Answer:
8x + 11= 315
Step-by-step explanation:
Let x = the number of students in a bus
There are 8 buses
8x is the number of students in buses
There are 11 students in cars
Add this together to get all the students, which is 315
8x + 11= 315
r = √(3V/πh)
multiply both sides by 3 to eliminate the fraction
πr²h = 3V ( divide both sides by πh )
r² = 3V/ πh ( take the square root of both sides )
r = √(3V/πh)
<u>Answer:</u>
24
<u>Step-by-step explanation:</u>
Let the number we are looking for =
.
∴ According to the question:
÷ 8 = 3
• Multiply both sides by 8:
= 8 x 3
= 24
Answer:
15
Step-by-step explanation:
10.50/x = 70/100
cross multiply
70x =1050
isolate
devide by 70 on both side
x=15