Question

Taylin buys 5 ounces of tea leaves for $2.35. At this rate, how much money does she need to buy 12 ounces of tea leaves? (second part) how would you work be different if you were asked how many ounces of tea leaves Taylin could buy with $10?

Answer 1

$5.64; 21.3 ounces

Explanation:

ounces : $

5 : 2.35

1 : X

X: the rate $ per ounce

1/5 = x/2.35

X = 0.47

a) 12 × 0.47 = 5.64

b) 0.47 = 10/n

n = 10/0.47

n = 21.2765957447

Answer 2

see below

Explanation:

We can determine how much 12 ounces cost by using ratios

5 ounces 12 ounces

-------------- = -------------------

2.35 x

Using cross products

5x = 12*2.35

5x = 28.2

Divide each side by 5

5x/5 = 28.2/5

x =5.64

If she has 10 dollars

5 ounces y ounces

-------------- = -------------------

2.35 10

5*10 = 2.35y

50 = 2.35y

Divide each side by 2.35

50/2.35 = 2.35y/2.35

21.27659574 =y

She can buy 21.3 ounces