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maggiegoodenough62
27.07.2019 •
Mathematics
Acollege student needs 11 classes that are worth a total of 40 credits in order to complete her degree. the college offers both 4-credit classes and 3-credit classes. which system of equations can be used to determine f, the number of 4-credit classes the student can take to complete her degree, and h, the number of 3-credit classes? a) f + h = 40 4h + 3f = 11 b) f + h = 11 4h + 3f = 40 c) f + h = 40 4f + 3h = 11 d) f + h = 11 4f + 3h = 40
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Ответ:
In this problem, there are 2 different equations. The first ones adds the 2 variables together to get a total of 11.
f + h = 11
For the second equation, each four credit class gets multiplied by 4. And each 3 credit class gets multiplied by 3. Then, they are added together to get 40.
4f + 3h = 40
Ответ: