Answer: b=9
Step-by-step explanation: To find the slope we use: y2-y1/x2-x1
Which would then be: 5-b/-2-7= 5-b/-9
Then we have to find a number for b that would give us -4 as the numerator. That number would be 9
This would give us 4/9 which is the slope we already had.
Answer:
we know that,
y-y1=m(x-x1)
or, y-1=-3(x-5)
or, y-1=15-3x
or 3x+y-16=0 is the required equation
a) 4:7:3
b) 4:7 / 20:35
c) 3:7 / 15:35
You will pay $42.50
Step-by-step explanation:
You will pay 50-7.5 which gives you 42.50
