Mathematics
Grade 8
15 min
Write equation for proportional relationships
Write equation for proportional relationships
Tutorial Preview
1
A car travels 120 miles in 2 hours. Write an equation for the distance (d) in hours (h).
2
A recipe's flour (f) to cookies (c) is shown: (2 dozen cookies, 3 cups flour), (4 dozen, 6 cups). Write an equation.
3
The equation c = 8p shows the cost (c) for (p) pizzas. What is the cost per pizza?
Sample Practice Questions
Easy
A bike travels 20 miles in 2 hours. Write an equation for distance (d) in hours (h).
0.d=10h
1.d=20h
2.d=2h
3.h=10d
Easy
A store sells 3 apples for $2. Write an equation for the cost (c) of (a) apples.
0.c=3a
1.c=1.5a
2.a=1.5c
3.c=(2/3)a
Easy
The table shows tickets (t) and cost (c): (t:2, c:$6), (t:3, c:$9). Write the equation.
0.c=2t
1.c=3t
2.t=3c
3.c=6t
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