Answer: In five months,she will save the same money which is $250.
Step-by-step explanation:
Using the first statement we can generate the function y=10x + 200 and using the second statement we can also generate the function y = 30x + 100 . Now using the two equations solve for x and y to determine how many months they cost the same.
y = 10x + 200
y = 30x + 100
Substitute the value of x in the first equation into the second equation.
30x + 100= 10x + 200 now solve for x
-100 -100
30x = 10x + 100
-10x -10x
20x = 100
x= 5
This means in five months Tina will save the same amount. Now to find out how much the amount is, plot the value of x into one of the equations and solve for y.
y = 10(5) + 200
y = 50 + 200
y = 250
She will save $250 with either option.
Answer:
13x+y=135
2x+2y=30
because when you substitute x (10) and y(5) you come out with the answer given to the equation
Maybe 45 but get someone else to check
Answer:
about 6 dollars
Step-by-step explanation:
round the prices then add
Step-by-step explanation:
7X + 34 + 9X +46 = 144
16 X =64
X= 4
so, m < ADC =82
