Jaun has to use inverse before using those properties as they does not support subtraction but only addition.
<u>Solution:</u>
Given that , Juan used the expression 16 – 9 – 12 + 22 to find his profit for days 2 and 3.
He rewrote the expression as 16 + (–9) + (–12) + 22
Juan can use the associative and commutative properties to rewrite the expression again.
We have to explain why he had to use the additive inverse before he could use these properties.
Now, Associative property and commutative property true for addition.
i) a + (b + c) = (a + b) + c ---> Associative property of addition
ii) a + b = b + a --> commutative property of addition.
These properties not true for subtraction.
That's the reason Juan used additive inverse before applying these property.
Hence, jaun has to use inverse before using those properties as they does not support subtraction but only addition.
<span>v + 3/8 = -1/4
</span>v = -1/4 - 3/8
v = - 2/8 - 3/8
v = -5/8
Each person will pay $7 before taxes and tip.
Step-by-step explanation:
Price of salad = $4
Price of two salads = 4*2 =$8
Price of sandwich = $6
As 4 friends ordered sandwiches, therefore,
Price of 4 sandwiches = 6*4 = $24
Price of slice of cake = $3
Total = 2 salads + 4 sandwiches + 1 slice of cake
5 friends will split the bill evenly, therefore,
Bill for one person = 
Bill for one person = 
Each person will pay $7 before taxes and tip.
Keywords: addition, division
Learn more about addition at:
#LearnwithBrainly
"<span>9 1/4 ounces of fertilizer, 3/4 ounce of fertilizer for each plant."
Divide the total amt. of fert. by the amt. that goes to each plant:
9 1/4 oz
-----------------------
(3/4) oz per plant
Convert 9 1/4 to an improper fraction: 9 1/4 = 37/4.
Now divide 37/4 by 3/4, or divide 37 by 3. Result: 12 1/3 plants.
Ms. Marks can fertilize 12 plants and have 1/3 oz of fertilizer left over.</span>
