Question

Sharon has a new beaded necklace. 72 out of the 80 beads on the necklace are blue. What

percentage of beads on Sharon's necklace are blue?
Write your answer using a percent sign (%).

Answer 1

Sharon bought a necklace with 90% blue beads.

Explanation:

We are given that Sharon's necklace has 80 beads. We are also given that of those 80 beads, 72 of them are blue.

Therefore, we can set up a ratio of blue beads to total beads in order to find out the relationship.

`\displaystyle (72)/(80)=(36)/(40)=(18)/(20)=(9)/(10)`

Then, using the fraction we receive as a result, we can convert this to a decimal.

`\displaystyle (9)/(10) = 0.9`

After we complete this calculation, we can multiply our decimal by 100 in order to obtain the relationship in percentage form.

`0.9 * 100 = 90\%`

Of the 80 beads, 90% were blue beads.

Answer 2

90%

Explanation:

Step 1:

72/80 = x /100 Proportion

Step 2:

80x = 7200 Multiply

Step 3:

x = 7200 ÷ 80 Divide

Answer:

90%

Hope This Helps :)