Bell work Week 24 Pick a math word and write the definition.

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Bell work Week 24 Pick a math word and write the definition. Chapter 6 or Chapter 1 Check calendar and your student vue! Turn in your unit rate homework. Answer: C

Solving Proportions Pg. 39 RS Answer: C

= = Proportions A proportion is an equation that states that two ratios are equivalent. Example: 2 12 3 18 = = 5 15 9 27

= = Proportions can also be solved using cross products. 4 12 5 x 4 12 5 x Cross multiply Solve for x 4x = 5 12 4x = 60 x = 15 = 7 x 8 48 7 48 = 8x 336 = 8x 42 = x Cross multiply Solve for x

Proportion Examples Pg. 39 LS Answer: C

If one of the numbers in a proportion is unknown, mental math can be used to find an equivalent ratio. Example: 1 = 2 6 3 x x 3 = Hint: To find the value of x, multiply 3 by 3 also. 2 6 3 x = 2 6 3 9 x 3

If one of the numbers in a proportion is unknown, mental math can be used to find an equivalent ratio. Example : 2 = 28 7 32 x ÷ 4 Hint: To find the value of x, divide 32 by 4 also. = 28 7 32 x = 28 7 32 8 ÷ 4

Example 3 Solve the proportion using equivalent ratios? Answer: x = 20 x = 20 Ck: 2 x 20 = 40 8 x 5 = 40

Example 4 Solve the proportion using equivalent ratios? Answer: x = 16 x = 16 Ck: 4 x 36 = 144 9 x 16 = 144

Grab a whiteboard and an area to work! Whiteboard practice Grab a whiteboard and an area to work! Answer: C

1) 2) 3) 6) 4) 5) Solve the proportion using equivalent ratios: Answer: x = 10 6) 4) 5)

Solve the proportion using equivalent ratios: 1) 2) 3) X = 10 X = 20 X = 4 Answer: x = 10 4) X = 3 5) 6) X = 7 X = 15

Video 10 minutes What is a proportion?