Answer:
20%
Step-by-step explanation:
150 and 120 have a difference of 30
30 ÷ 150
.2 then multiply by 100
20 there is your answer
Hope this helped :)
Answer:
The mean is: 19
Step-by-step explanation:
Add all of those numbers up (133)
Divide it by the total amount of numbers (7)
133÷7=19
Answer:
2m+3r-2x-2y
Step-by-step explanation:
2m+3r=2m+3r
-2×x=-2x
-2×y=-2y
answer=2m+3r-2x-2y
Answer:
A. 
B. 
C. 
Step-by-step explanation:
A. . Any number could work as long as the coefficients for x and y stays the same. You are basically imposing that the quantity 2x-4y (if you bring 4y to the LHS) is equal to both -3 AND 
, or any number you like. But yesterday was 3/14 so let's pick a fun number!
B. Or 
. Or as long as you don't pick the same ratios of x and y you're golden. But x=1 is the easiest that comes to mind
C. . To get infinitely many solutions you just have to rewrite the equation again. Maybe move things around if you prefer, or multiply everything by a number you lile.
