4.3A – Equivalent Ratios.

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Presentation transcript:

4.3A – Equivalent Ratios

Equivalent means EQUAL! Determine if 20 rolls for $5 and 48 rolls for $12 are equivalent rates. 1st Write each rate as a fraction. 2nd Find its unit rate. ÷5 ÷12 = 20 rolls $5 __________ 4 rolls $1 _________ = __________ 48 rolls $12 4 rolls $1 _________ ÷5 ÷12 YES – they have the same unit rate! Remember to find a Unit Rate use division! 4 rolls $1 _______

NO- They have DIFFERENT unit rates, one is 7 and the other is 8! How about this one? Determine if 42 people on 7 teams and 64 people on 8 teams are equivalent rates. 1st Write each rate as a fraction. 2nd Find its unit rate. ÷7 ÷8 = ____________ 42 people 7 teams ___________ 6 people 1 team = ____________ 64 people 8 teams ___________ 8 people 1 team ÷7 ÷8 NO- They have DIFFERENT unit rates, one is 7 and the other is 8!

Are 2 things equivalent? Determine if 5 laps swum in 8 minutes and 11 laps swum in 16 minutes are equivalent rates. 1st If you can’t figure out who goes with who, LABEL them! 2nd See if they are equal to each other!!! ×2 = ____________ 5 laps 8 minutes ___________ 11 laps 16 minutes ? ×2 NO! They are NOT equal to each other!!!

Here is an equal one… Determine if 8 corrals with 56 horses and 4 corrals with 28 horses are equivalent ratios. 1st Write each rate as a fraction. 2nd See if they are equal to each other!!! ÷2 = ____________ 8 corrals 56 horses ___________ 4 corrals 28 horses ? ÷2 YES! They are equivalent this time!