School X and school Y play each other in a competition

School X has eight more points than school Y
School X has three times as many points as school y
#How many points does each school have.

school  

y points (y)=4

x=12

Step-by-step explanation:

y+8=x

3y=x

use elimination method multiply first equation with minus it becomes

-y-8= -x

3y-y-8=x-x

2y-8=0

y=8/2

y=4

so

x=3(4)=12

wholesale price is the initial price before markup. retail price comes after the markup.

a price of 8 bucks that's marked up by 100%   is

formula: initial price + (percent markup in fraction/decimal)(initial price)

8+(1)(8)

8+8

16

retail price is $16.

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.