Two halfs equal one whole. think of it like this, an orange cut in half leaves you with two halfs, put them together and you have a whole. simple. multiplying by 2 just means adding a number two times.
1 half plus one half= 2halves= 1 whole
1half x 2= 2 halves=1 whole
63 divided by 9 is 7, so -7+7 is 0
Hope this helped
answer: for example there is 12 and there is -12, as we can see they are opposites from each other so that means they are eliminated. i hope it helps
Answer:
Let 'x' represent the money Alan needs to work to earn $120 (enough money for skateboard).
7.50x = 120
.......
........
x = 16 hr
Alan needs to work 16 hours to earn enough money for the skateboard.
Step-by-step explanation:
