Answer:
Her average is 75
Step-by-step explanation:
To be able to find the average of a group of numbers you must add them all then divide them by how many numbers that there are.
Step 1: Add all the values

Step 2: Divide

Step 3: Check your work

Step 4: Celebrate
You got the correct answer, now be proud of yourself.
The answer is 7
3x-3=18 (take 3 to the other side to solve for x)
3x=18+3 (3 will be positive)
3x=21 (divide both sides by 3)
x=7
Answer:
Its hard to explain but essentially the zero in the 10 and 100 place cancels out the decimal essentially
Answer:
1. The first one is 1/4
2. The 2nd one is 2/5
Step-by-step explanation:
This answer is right because I'm like that.
<u>Answer:</u>
<u>Step-by-step explanation:</u>
<u>We know that:</u>
- x = y
- 2(70 + 60) + x + y = 360
<u>Work:</u>
- 2(130) + x + x = 360
- => 260 + 2x = 360
- => 2x = 360 - 260
- => 2x = 100
- => x = 50
Hence, <u>the value of x is 50°.</u>
Hoped this helped.
