Answer:
Step-by-step explanation:
1.you have to set up a proportion(x/120 = 20%/100%
2.you have to cross multiply
3.you have to divide 100x by the number you get
4.you got your answer.
<span>450
Camila started with 450 cards. She gave Erin half of them (225) and her brother a sixth of them (75). She was left with 150 cards (450 - 225 - 75 = 150).
If x = number of cards Camila started with, then x/2 = half the cards and x/6 = one sixth of the cards. 150 = number of cards left.
This can be represented as:
x - x/2 - x/6 = 150
Multiply by 6 and solve for x
6x - 3x -x = 900
2x = 900
x = 450 = number of cards Camila started with</span>
Answer:
a =-6
Step-by-step explanation:
4a+5=2+3.5a
Subtract 3.5a from each side
4a-3.5a+5=2+3.5a-3.5a
.5a +5 = 2
Subtract 5 from each side
.5a +5-5 = 2-5
.5a = -3
Divide each side by .5
.5a/.5 = -3/.5
a =-6
Answer:
the answer are B,=6506/82=79.3
C)7031/89=79
the answer are B and C
but maybe option C maybe also right because it is 3193/38=84
