Turn hours into minutes
1hr = 60mins
Add the 60mins with 30mins since it’s 1hr and 30 mins. Which will equal 90mins
9miles/ 90minutes
You can simplify
1 mile/ 10 mins
So for 1 mile it takes 10 mins
And the problem is asking how much will it take for her to run 12 miles
Meaning it will take 120 minutes for her to run 12 miles.
To find the unit rate, we need to divide 6 by 51.
51/6 = 8.50
Kevin earns $8.50 per hour
17)
x² + 8 = -8
x² = -8 - 8
x² = 16
x = ±√-16
x = ±√16i
x = <span>±4i
</span>
18)
x² + 5 = -3
x² = -3 - 5
x² = -8
x = ±√-8
x = ±√8i
x = ±2√2i
19)
x² + 3 = 0
x² = -3
x = ±√-3
x = <span>±</span>√3i
hope this helps, God bless!
Answer:
Not probabillity of picking a green marble is 80%
Step-by-step explanation:
Mandy Increases her books by 2 per month.
Bill increases his books by 4 per month.
Month Mandy Bill
May 18 4
June 20 8
July 22 12
August 24 16
Sept 26 20
Oct 28 24
Nov 30 28
Dec 32 32
At the end of December they will have read the same amount of books.