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2.6 – Ratios & Proportions. Ex. 1Determine whether each pair of ratios are equivalent ratios. a) 2, 8 3.5 14.

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Presentation on theme: "2.6 – Ratios & Proportions. Ex. 1Determine whether each pair of ratios are equivalent ratios. a) 2, 8 3.5 14."— Presentation transcript:

1 2.6 – Ratios & Proportions

2 Ex. 1Determine whether each pair of ratios are equivalent ratios. a) 2,

3 Ex. 1Determine whether each pair of ratios are equivalent ratios. a) 2, 8*Set them equal to each other & cross multiply.

4 Ex. 1Determine whether each pair of ratios are equivalent ratios. a) 2, 8*Set them equal to each other & cross multiply. 2 =

5 Ex. 1Determine whether each pair of ratios are equivalent ratios. a) 2, 8*Set them equal to each other & cross multiply. 2 =

6 Ex. 1Determine whether each pair of ratios are equivalent ratios. a) 2, 8*Set them equal to each other & cross multiply. 2 =

7 Ex. 1Determine whether each pair of ratios are equivalent ratios. a) 2, 8*Set them equal to each other & cross multiply. 2 = =

8 Ex. 1Determine whether each pair of ratios are equivalent ratios. a) 2, 8*Set them equal to each other & cross multiply. 2 = = 28

9 Ex. 1Determine whether each pair of ratios are equivalent ratios. a) 2, 8*Set them equal to each other & cross multiply. 2 = = 28This is true, so they are equivalent ratios.

10 Ex. 1Determine whether each pair of ratios are equivalent ratios. b) 15, 35*Set them equal to each other & cross multiply.

11 Ex. 1Determine whether each pair of ratios are equivalent ratios. b) 15, 35*Set them equal to each other & cross multiply. 15 = = 630This is false, so they are not equivalent ratios.

12 Ex. 2 Solve each proportion. If necessary, round to the nearest hundredth. a) x =

13 Ex. 2 Solve each proportion. If necessary, round to the nearest hundredth. a) x = 3 *Cross Multiply 10 5

14 Ex. 2 Solve each proportion. If necessary, round to the nearest hundredth. a) x = 3 *Cross Multiply 10 5

15 Ex. 2 Solve each proportion. If necessary, round to the nearest hundredth. a) x = 3 *Cross Multiply = 5x

16 Ex. 2 Solve each proportion. If necessary, round to the nearest hundredth. a) x = 3 *Cross Multiply = 5x

17 Ex. 2 Solve each proportion. If necessary, round to the nearest hundredth. a) x = 3 *Cross Multiply = 5x 5 5

18 Ex. 2 Solve each proportion. If necessary, round to the nearest hundredth. a) x = 3 *Cross Multiply = 5x = x

19 Ex. 2 Solve each proportion. If necessary, round to the nearest hundredth. b) (x + 4) = 3 5 8

20 Ex. 2 Solve each proportion. If necessary, round to the nearest hundredth. b) (x + 4) = 3 *Cross Multiply = 8(x + 4) 15 = 8x = 8x = x


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