Answer:
x=8a
Step-by-step explanation:
(3/a) x - 4 = 20
add 4 to both sides
(3/a) x = 24
Divide by 3/a
x = 24 / (3/a)
Use KCF (keep change flip)
x = (24/1) x (a/3)
x = 24a / 3
simplify
x = 8a
Subtract 15 from both sides of the equation
Simplify
Divide both sides of the equation by the same term
Simplify
ANSWER: x= 52/9
Answer:
She should order 12 pizzas.
Step-by-step explanation:
5 pizza for every 20 students gives us the ratio 5:20.
5/20 = 0.25 = the amount of pizza each student gets.
If there are 48 students, you would just multiply 0.25 * 48 to get your answer.
