Answer:
As marked, the only true statement is the first one
Step-by-step explanation:
Jeff's mean score is 78
Dalton's mean score is 77
Jeff's median score is 77
Dalton's median score is 77
Answer:
21, 22, 23
Step-by-step explanation:
Construct equations representing each piece of information.
Three consecutive integers are three numbers in a row, for example, 1, 2 and 3.
Let's let
Integer 1 = X
Integer 2 = Y
Integer 3 = Z
X = (Y + Z) - 24
We also know that
Y = X + 1
and Z = X + 2
We can now sub this information into the first equation. We do this so that we can have only one variable in the equation.
X = (X+1) + (X+2) - 24
now solve for x,
X = 2X + 3 - 24
X = 2X - 21
-X = - 21
X = 21
So, the integers are 21, 22, 23
Answer:
the second girl was. 59 seconds faster than the first girl.
Step-by-step explanation:
14.47-13.88= .59
Answer:
135
Step-by-step explanation:
Order of Operations: Parentheses first, then power, then division!
6^2 + 17 + 12
First, let's start with

. Basically, the '2' above the 6 indicates that the number appears twice in multiplying.

can be described as 6 × 6 as well. 36 should be your answer for 6 squared.

Second, our problem should look like: 36 + 17 + 12. One can simply do this on a calculator or count on their fingers. Once you add all of the numbers up, you should get 65.
Answer: