Melissa spends 3.16 bc 8 divided by 2 =4 now 4 times .79 = 3.16
Use point-slope formula---> y-y1=m(x-x1)
Let y1 equal -9, let x1 equal -10, and let m equal 3
Plug in and solve
y-(-9)=3(x-(-10)
y+9=3(x+10)
y+9=3x+30
Subtract nine from both sides
y=3x+21(This is slope form, i might have gone too far)
Answer:
Step-by-step explanation:
3/9 = 2/w
Cross multiply.
3w = 18
w = 6 cups