I WILL GIVE YOU BRAINLEIST Jill jumped feet in the long-jump event. Jill’s best friend jumped feet. How much farther did Jill’s best friend jump? Describe in words the process you used to solve the problem. If Jill’s best friend jumped farther than 6.5 feet, then she beat the school record and the seventh graders earn 50 points. If not, the eighth graders earn 50 points. Which grade should be awarded 50 points?
Answers
Answer:
Jill's best friend jumped 8/21 feet further than Jill.
Step-by-step explanation:
we have that
Jill jumped 6 1/3 feet
Jill best friend jumped 6 5/7 feet
To find out how much farther did Jill's best friend jumped, subtract the length that Jill jumped from the length that Jill best friend jumped
6\frac{5}{7}-6\frac{1}{3}6
7
5
−6
3
1
but first convert mixed number to improper fraction
6\frac{5}{7}\ ft=\frac{6*7+5}{7}=\frac{47}{7}\ ft6
7
5
ft=
7
6∗7+5
=
7
47
ft
6\frac{1}{3}\ ft=\frac{6*3+1}{3}=\frac{19}{3}\ ft6
3
1
ft=
3
6∗3+1
=
3
19
ft
substitute the values
\frac{47}{7}-\frac{19}{3}=\frac{47*3-7*19}{21}=\frac{8}{21}\ ft
7
47
−
3
19
=
21
47∗3−7∗19
=
21
8
ft
therefore
Jill's best friend jumped 8/21 feet further than Jill.
Answer:
8 21
Step-by-step explanation:
Jill jumped 6 1/3 feet
Jill best friend jumped 6 5/7 feet
To find out how much farther did Jill's best friend jumped, subtract the length that Jill jumped from the length that Jill best friend jumped
but first convert mixed number to improper fraction
substitute the values