Explain how you could estimate 22% of 78 to check if your answer is reasonable.
1 answer:
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Answer:
9 bottles of soda and 7 bottles of juice
Step-by-step explanation:
Let x be the number of bottles of soda purchased and y be the number of bottles of juice purchased.
1. Gabriel purchased 2 more bottles of soda than bottles of juice, then
2. Each bottle of soda has 35 grams of sugar, then there are 35x g of sugar in x bottles of soda.
Each bottle of juice has 10 grams of sugar, then there are 10y g of sugar in y bottles of juice.
In total, there are 35x+10y g of sugar.
All bottles collectively contain 385 grams of sugar, thus
3. Solve the system of two equations:
Substitute the first equation into the second equation:
A) 
B)
C)
D)
You were correct, the exact answer is A. The others do not equal 23 besides that one. Good job!
B)
C)
D)
You were correct, the exact answer is A. The others do not equal 23 besides that one. Good job!