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.
Let's break down each of the questions and explain how to arrive at the answers step by step.
1. Mrs. Neruda had 80 math students last year and 100 math students this year. We need to find the percent that shows the ratio between the number of students last year and this year.
To find the ratio, we divide the number of students this year by the number of students last year:
100 / 80 = 1.25
The ratio is 1.25. To express this as a percentage, we multiply the ratio by 100:
1.25 * 100 = 125%
Therefore, the ratio between the number of students last year and this year is 125%.
2. A can of soda contains 39 grams of carbohydrates, which is 13% of the recommended value for a daily diet of 2,000 calories. We need to find the number of grams of carbohydrates allowed in this daily diet.
To find the number of grams of carbohydrates allowed in the daily diet, we need to set up a proportion. We know that 39 grams is 13% of the total, so we can set up the following equation:
39 / x = 13 / 100
Cross-multiplying, we get:
39 * 100 = 13 * x
Simplifying, we have:
3900 = 13x
Dividing both sides by 13, we find:
x = 300
Therefore, you are allowed 300 grams of carbohydrates in this daily diet.
3. It seems like there might be a formatting issue with the third question, as it appears incomplete. It shows two fractions, 4/x and 36/100, but there seems to be a calculation missing.
To solve the given equation 4/x = 36/100, we can cross-multiply. It means multiplying the numerator of one fraction by the denominator of the other fraction.
Cross-multiplying, we get:
4 * 100 = 36 * x
Simplifying, we have:
400 = 36x
Dividing both sides by 36, we find:
x = 400/36 ≈ 11.11 (repeating)
Therefore, the value of x is approximately 11.11 (repeating).