Mathematics
Grade 8
15 min
Solve a system of equations by graphing: word problems
Solve a system of equations by graphing: word problems
Tutorial Preview
1
Two phone plans cost the same at a certain point. When?
2
Two friends are saving money. When will they have the same amount?
3
A faster car is chasing a slower car. When does it catch up?
Sample Practice Questions
Easy
A plumber charges a $20 fee plus $10/hr. Another charges a $10 fee plus $15/hr. At how many hours is the cost the same?
0.1 hr
1.2 hrs
2.3 hrs
3.4 hrs
Easy
Ana has $10 and saves $2/day. Ben has $4 and saves $4/day. After how many days will they have the same amount?
0.2 days
1.3 days
2.4 days
3.5 days
Easy
Two streaming services have different costs. Service A is $5/month plus a $10 startup fee. Service B is $7/month. When do they cost the same?
0.3 months
1.4 months
2.5 months
3.6 months
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