Answer: D
Explanation: to find whether two instances are proportional, find the rate of change for each situation. Simply divide both numbers from both situations and if the numbers are not the same they are not proportional.
Answer: 5:1
Step-by-step explanation:
Answer:
46.28
Step-by-step explanation:
rectangle = 10×4 = 40 ft²
semicircle = 1/2×3.14×2×2 = 6.28 ft²
area of this figure is 40+6.28 = 46.28 ft²
Answer:
13
_
30
Step-by-step explanation:
5 2
_ - _ This problem is a no go bc the denominators aren't the same.
6 5
First you will need to find the common denominator. <em>It is 30</em>.
Next you will divide 30 by 6 and get 5. Now you know what to multiply the numerator by.
So, 6*5 is 30. 30 will now be your denominator. 5*5 is 25. 25 will be your numerator.
After you have done that you will move onto the fraction 2/5.
First, you will remember your common denominator, 30.
You will use that, and divide 30 by 5 and get 6. You now know what to multiply you numerator by. 2*6 is 12.
Your new problem looks like:
25 12 13
_ - _ _
30 30 30
13
_ Is in simplest form.
30
Hope this helps! Have a nice day/night!