How to do proportions. How many feet are in 5 yards? Proportion STEPS Keep same units on top, same units on bottom. 1.and 2. What measurements you already.

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Presentation transcript:

How to do proportions

How many feet are in 5 yards? Proportion STEPS Keep same units on top, same units on bottom. 1.and 2. What measurements you already know? 1) I know there are 3 feet in 1 yard. 3 feet 1 yd

How many feet are in 5 yards? Proportion STEPS Keep same units on top, same units on bottom. 1.and 2. What measurements you already know? 1) I know there are 3 feet in 1 yard. 2)I know I have 5 yards. 3 feet 1 yd 5 yd

How many feet are in 5 yards? Proportion STEPS Keep same units on top, same units on bottom. 1.and 2. What measurements you already know? 3.What do you want to find out? (Blank spot) 1) I know there are 3 feet in 1 yard. 3 )I need to find out the feet. 2)I know I have 5 yards. 3 feet 1 yd 5 yd

How many feet are in 5 yards? Proportion STEPS Keep same units on top, same units on bottom. 1.and 2. What measurements you already know? 3.What do you want to find out? (Blank spot) 4.Cross Multiply 1) I know there are 3 feet in 1 yard. 3 )I need to find out the feet. 2)I know I have 5 yards. 3 feet 1 yd 5 yd x

How many feet are in 5 yards? Proportion STEPS Keep same units on top, same units on bottom. 1.and 2. What measurements you already know? 3.What do you want to find out? (Blank spot) 4.Cross Multiply 1) I know there are 3 feet in 1 yard. 3 )I need to find out the feet. 2)I know I have 5 yards. 3 feet 1 yd 5 yd x 3 x 5 = 15

How many feet are in 5 yards? Proportion STEPS Keep same units on top, same units on bottom. 1.and 2. What measurements you already know? 3.What do you want to find out? (Blank spot) 4.Cross Multiply 5.Divide 1) I know there are 3 feet in 1 yard. 3 )I need to find out the feet. 2)I know I have 5 yards. 3 feet 1 yd 5 yd x

How many feet are in 5 yards? Proportion STEPS Keep same units on top, same units on bottom. 1.and 2. What measurements you already know? 3.What do you want to find out? (Blank spot) 4.Cross Multiply 5.Divide 1) I know there are 3 feet in 1 yard. 3 )I need to find out the feet. 2)I know I have 5 yards. 3 feet 1 yd 5 yd x

How many feet are in 5 yards? Proportion STEPS Keep same units on top, same units on bottom. 1.and 2. What measurements you already know? 3.What do you want to find out? (Blank spot) 4.Cross Multiply 5.Divide 1) I know there are 3 feet in 1 yard. 3 )I need to find out the feet. 2)I know I have 5 yards. 3 feet 1 yd 5 yd 15 feet

Lets do another

If Collin can run 4 miles in 46 min. About how long can he run in 2 miles? Proportion STEPS Keep same units on top, same units on bottom. 1.and 2. What measurements you already know? 3.What do you want to find out? (Blank spot) 4.Cross Multiply 5.Divide 1) I know he can run 4 miles in 46 min. 3 )I need to find out the min. 2)I know I have 2 miles. 46 min. 4 miles x 2 miles

If Collin can run 4 miles in 46 min. About how long can he run in 2 miles? Proportion STEPS Keep same units on top, same units on bottom. 1.and 2. What measurements you already know? 1) I know he can run 4 miles in 46 min. 46 min. 4 miles

If Collin can run 4 miles in 46 min. About how long can he run in 2 miles? Proportion STEPS Keep same units on top, same units on bottom. 1.and 2. What measurements you already know? 1) I know he can run 4 miles in 46 min. 2)I know I have 2 miles. 46 min. 4 miles 2 miles

If Collin can run 4 miles in 46 min. About how long can he run in 2 miles? Proportion STEPS Keep same units on top, same units on bottom. 1.and 2. What measurements you already know? 3.What do you want to find out? (Blank spot) 1) I know he can run 4 miles in 46 min. 3 )I need to find out the min. 2)I know I have 2 miles. 46 min. 4 miles 2 miles

If Collin can run 4 miles in 46 min. About how long can he run in 2 miles? Proportion STEPS Keep same units on top, same units on bottom. 1.and 2. What measurements you already know? 3.What do you want to find out? (Blank spot) 4.Cross Multiply 1) I know he can run 4 miles in 46 min. 3 )I need to find out the min. 2)I know I have 2 miles. 46 min. 4 miles x 2 miles

If Collin can run 4 miles in 46 min. About how long can he run in 2 miles? Proportion STEPS Keep same units on top, same units on bottom. 1.and 2. What measurements you already know? 3.What do you want to find out? (Blank spot) 4.Cross Multiply 1) I know he can run 4 miles in 46 min. 3 )I need to find out the min. 2)I know I have 2 miles. 46 min. 4 miles x 2 miles 46 x 2 = 92

If Collin can run 4 miles in 46 min. About how long can he run in 2 miles? Proportion STEPS Keep same units on top, same units on bottom. 1.and 2. What measurements you already know? 3.What do you want to find out? (Blank spot) 4.Cross Multiply 5.Divide 1) I know he can run 4 miles in 46 min. 3 )I need to find out the min. 2)I know I have 2 miles. 46 min. 4 miles x 2 miles