Item 31 forty students are in the science club. of those, 45% are girls. this percent increases to 56% after new girls join the
club. how many new girls join?
1 answer:
40 represents a total, but then 45% represents a part. First of all, let's find the amount of girls in the club.
45% of 40
= 18 girls
If it was increased to 56%:
56% of 40
= estimated 23, since we can't have two fifths of a person.
23 - 18 = 5 new girls joined.
You might be interested in
The answer to your question would be 60 percent all you do is divide that and move the decimal 2 places to the left.
Laura is 72 inches tall.
1 feet= 12 inches
12*6=72
Answer:
C = -6
Step-by-step explanation:
C = [2×1/4 + 1] ÷ [3×1/4 -1 ]
C = 3/2 ÷ -1/4
C = 3/2 × -4 = -6
C = 2d + 1 / 3d - 1
So, d = ( C + 1 ) / ( 3C - 2 )
The answer is 7
steps:
7*5=35
7 squared is 49
49-35=14
X + (x + 2) + (x + 4) = 87
3x + 6 = 87
3x = 81
x = 27
The numbers are 27, 29, and 31
