# Posts by peggy

Total # Posts: 104

**Algebra**

A coffee merchant has coffee beans that sell for $9 per pound and $12 per pound. The two types are to be mixed to create 100 lb of a mixture that will sell for $11.25 per pound. How much of each type of bean should be used in the mixture? My problem is that I can't figure ...

**algebra**

Find the slope of the line through the given points. (2,4) (6,-3). m=y2-y1 over x2-x1. (-3)-(4) over(6)-(2) -3-4 over 6-2 -7 over 4. I plotted the two coordinates (2,-4) (6)(-3), and the slope is -7 over 4, right? How do you plot the slope? I think you intended to write that ...

**Algebra**

I need help on this one too, please. Solve for X. 3x-2y=6 I got x=6+2y/3. My question is this: Can this be reduced down to x=2+2y? You really need to use parentheses here. x = (6+2y)/3 or you might want to show it as 2+(2y/3) or 2+(2/3)y

**algabra**

A cylinder has a radius of 5 in. If the volume of the cylinder is 250 pie inches cubed, What is the height of the cylinder? pi*r^2*h=250*pi pi cancels. solve for h r^2*h=250 h=250/r^2?? This is what I got originally. 250=pie(5)squared *h. 250= pie 25 h 10= pie h h= 10 over pie...