Paolo is using his grandmother’s cookie recipe. He always doubles the amount of chocolate chips and oats. The recipe calls for 212 cups of chocolate chips. The total amount of chips and oats after doubling is 613 cups. Write an equation to find the original amount of oats, x, in the recipe.

The original amount of oats were 94.5. If you want to find the answer you would first have to multiply 212 with 2 because it said that Paola always use double to amount. After you get it, you subtract it with 613 cup cause that is the total amount of chip and oats after doubling. Then you will have to divide the double amount of oats which is 189 with 2 and then you get the answer of 94.5.

212x2=424, 613-424=189, 189 divide 2=94.5

so then what are you asking?

step-by-step explanation:

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4