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leonid [27]
3 years ago
8

a college 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
Mathematics
1 answer:
Rasek [7]3 years ago
8 0
I’m not entirely sure but I think it’s D
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charle [14.2K]

Answer:

2.5

Step-by-step explanation:

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3 0
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6 0
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Ludmilka [50]

Answer:

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Step-by-step explanation:

Given: One day, Jean saw 7 birds. The next day, she  saw 11 birds. The next day, she saw no birds.

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Solution:

Average is a central value of a set of terms.

Average of terms x_1,x_2,x_3,...,x_n is given by \frac{x_1+x_2+x_3+...+x_n}{n}

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Number of birds, Jean saw on the second one (x_2)  = 7

Number of birds, Jean saw on the third one (x_3) = 7

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Therefore,

Jaw saw an average of 6 birds each day

6 0
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