Well if you have 60 and she has 120 i will set it out as a sequence week by week 60,67,74,81,88,95,102,109,116,123,130,137,144,151,158,165,172,179,186,193,200,207,214,221,228,235,242,249,256,263,270 120,125,130,135,140,145,150,155,160,165,170,175,180,185,190,195,200,205,210,215,220,225,230,235,240, 245,250,255,260,265,270 it would take 31 weeks and the total is 270
First you have to multiply 1,500 by 65%. A way to do that is 1,500 x 65 and then divide by 100. So 1,500 x 65 is 97,500. 97,500 divided by 100 is 975. The final answer is that there are 975 girls in the school.
1. This paragraph describes an observational study.
It is not a controlled experiment because the guidance counselors didn't plan to separate the students into 2 groups and then observe the results. They instead checked records.
2. The students who took Latin are the treatment group.
3. The fact that students decided on their own to take Latin is a confounding factor.
4. The students who did not take Latin are the placebo or control group.
