Answer:
They are both wrong
Step-by-step explanation:
exponents are repeated multiplication. so it would be 2*2*2*2... that 28 times.
Answer:
45 girls
Step-by-step explanation:
- Remark
- There are only 2 choices for gender. So if the class is 60% girls, the there must be 100 - 60 = 40% for the boys.
- But we are told that the boys are 30 in number.
- Let x = the total number of students.
Solution
- 40/100 * x = 30 Change the % to a decimal
- 0.4 x = 30 Divide both sides by 0.4
- 0.4 x / 0.4 = 30 / 0.4 Do the division
- x = 30/0.4
- x = 75 students in total
Formula
Total of Boys and Girls = Number of boys + number of girls.
Givens
- Total = 75
- Number of boys = 30
Solution II
- 75 = x + 30 Subtract 30 from each side
- 75 - 30 = x +30 - 30
- 45 = x
- There are 45 girls in the class.
Answer:
1/3
Step-by-step explanation:
1
3 Liters of Fruit Punch.
3/9=1/3 Fruit Punch among the 9 glasses.
2x+3=3
I you're looking for x...
2x+3=3
-3 -3
2x=0
/2 /2
x=0
