Answer:
11) 140/8 = 17.5
12) 38/3 = 12.667
13) 114/9 = 12.667
14) 7/2 = 3.5
15) 14/9 = 1.556
Step-by-step explanation:
To solve each problem you need to multiply the numerator by the whole number:
11) 7*20 = 140
12) 2*19 = 38
13) 6*19 = 114
14) 1*7 = 7
15) 7*2 = 14
Next, you put these numbers back into their corresponding numerators and divide:
11) 140/8 = 17.5 (You can simplify this fraction to 70/4 if needed)
12) 38/3 = 12.667 (This answer is rounded to the thousandths place)
13) 114/9 = 12.667 (This answer is rounded thousandsths place)
14) 7/2 = 3.5
15) 14/9 = 1.556 (This answer is rounded thousandths place)
**These are the improper fractions written as mixed ones** :
11) 17 1/2
12) 12 2/3
13) 12 2/3
14) 3 1/2
15) 1 5/9
I hope this helps!
Marcia dissolved 1 kg of salt in 3 litres of water.
Bobby dissolves 2 pounds of salt in 7 pints of water
2.11 pints = 1 litre
7 pints = 7/2.11
= 3.32 litre
1 pound =0.45 kg
2 pound = o.45*2 kg
= 0.9 kg
So we find that Bobby is dissolving 0.9kg of salt in 3.32 litre of water
Marcia is dissolving 1 kg of salt in 3 litres of water.
Answer:

Step-by-step explanation:
Given

Required
The average rate over ![[2,b]](https://tex.z-dn.net/?f=%5B2%2Cb%5D)
Average rate (m) is calculated using:

Where
![[a,b] = [2,b]](https://tex.z-dn.net/?f=%5Ba%2Cb%5D%20%3D%20%5B2%2Cb%5D)
So, we have:

Calculate f(b) and f(2)



So, we have:



Expand the numerator

Factorize

Factor out 3b + 6

Cancel out b - 2

Answer:
multiple the lenghth and weight
Step-by-step explanation: