Joan wants to buy a rug for a room that is 1111 feet by 1414 feet. she wants to leave a uniform strip of floor around the rug. s
1 answer:
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Answer:
a) x= 5 or x= -3
b) x = -4 + or -4 -
Step-by-step explanation:
a) - 2x - 15 =0
x = or
x= 5 or x=-3
b) + 8x - 10 =0
x = or
x = -4 + or -4 -
Answer:
On average, students in the 4th period did more chin-ups than students in the 2nd period
Step-by-step explanation:
Given the table values as
2nd Period 3 4 12 14 7 7 8 4 8 3 11 10 9 8 10 4 8 7 13 9
4th Period 10 3 14 14 16 15 7 12 7 10 12 8 10 9 6 11 9 1 2 5
Find the average chin-ups done by students in the gym classes
For 2nd Period gym class, the average will be;
=sum of chin-ups ÷ number of students
=sum of chin-ups in 2nd period gym class=
=number of students=20
Average=159÷20
=
For 4th Period gym class
Sum of chin-ups=
Number of students=20
Average number of chin-ups in the 4th period gym class
Average number of chin-ups in 2nd Period Class = 8
Average number of chin-ups in 4th Period Class= 9
Conclusion; On average students in the 4th period gym class made more chin-ups (9) than those in 2nd period gym class (8).