This system should use substitution because the value of y is given in terms if x.
Substitution:
5x+7=2x+10
Solve:
3x=3
x=1
Substitute x to solve for y by plugging x into one if the original equations(doesn’t matter which one is used).
y=5x+7
y=5(1)+7
y=5+7
y=12
#2)
Answer:
x=-8 and y=2
Explanation:
y=2x+18
9y=-2x+2
This system also uses substitution. The value of y us already given in terms if c in the first equations, so we will substitute in the second equation.
Substitute:
9(2x+18)=-2x+2
Solve:
18x+162=-2x+2
20x=-160
x=-8
Now that we have the value if x, plug it into one of the original equations(doesn’t matter which equation) and substitute to find y.
Convert 8% too decimal form = 8/100 = .08 1250 * .08 = 100 1250 + 100 = 1350 To find out how many payments of 120 can be made : 120x = 1350 divide both sides by 120 x = 11.25 payments of $120 since .25 is a fraction calculate the actual $ amount by mult. 120 * .25 = $30 The last payment is $30
For the answer to the question above,<span> I will show my solution below.</span><span> </span><span>I = 30,000 wetsuits T = I/R = 30,000/15,000 = 2 months = 60 days</span>The answer is <u><em>60 days</em></u> <span />I hope this helped you. Have anice day!