There are 235 seventh-grade students going on a field trip. The school has 5 buses to take the students. Each bus has 22 seats,
1 answer:
15 students will not be able to ride on bus for the field trip.
Step-by-step explanation:
No. of seats in one bus = 22 seats
1 seat is for 2 students, therefore, one bus can sit students;
No. of students in one bus = 22*2 = 44 seats
Total buses = 5
One bus can have 44 students, 5 buses can have;
5 buses = 44*5 = 220 students
Total students = 235
As the buses can have 220 students;
Students left = Total students - No. of students in 5 buses
15 students will not be able to ride on bus for the field trip.
Keywords: multiplication, subtraction
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(1)
Mean length of all fish in the sample -
<u>Mean</u> = (Sum of observations)/(Number of observations)
= (12 + 5 + 3 + 5 + 8 + 2 + 10 + 9 + 4 + 4)/(10)
= 62/10
=<em> 6.2</em>
(2)
Mean length of adult fish in the sample -
<u>Mean</u> = (Sum of observations)/(Number of observations)
= (12 + 5 + 8 + 10)/(4)
= 35/4
=<em> 8.75</em>
(3)
Mean length of juvenile fish in the sample -
<u>Mean</u> = (Sum of observations)/(Number of observations)
= (5 + 3 + 2 + 9 + 4 + 4)/(6)
= 27/6
<em>= 4.5</em>
(4)
Percentage of sample that were adult fish -
<u>Percentage</u> = (No. of adult fishes)/(Total no. of fishes) × 100
% = (4/10) × 100
<em>% = 40</em>
(5)
Percentage of sample that were juvenile fish -
<u>Percentage</u> = (No. of juvenile fishes)/(Total no. of fishes) × 100
% = (6/10) × 100
<em>% = </em><em>6</em><em>0</em>
(6)
Percentage of sample that were juveniles over 8 inches long -
<u>Percentage</u> = (No. of juveniles over 8 inches)/(Total no. of fishes) × 100
% = (1/10) × 100
<em>% = </em><em>1</em><em>0</em>