1. Answer: 24
<u>Step-by-step explanation:</u>
There are 4 cities to choose from. After visiting the 1st city, there are only 3 cities to choose from, etc (see below).
1st city and 2nd city and 3rd city and 4th city
4 x 3 x 2 x 1 = 24
2. Answer: 30,240
<u>Step-by-step explanation:</u>
There are 10 digits to choose from. After choosing the first digit, there are only 9 digits to choose from (because you can't have duplicate digits in the combination) (see below).
1st digit and 2nd digit and 3rd digit and 4th digit and 5th digit
10 x 9 x 8 x 7 x 6 = 30,240
Answer:
25 degree
Step-by-step explanation:
angle F = angle D
angle F + angle D + angle E =180 degree
so solve measure of angle F = (180-130) /2=25
The Answer to this question is D- They are Congruent
Answer:
200 units
Step-by-step explanation:
The total income must be at least equal to the costs, and that is:
10*U = 5*U + 1000 Solving for U, which is the amount of units sold per month:
U = 1000/5 = 200 units.
Hey there!☺


When you are solving an equation, it is important to use <em>inverse</em> operations. You will need to use the <em>inverse</em> operations on both sides of the equation. And it is also important to isolate the variable. After you do that, you will need to reverse it up. The way to do all of this is using the <em>inverse</em>.
To solve an equation, you use <u>inverse</u> operations.
Hope this helps!