I agree with the answer above
Answer:
It is x=−92 .
Step-by-step explanation:
To find a number between both decimals, what you can do is take the average of both numbers.
We have then:

Rewriting we have:

Therefore, the decimal obtained is a number between 0.4 and 0.5
Answer:
a decimal between 0.4 and 0.5 is:

First, combine like terms.
12y+6=6y+12 turns into
12y-6y=12-6, which is
6y=6. Now divide both sides by 6.
y=1
now do a quick check (cause that's always a good idea).
12(1)+6=6(1)+12
12+6=6+12
18=18 ; )
Answer:
300 balloons.
Step-by-step explanation:
Given:
210 balloons are filled for a reception this is 70% of the entire number balloons purchased.
Question asked:
Which equation can be used to find the total number of balloons purchased ?
<u>Solution:</u>
Let total number of balloons purchased = 
70% of the number of balloons purchased = 210

Therefore, total number balloons purchased was 300.