Grade 6 Unlimited Math Practice: Constant Rate

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A factory makes desks at a constant rate. After 9 hours it made 1800 desks. What function relates the number of desks, d, to the number of hours, h?

$h = 200d$

$h = d + 200$

$d = 200h$

$d = h + 200$

Which function relates the number of pies baked, p, with the number of hours, h?

hours	pies baked
4	8
5	10
6	12
7	14

$p=10h$

$h=10p$

$p=2h$

$h=2p$

A factory makes cars at a constant rate. After 5 hours it made 2800 cars. What function relates the number of cars, c, to the number of hours, h?

$c = 560h$

$h = c + 560$

$h = 560c$

$c = h + 560$

A factory makes computers at a constant rate. After 6 hours it made 3000 computers. What function relates the number of computers, c, to the number of hours, h?

$h = c + 500$

$h = 500c$

$c = h + 500$

$c = 500h$

Which function relates the number of points scored, p, with the number of minutes, m?

minutes	points scored
3	30
4	40
5	50
6	60

$m=10p$

$p=40m$

$p=10m$

$m=40p$