Answer:
(1).(C) Commutative property.
(4).(D) 3
(3).(D) 75
Step-by-step explanation:
(1) Commutative property of addition states that if two number p and q are real. Then, it doesn't matter in which order the numbers are added it will provide the same result. i.e.
<em>p + q = q + p</em>
Therefore, -8 + (-15) = (-15) + (-8) is an example of commutative property.
(2) - (q+14) = (-3) + (-14)




(3) -10 + <em>a </em>+ (-15) = 50


The number of students in Mr. Boggs’s homeroom is equal to b. Add the total number of students in each class and set it equal to 90.
90 = b + 1.5(b + 2) + 15 + (2b – 9)
Use the Distributive Property, and collect like terms. 90 = b + 1.5b + 3 + 15 + 2b – 9
90 = 4.5b + 9
Answer:
B. Over the past few months, Cesar's cell phone bill has doubled from the previous month.
Step-by-step explanation:
Answer: (6 x 100) + (2 x 1) + (4 x 0.01) + (9 x 0.001)
Answer:
p=(9-5r)/6
Step-by-step explanation:
6p+5r=9
or,6p=9-5r
p=(9-5r)/6