Basically, you're solving a proportion.
the proportion would be:
40/100 = 10/x
40 goes over 100 since it's a percent, and 10 and 40% are equal since 10 of the students in the art class represent 40% of the total number of students. X represents the missing info, which is the total number of students.
Now, you just cross multiply:
40(x) = 40x
10(100) = 1000
Since that's done, you now divide 1000 by 40, which equals 25.
There are 25 students in the art class :)
Answer:
47 Ducks and 7 piglets.
Step-by-step explanation:
Lets try 27 of each to start
Ducks Piglets Total legs
27 27 54 + 108 = 162. Too many
30 24 60 + 96 = 156 Too many. Increase the ducks by 10:
40 14 80 + 56 = 136.
50 4 100 + 16 = 116 This < 122 so ducks between 40 and 50..
45 9 90 + 36 = 126 Too high so increase ducks:
46 8 92 + 32 = 124 Close.
47 7 94 + 28 = 122.
Answer:These points lie on a line with slope, or constant increase, of 3. Substitute this slope and the point (1, 4) in the point-slope form of the equation of a line.
Step-by-step explanation:
These points lie on a line with slope, or constant increase, of 3. Substitute this slope and the point (1, 4) in the point-slope form of the equation of a line.
Answer: answer is A
Step-by-step explanation:
Because