In a mathematics test, shane scored 17 marks more than tom while sophie 's score is twice of tom 's score. if their total is 161 , what is shane ' s score?
( linear equations)

Let Tom = x

Then Shane is x +17 ( 17 more than Tom)

Sophie  = 2x ( twice Tom's score)

Now you have:

X  +(x+17) + 2x = 161

Simplify:

4x +17 = 161

Subtract 17 from both sides:

4x = 144

Divide both sides by 4:

x = 144 / 4

x = 36

Shane = x +17 = 36 +17 = 53

nope.   happens to me as well.

-aparri

too many. (jk)

31 v bucks

step-by-step explanation:

since you bought 25 on friday and 6 on tuesday, you can just add them up.

25+6=31

check your work.

31-6=25

i hope this !

-yand3r3