Answer: 12.5
Step-by-step explanation:
x/10 = 10/8
reduce the fraction with 2
x/10=5/4
simplify the equation using cross-multiplication
4x=50
divide both sides by 4
x=25/2
or
x=12.5
If all 22 tables had 6 people, there would be 132 people seated. There are 13 more than that, so 13 tables have 7 people.
A=πr^2s/360 multiply both sides by 360
360A=sπr^2 divide both sides by πr^2
s=360A/(πr^2)
Answer:
cups of pineapple juice .
Step-by-step explanation:
Equation of direct proportion between x and y:

As per given,
Let x = quantity of pineapple juice and y = quantity of orange juice.
,
, 
Put these values in an equation we get

Hence, he needs
cups of pineapple juice .