Answer:
2m + 10 can not be combined as they are not like terms.
However if you are looking to simplify the expression, it would be 2(m+5)
Expression: ÷
Answer: 45 ÷ =
82
Step-by-step explanation:
let X = the number of hamburgers sold
let Y = the number of cheeseburgers sold a combined total of 328 were sold
so: X + Y = 328
cheeseburgers = 3 times the number of hamburgers sold
so: Y = 3X
substitute 3X into the equation for Y
X + 3X = 328
4X = 328
divide both sides by 4 to get the variable X by itself
X = 82
so: 82 hamburgers were sold Friday
For your question: "A teacher wants to investigate whether listening to music while taking a math test increases scores. He instructs half
of his 36 students to listen to music while taking a test and the other half to not listen to music during the test. To
determine who listens and who does not, the teacher identifies the two students who scored highest on the last test
and randomly instructs one to listen to music and one to not. The teacher does the same for the next two highest-
scoring students and continues in this manner until each student has their instructions. Which of the following best
describes this plan?"
The answer is D
48
First find the median:
16,26,48,56,61,85,88,88,88,91,91
85 is the median.
Now, find the median of the first set of bold numbers.
<u>16</u>,<u>26</u>,48,<u>56</u>,<u>61</u>
The median of the first bold set of numbers will be lower quartile.
The lower quartile is 48.
