Aliens arrived in our planet and our only hope is to answer 3 proportion questions.
Question 4 page 67
4. Determine the unit rate.
a) Three dinner rolls cost 99¢.
One roll cost $0.33
b) Seven identical objects have a mass
of 14 kg.
One object have a mass of 2 kg.
Question 6 page 67
6. Delia was paid $35 for 5 h of babysitting.
How much should she receive for 3 h?
Use a unit rate to find the answer
She receives $21.80/3h.
Question 14 page 68
14. Last night 30 cm of snow fell in 6 h. If it
continues snowing at the same rate, how
long will it take for 45 cm of snow to fall?
Determine the answer two different ways
30cm/6h and 5cm/1h
It will take 9 hours for 45 cm snow to fall