Oliver is 6 more than twice as old as Sam. If Oliver is 21 how old is Sam?

Sam is 7 and 1/2 years old.

Step-by-step explanation:

Let Sam be x years old. Then we have the equation:

2x + 6 = 21

2x = 21-6 = 15

x = 7.5.

7½yrs

Step-by-step explanation:

Sam = x

Oliver = 6 + 2x

Sam = (21-6) ÷2

Sam=15÷2

Sam=7½yrs

hi there!

first we need to find out how much they are adding to each number to make the next number.

ex: 4 + 4 = 8, 8 + 8 = 16, and so on.

so continuing with 32,

32 + 32 = 64

64 + 64 = 128

128 + 128 = 256

256 + 256 = 512

4, 8, 16, 32, 64, 128, 256, 512

the 8th term of the sequence will be 512

hope this ! ~

8/k

step-by-step explanation: