Math
posted by Anonymous .
omg thank you soo much for helping me and the 3 question is
4/x = 36/100 =
1.)Mrs. Neruda has 80 math student last year. This year she has 100 math students. What percent shows the ratio between the number of students last year and the number of students this year?
#2)A can of soda contains 39 grams of carbohydrates. This is 13% of the value recommended for a daily diet of 2,000 calories. How many grams of carbohydrates are allowed in this daily diet?
#3)4 36
 =  =
x 100
For the first question, 100=80x, x being the percentage decimal. x=1.25, so the percent is 125%.
For the second one, 39=0.13x. x=300, so you are allowed 300 grams of carbs.
I can't read the third problem.
Hope that helps!
OK  there are a few ways you can do this. One way is to cross multiply 4*100=36x. Then divide both sides by 36 to get x. Another way would be to see that 4 was multiplied by 9 to get to 36. So, what would be 100 divided by 9? x=11.1 repeating.
Respond to this Question
Similar Questions

math
mrs.wheelbarrow weasel is less than 100 years old.her year of birth is divisible by 23 and 17, as well as by one other prime number less than 30.when was mrs.wheelbarrow weasel born? 
Math Statistical #2
Research at the University of Toledo indicates that 50 percent of the students change their major area of study after their first year in a program. A random sample of 100 students in the College of Business revealed that 48 had changed … 
math
if attendance at a certain high school had incresed by 30 percent over lasy year, this years attendance would have been 1430. In reality, attendance fell by 35 percent from last year. what was this years attendance? 
MATH
THE TABLE SHOWS THE NUMBER OF STUDENTS PARTICIPATING IN THE SCHOOL DRAMA CLUB LAST AND THIS YEAR WHAT IS THEB PERCENT INCREASE IN STUDENT MEMBERSHIP FROM LAST YEAR TO THIS YEAR ROUND YOUR ANSWER TO THE NEARESTBN TENTH IF NECESSARY 
math
Sarah collects money for charity while treatortreating. This year she collected $15.80. Last year she collected $14.25. Find the percent increase for Sarah's collection from last year to this year to the nearest percent. $15.80$14.25=$1.55 … 
math
A 20yearold student decided to set aside $100 on his 21st birthday for investment. Each subsequent year through his 55th birthday, he plans to increase the investment on a $100 arithmetic gradient. He will not set aside additional … 
Math
So I have some math questions I'd like for some one to check :) 1. Rename 4/7 as a percent. Round to the nearest tenth of a percent if necessary. A. 47% B. 1.8% C. 57.1% D. 28% 2. Rename .709 as a percent. A. 709% B. 70.9% C. 79% D. … 
Math
1. Write the fraction 8/9 as a percent. Round to the nearest hundredth of a percent where necessary. 88.89% 1.13% 44.44% 66.67% 2.Write the decimal 0.041 as a percent 41% 4.1% 410% 0.41% 3.A survey at your school found that 792 in … 
math
During last year the number of students in RSM increased by 100%. This year, the number of students increased by 150%. What percent of the number of students now was the number of students two years ago? 
Math
The school band is compromised of middle school students and high school students, but it always has the same maximum capacity. Last year the ratio of the number of middle school students to the number of high school students was 1;8. …