Answer:
<u>41 years ago</u>
Step-by-step explanation:
Let the no. of years ago be x.
Then, the equation we need would be :
=> 80 - x = 3(54 - x)
=> 80 - x = 162 - 3x
=> 2x = 82
=> x = 41
Sally's mother was 3 times her age <u>41 years ago</u>
Checking
=> Sally = 54 - 41 = 13
=> Mom = 80 - 41 = 39
=> 13 x 3 = 39 [∴Verified]
The answer is D.
To find the mean you add all the numbers together and divide them by how many numbers there are.
22 + 37 + 49 + 15 + 72 = 195
195/5 = 39
Therefore, the answer is 39.
What your question i can help you
Answer:
Illustration (A)
Step-by-step explanation:
An Illustration a book or newspaper or something else that gives a brief explanation on a topic which helps us understand. Like a print feature, I could draw and make a article on a Print feature.
Answer: D. domain; x>-2; range: y>0; Yes, it is a function
Step-by-step explanation: