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MA_775_DIABLO [31]
3 years ago
12

Last week kellie ran 28 miles. This week she ran 32 miles. What is the perecent of change in the number she ran?

Mathematics
2 answers:
Oksana_A [137]3 years ago
7 0

Answer:

60%

Step-by-step explanation:

first do 28+32.

Next it equals 60. So change 60 to percentage form. It would be 60%

Tcecarenko [31]3 years ago
5 0
ANSWER:

14% increase.

The percent of change in the amount of miles Kellie ran last week and this week, rounded to the nearest whole number, is a 14% increase.

STEP-BY-STEP EXPLANATION:

Let % of change in Kellie's running distances from last weeks's 28 miles to this week's 32 miles = x

x = [ ( New amount - Original amount ) / Original amount ] × 100%

New amount = 32 miles

Original amount = 28 miles

THEREFORE:

x = [ ( 32 - 28 ) / 28 ] × 100%

x = ( 4 / 28 ) × 100%

x = ( 1 / 7 ) × 100%

x = 0.1428571429... × 100%

x = 14% ( rounded to the nearest whole number )
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