12 1/2 (12x2+1)= 25/2
25/2 x 8/5 (we have to multiply8/5, not 5/8), so =200/10=20
answer is 20
Answer:
m = -3
b = 4
Equation: y = -3x + 4
Step-by-step explanation:
The equation for a straight line is y = mx + b.
The line crosses the y-axis at (0,4). So, b (the y-intercept) will be 4.
Now, to find m (the slope). The next point on the line is (1,1). To get there, you go down 3 units (-3) and to the right 1 unit.
Slope is known as rise (change in x-axis) over run (change in y-axis). So, -3 ÷ 1 = -3. m will be -3.
For the equation of the line, just plug the numbers into the equation for a straight line.
y = mx + b
y = -3x + 4
Hope that helps.
I worked it out as shown:
Answer:
The one with the better deal would be 30 ride tickets for $22.50 this is because you pay less money for more rides.
Step-by-step explanation:
First you divide 20 by 14. Doing this will give you the cost of a ride per ticket.
20/14 = 1.42
Then you do the same thing to 30 and 22.50.
30/22.50 = 1.30
Last you compare which deal has less money per ride.
1.42 > 1.30
