4cups of salad blend contain 40% spinach is mixed with an unknown amount of salad blend containing 55% spinach the resulting salad contains 50% spinach how many cups of salad or in the resulting mixture

Let the unknown amount of 55% spinach salad be x.

Amount of spinach

40% * 4 + 55% * x = 50% * (4 + x)

0.4 * 4 + 0.55x = 0.5(4 + x)

1.6 + 0.55x = 2 + 0.5x

0.05x = 0.4

x = 0.4/0.05

x = 8

8 cups of 55% spinach salad were added to 4 cups of 40% spinach salad.

The total amount of salad made is 12 cups.

Hope this helped!

3/4 ÷ 3/4

step-by-step explanation:

basically divide any proper fraction with itself to fit the criteria.

so if we are using 3/4, then:

3/4 ÷ 3/4 = 1

so 1 is the quotient.

and the numerators for both these fractions is 3.   and if we divide the numerators:

3 ÷ 3 = 1

we see that quotient is equal to our original quotient as well.