Share 747 pounds in the ratio 2: 7 between tom and ben

If you want to share 747 pounds between Tom and Ben in ratio 2:7, then you should divide 747 by 2+7=9 in order to determine how many pounds will one part of 9 parts.

747:9=83.

Then Tom should get 2 such parts, that is 83·2=166 pounds and Ben should get 7 such parts, that is 83·7=581 pounds.

you should give 166 pounds to Tom and 581 pounds to Ben.

(x, y)→(x − 8, y − 7)

step-by-step explanation:

enjoy!

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