1 answer:
Answer:
Only the mean increased.
Step-by-step explanation:
The mean is the total divided by the number of scores, and since adding 21 will increase the total score significantly, the mean increases.
The median is still 7.
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Answer:
equation form: x=-131/8y -31/40
Step-by-step explanation:
this is addition/elimination
This is what it looks like. It opens to the right.
Expanded form is when you write a number using like the hundreds tens and ones places. Example: 521 = 500+20+1
Answer:
Step-by-step explanation:
33
Answer:
x=25/2
Step-by-step explanation:
8-2x-8=-17-8
-2x=-25
-2x/2= -25/2
