James want to buy a vidoe game system that cost $310.00 his parents say james must raise 45% of the money himself. how much money must james raise a $124.00 b $135.00 c $139.50 d $170.50

James must attain $139.5 for his game system.

Step-by-step explanation:

When dealing with percentages, keep in mind that a full percentile is 100% which equivalent to 1 whole. So to find your answer, start with moving the decimal in the percentage to the left by 2. Meaning that 45% will be translated to .45. Multiply $310 by .45 and your answer will come out to be $139.50.

1) Slide decimal 2 places left in percentage (45% = .45)

2) Multiply new decimal by total (310 x .45)

3) All done! ($139.50)

(0,-3) see attached graph

step-by-step explanation:

a. to solve the system, graph the two equations.

x = y+3 becomes y=x-3 has m=1/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move up 1 unit and 1 unit to the right. plot a point and connect.

y=-4x+3 has m =-4/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move down four units and to the right 1 unit. plot a point and connect.

the solution is the point (x,y) where the two lines intersect. by the graph below it is (0,-3).

b. to solve by substitution, substitute y = -4x-3 into x= y+3

x= (-4x-3) +3

x=-4x

5x=0

x=0

now substitute x = 0 back in to find y.

y= -4(0)-3

y=0-3

y=-3

solution is (0,-3)

c. use elimination by adding the equations together.

x-y=3

4x+y=-3

5x=0

x=0

then substitute into one equation to find y.

y=-4(0)-3

y=-3

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.