Answer:
a, the number of pupils that like maths
b. we are given the number of students in the class and the percentage that like maths
c. percentage of students that like maths x total number of students
0.7 x 40
d. 0.7 x 40
28
Step-by-step explanation:
Number of pupils that like maths = percentage of students that like maths x total number of pupils in the class
(70 / 100) x 40 = 28 pupils
Answers:
surface area : (41.2x2) + (4x9x6) = 298.4 cm 2
volume: 41.2 x 9 = 370.8 cm 3
33 degrees
Step-by-step explanation
I used arcos, ∠A = arccos((a2 + b2 - c2)/2ab)
= 0.5795 rad = 33.203° = 33°12'11"
21 glasses can be filled
