Change X and Z. X is first evening
Y is second
Z is third evening
Answer:
• subtract eqn(b) from eqn(a);
• find x :
Answer:
6 people
Step-by-step explanation:
12/2 is 6 people on each pie
Answer:
45
Step-by-step explanation:
OK, first we turn the variables into into the actual values:
The equation will look like this:
(2)5 + (-5)(-7)
Now its easier to solve! Lets solve (2)5!
2 * 5 = 10
The equation looks like:
10 + (-5)(-7)
We will also solve (-5)(-7). Remember that a negative number times a negative number is positive!
-5 * -7 = 35
Lets finish the rest:
10 + 35 = 45.
Hope this is correct and have a nice day!
Answer:
i think a
Step-by-step explanation:
