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Andrea B
Questions (12)
3x-4y=9
-3x+4y=12
1 answer
249 views
-3x+5y=1
9x-3y=5
1 answer
229 views
0.05x +0.10y=1.30
x+y=19
1 answer
337 views
d=rt for r
1 answer
198 views
I=Prt for t
1 answer
339 views
On Monday, Archie paid $3.40 for three doughnuts and two coffees. On Tuesday he paid $3.60 for two doughnuts and three coffees.
1 answer
383 views
-5/7x-1=3
1 answer
278 views
y-7-1/3=y-7, 9
2 3
1 answer
242 views
Sam lent her brother some money at 9% simple interest and her sister one-half as much money at 16% interest. If she received a
2 answers
620 views
How many gallons of 5% acid solution should be mixed with 20 galllons of a 10% acid solution to obtain an 8% acid solution
1 answer
2,349 views
Samantha lent her brother some money at 9% simple interest and her sister one-half as much money at 16% interest. If she
2 answers
987 views
A frame maker made a large picture using 10 feet of frame molding. If the length of the finished frame was 2 feet more than the
1 answer
1,250 views
