A math class is made up of 20 boys; the rest are girls. Eighty percent of the class is boys. How many students are in the math c lass?
2 answers:
Solve this problem by setting up a proportion to model the number of boys to the total number of students than the class: 80/100=20/x Now, cross multiply: 80x=2000 Then, divide 2000 by 80 to solve for x: x=25 25 is the total number students in the class. Hope this help
Part- 20 Percent- 80% Whole- ? For 80 to get to 20 we can divide by 4 20 80 -— = -— 100 Whatever we do to the top we do to the bottom! So we can divide 100 by 4 as well. That is 25. 20 -— 25 There are 25 students in the class. That’s how I learned. Hope it helped!
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Wht do you need help with exactly ?
The mistake Shawna made was in her answer the 54 repeats so the bar should be over the .54 not the .545
Answer:
I don't really know it but good luck!
Step-by-step explanation:
perimeter=4×6-1/4 ×2π×3=24-1/2×3.14×3=24-4.71=19.29cm
There are no solutions I can find. Mabye there are no solutions.
Sorry that I'm dumb- ;-;