Answer:
There would be 8 red marbles and 47 purple marbles.
Step-by-step explanation:
In order to find this, we can first set the amount of red marbles as x. Once we do this, it is possible to model the number of purple marbles as 5x + 7. Knowing this, we can add the two together and set equal to 55.
x + 5x + 7 = 55
6x + 7 = 55
6x = 48
x = 8
With 8 red marbles, we know the rest must be purple (47)
Answer:Roots: 3;2;-1
Step-by-step explanation: i use horner's scheme for approximating the roots of polynomials
Answer:
14 balls will be pink out of 21 balls.
Step-by-step explanation:
Given that:
2 out of every 3 balls are pink in a multi color package.
Ratio of pink balls to balls drawn = 2:3
Number of balls in package = 21 balls
Number of pink balls = x
Ratio = x:21
This is a proportional relationship
2 : 3 :: x : 21
Product of mean = Product of extreme
3x = 21*2
3x = 42
Dividing both sides by 3

Hence,
14 balls will be pink out of 21 balls.
First you need to put everything as 1 unit. I'll convert both to fractions for now.
75% = 3/4
680/1 * 3/4
Cross Multiply
2040/4
Simplify
510
The mayor received 510 votes.
Answer:
8/3
Step-by-step explanation: