Answer:
Step-by-step explanation:
<u>Paul used the following identities:</u>
<u>Anthony used the identity:</u>
Answer:
−12≤p≤12
Step-by-step explanation:
Absolute value so the positive and negative of p.
p ≤ 12
-p≤12
divide by -1 (switch sign)
p≥- 12
P is greater than or equal to -12 but less than or equal to 12:
−12≤p≤12
Answer:
the cost of one hot chocolate is $2.
Step-by-step explanation:
Let x be the hot chocolate cost and y be the newspaper cost.
Given:
A newspaper and three hot chocolates cost $7
So, the equation is
--------(1)
Two newspapers and two hot chocolates cost $6
So, the second equation is.
---------(2)
Find one hot chocolate cost?
Solve equation 1 for y.


Put y value in equation 2





negative sign is cancelled both side.


Therefore, the cost of one hot chocolate is $2.
Answer:
a. n= 1x +7
b. n= 12 + 4x
Step-by-step explanation: