2ft3 of clay was mixed into 7ft3 of soil containing 55% clay. What is the clay content of the mixture?

Given:

2 ft³ of clay was mixed into 7 ft³ of soil containing 55% clay.

To find:

Clay content of the mixture.

Solution:

We have,

55% of soil is clay. So,

Clay in soil= 55% of soil

2 ft³ of clay was mixed into the soil. So, the total clay content of the mixture is

Therefore, the clay continent in the mixture is 5.85 ft³.

d. you cannot tell because there are no values shown.

an = 22 + (n-1) *6

110 seats

step-by-step explanation:

an=a1+(n-1)(d)

a1 = 22   this is the first item in the sequence

d =6   this is how the sequence goes up

a)   an = 22 + (n-1) *6

b) a12 = 22 + (12-1) *6

    a12 = 22+11*6

  a12 = 22 +88

  a12 = 110