Answer:
x≥−7
Step-by-step explanation:
Answer:
7. 69
Step-by-step explanation:
6x+3(x-7) when x=10
6(10)+3(10)-21
60+30-21
90-21
69
First one I think I really don’t know
Answer:
1) A system of two linear equations to represent this problem
x+y=20 and x-y=12
2) The numbers are x=16 and y=4
Step-by-step explanation:
Let x and y be the two numbers
Given that the sum of the two numbers is 20
That is 
and the difference is 12
That is 
1) A system of two linear equations to represent this problem


2). Noe Solve the system to find the 2 numbers:
Adding the equations (1) and (2) we get


_____________
2x=32

Therfore x=16
Now substitute x=16 in equation (1) we get


Therefore y=4
Therefore the numbers are x=16 and y=4
Answer:
Step-by-step explanation:
a. The sample space for this spinner would be A, B or C . Since these are the only possible outcomes in this specific spinner.
b. The spinner has a total of 6 sections but each letter has 2 sections dedicated to it. Therefore, this makes only 3 possible outcomes in which the spinner will only land on 1. This means that the probability of each letter would be 1/3