The opposite of -4 is 4. (:
First, you look for a common denominator, which is 20. Since 2 is a multiple of 20, you need to multiply it by 10. Since you multiplied it by 10, you also need to multiply the numerator by 10, giving you 10/20. Remember, you do not multiply the whole number in front of the fraction. You also do the same thing with the first one. Since you need to multiply the denominator by 4, you also need to multiply the numerator by 4, making it 16/20. Now that you have all of the denominator the same, you can now figure out the order from least to greatest by looking only at the numerator. I trust you that you know which ones are greater and which one are lesser.
I hope i helped you. Reply back if you don't understand anything.
Answer:
- a) NTRD standard price = $26.30
- b) range: $11.20 to $33.00, a range of $21.80
Step-by-step explanation:
a) The average is the sum divided by the number of contributors. Let n represent the standard price at Night-Time Rest Days. Then ...
... ($22.45 +18.55 +24.50 +11.20 +n)/5 = $20.60
... 76.70 + n = 103.00 . . . . multiply by 5 and collect terms
... n = $26.30 . . . . standard price at NTRD
b) The lowest standard price is $11.20. The highest breakfast price is $33.00. The range is the difference between these ...
... $33.00 -11.20 = $21.80 . . . . range in cost for a single night
1 frequency is 1
2 is 3
3 is 4
4 is 3
last is 3
that's all I understand
hope it helped
