You have eaten 70% of your Halloween candy. You counted all the empty wrappers and you count 140 empty wrappers !!! How many peices of candy did you have to begin with ?

200 pieces of candy.

Step-by-step explanation:

Let x represent the amount of candy we had to begin with.

We ate 70% or 0.7 of our starting amount x.

After eating 70% of x, we are left with 140 empty wrappers.

Therefore, 70% or 0.7 of x is 140. So, we can write the following equation:

To find the original amount of candy, we just have to solve for x.

So, let’s divide both sides by 0.7:

Therefore, we started out with 200 pieces of candy.

answer: there are 453.592 grams in a pound.

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2