X-30+x-30+x=180
3x-60=180
3x=240
X=80
Answer:
The answer is 91
Step-by-step explanation:
90 x 6 = 540
The numbers need to equal 540 all together to make an average of 90.
97 + 86 + 83 + 95 + 88 = 449
540 - 449 = 91
To check:
97 + 86 + 83 + 95 + 88 + 91 = 540
Therefore, the answer is 91
Answer:
x=-2 y=0
Step-by-step explanation:
put the second equation in to the first one
-2x+x+2=4
-x=2
x=-2
y=-2+2=0
x=-2 y=0
Answer:
5/51 or 0.098
Step-by-step explanation:
#11
Each roll is 9' long,
length of each roll = 9' * (12"/foot) = 108"
Each ribbon piece = 15", so number of ribbons per roll
=108/15=7 with 3" left over, which is assumed not possible to be joined with other pieces.
Therefore, with 5 rolls, there are 7*5=35 pieces of ribbon, with 5 pieces or 3" left over.
