box
Step-by-step explanation:
we know that
-----> represent the 100% of the box
so
by proportion
Find what fraction represent 
First convert mixed number to an improper fraction

Convert the percentage into fraction

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