Using proportions, it is found that the average daily requirement for these adults is of 2080 calories.
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- Percentage problems are solved by proportions, using a rule of three.
- 1560 calories is 75% = 0.75 of the calorie requirement for many adults.
- How much is 100% = 1?
The rule of three is:
1560 calories - 0.75
x calories - 1
Applying cross multiplication:
The average daily requirement for these adults is of 2080 calories.
A similar problem is given at brainly.com/question/24738632
Y = 2.2x
to check let’s plug in numbers
6.6 = 2.2(3)
6.6 = 6.6
since it’s true it’s most likely the right answer :)
Answer is 4.) 15 girls.
If you go 27-5-4=18
18-5-4=9
9-5-4=0
so 5+5+5 (because it's 5 girls to 4 boys, only count the 5's) =15
Hope this helps! :)