set up the equation 0.6x=18 where x is the number of people at the playground
divide both sides by 0.6 to get 30 people at the playground
15-5=10
2n=10
n=5
distribute and combine like terms to get -x=11
then divide both sides by 1 to get x=-11
now you do the checking. :)
hint: rewrite the equation with a denominator.
61/7=8 R5 so the answer is 8
this is simply 10*2/3=20/3
just ignore the base and just look at the exponent
so the equation becomes (x)+(x+1)+(x+2)+(x+3)=15/2.
combine like terms -> 4x+6=15/2
subtract 6 from both sides and divide both sides by 4 to get x=3/8
It's A. -17.34/3=-5.78 (It may look like C but they use the word "descended" so yeah.)
There are no solutions.
steps:
1. distribute.
2. subtract 6x from both sides.
3. subtract 12 from both sides to get 0=-10 which obviously isn't true
so there are no solutions.
Oh. I misread my own post. :P I though 350 was included. Sorry. :(