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blagie [28]
3 years ago
10

Ms. Casey grades 4 tests during her lunch. She grades 1/3 of the remainder after school. If she still has 16 tests to grade afte

r school, how many tests are there?
Mathematics
1 answer:
CaHeK987 [17]3 years ago
6 0

Answer:30 tests

Step-by-step explanation:

16=2/3 -4

20=2/3

10=1/3

30tests

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A line goes through the origin and the point (6, 14). The point (2, y) is also on the line. Calculate y and justify that your va
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Answer:

Step-by-step explanation:

The key here is knowing that the equation of the line that passes through these points is same

Thus having (6,14) and (0,0), the slope is as follows;

m = y2-y1/x2-x1 = 0-14/0-6 = -14/-6 = 7/3

Now we can use this slope here to get the value of y in the question

All we need to do is tie write the equation of the line for between the points (6,14) and (2,y)

That would be;

7/3 = y-14/1-6

7/3 = y-14/-5

cross multiply;

-35 = 3(y-14)

-35 = -3y + 42

-3y = -35-42

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y = -77/3

y = 77/3

3 0
3 years ago
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grigory [225]

Answer:

7.

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8.

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7 0
3 years ago
7.5 miles in​ 1/4 hour
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4 0
2 years ago
A rectangular frame measures 2 feet by 4 feet. How much money will I need to make this frame if wood is $6.00 a yard?​
inysia [295]

You will need 16 dollars

Step-by-step explanation:

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7 0
3 years ago
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