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3241004551 [841]
3 years ago
8

on a math course, a student scored 95 on the test, 92 on the second test, 83 on the third test, 75 on the fourth test and 53 on

the fifth test and 70 on the last test. if the student has the opportunity to drop the test, with the lowest score, what's the student average in the class?
Mathematics
1 answer:
Sauron [17]3 years ago
4 0
So if he drops the lowest score (53) then just average the other scores
(95+92+83+75+70)/5=415/5=83
the average is 83
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R divided by 9 is the answer.
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Put these distances in order starting with the smallest.
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2 years ago
Given a line with equation 3x +7y = 21. write an equation in point-slope form of the line parallel to the given line through the
guapka [62]

Answer:

The equation of the line is y = -3/7x - 23/7

Step-by-step explanation:

To start we need to find the slope of the original line. We can do this by solving the equation for y.

3x + 7y = 21

7y = -3x + 21

y = -3/7x + 3

Now we know the slope to be -3/7. Since parallel lines have same slopes, we know the new line also will have a -3/7 slope. We can now use that along with the given point in point-slope form to find the equation.

y - y1 = m(x - x1)

y + 5 = -3/7(x - 4)

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8 0
3 years ago
1 1/3 ÷ 1/4 + 2/5 ÷ 1/4 + 4/15 ÷ 1/4 RSM QUESTION HELLLLLLLLLLLLLLLP
prisoha [69]

For this case we must simplify the following expression:

1 \frac {1} {3}÷ \frac {1} {4}+ \frac {2} {5}÷\frac {1} {4}+ \frac {4} {15}÷\frac {1 }{4}

We convert mixed numbers to improper fractions:

\frac {3 * 1 + 1} {3} ÷ \frac {1} {4} + \frac {2} {5}÷\frac {1} {4} + \frac {4} {15} ÷ \frac {1} {4}=

\frac {4} {3} ÷\frac {1} {4}+ \frac {2} {5}÷ \frac {1} {4}+\frac {4} {15}÷\frac {1} {4} =

We first solve the divisions:

\frac {\frac {4} {3}} {\frac {1} {4}} + \frac {\frac {2} {5}} {\frac {1} {4}} + \frac {\frac {4} {15}} {\frac {1} {4}} =\\\frac {4 * 4} {3 * 1} + \frac {4 * 2} {5 * 1} + \frac {4 * 4} {15 * 1} =\\\frac {16} {3} + \frac {8} {5} + \frac {16} {15} =

We rewrite the fractions:

\frac {16 * 5} {3 * 5} + \frac {8 * 3} {5 * 3} + \frac {16} {15} =\\\frac {80} {15} + \frac {24} {15} + \frac {16} {15} =\\\frac {80 + 24 + 16} {15} =\\\frac {120} {15} =\\\frac {24} {3} =\\8

Answer:

8

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Answer:

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