Marty buys 12 ounces of granola.
a. what fraction of a pound of granola did marty buy?
b. if a whole pound of granola costs $4, how much did marty pay?

a. 3/4 Pounds  b. $ 3 he paid

Step-by-step explanation:

Topic: Rule of Three and Convertion Factors

You have to remember the concept of rule of three and know what is teh convertion factor for ounces to pounds.

The convertion factor is

Then you use the converstion factor to transform ounces to pounds using a rule of three, like this:

Remember how to find x?

So you have that in pounds Marty 0.75 Pounds of Granola

Remember how to transform decimals to fractions?

you can multiply by a hundred and divide by hundred having that:

by simplifying you hace that the fraction of pounds Marty Bought is 3/4

a. Marty bought 3/4 pounds of granola

b. if a whole pound costs $ 4 you can use another rule of three like this

Solve again for x and you have that

so you have that Marty paid $ 3 for 3/4 pounds he bought

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

a 270° rotation about point p says on e d g e n u it y (had to space it out because it says it's a misspelling so i couldn't submit it