Evelyn has a ribbon 420 cm long. She uses 216 cm to decorate a present., What percentage of ribbon is left> Express your answer correct to 1 decimal place.
ribbon left = 204 cm
percentage left = 204/420 = .4857
= appr 48.6%
To find the percentage of ribbon left, we need to determine the amount of ribbon that is used and subtract it from the total length.
The amount of ribbon used to decorate the present is 216 cm.
Total length of the ribbon is 420 cm.
To find the percentage, we can use the formula:
(ribbon left / total length) * 100
The ribbon left can be calculated by subtracting the amount used from the total length:
ribbon left = total length - amount used
= 420 cm - 216 cm
= 204 cm
Now we can find the percentage:
(ribbon left / total length) * 100
= (204 cm / 420 cm) * 100
= 48.6%
Therefore, Evelyn has 48.6% of the ribbon left.
To find the percentage of ribbon that is left, we need to calculate the remaining length of the ribbon and then calculate what percentage it is of the original length.
To do this, we subtract the length used to decorate the present from the total length of the ribbon:
Remaining length of the ribbon = Total length of the ribbon - Length used to decorate the present
Remaining length of the ribbon = 420 cm - 216 cm
Remaining length of the ribbon = 204 cm
Next, we can calculate the percentage of the remaining length by dividing the remaining length by the total length, and then multiplying by 100:
Percentage of remaining length = (Remaining length of the ribbon / Total length of the ribbon) x 100
Percentage of remaining length = (204 cm / 420 cm) x 100
Percentage of remaining length ≈ 48.6%
Therefore, approximately 48.6% of the ribbon is left.