robert7248
05.10.2019 •
Mathematics
Marcus is selling lemonade and peanuts. each cup of lemonade chats .75 and each bag of peanuts costs .35. on saturday marcus sold five more cups of lemonade than peanuts. he earned $7.05. how many cups of lemonade did marcus sell on saturday?
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Ответ:
y=number of cups of lemonade.
We suggest this system of equations.
0.35x+0.75y=7.05
y=x+5
solve by substitution method.
0.35x+0.75(x+5)=7.05
0.35x+0.75x+3.75=7.05
1.1x=7.05-3.75
1.1x=3.3
x=3.3/1.1=3
y=x+5
y=3+5=8
8 cups of lemonade
Ответ:
D. 528
Step-by-step explanation:
It would be D because 24x22= 505+(6x4)=528