Please help me with this question I took a picture of it

Mathematics

1 answer:

Juli2301 [7.4K]2 years ago

8 0

Answer:

Step-by-step explanation:

36 = 90% × (number of questions)

36/0.90 = (number of questions) = 40 . . . . . divide by the coefficient of the variable

There were 40 questions on the test.

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Find y when x=15 if y=6 when x=30

Verdich [7]

Y = 12 because you multiply x by two to get x2, which is 30, and multiply y by two to get 12 - this is wrong, the answer is three, i did the math backwards

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2 years ago

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Math Problem:

kirza4 [7]

Answer:

Her answer is not reasonable. Her average is 83.

Step-by-step explanation:

Add all of her test grades together (96+82+78+76=332)

To find the average, you need to add all test grades she got and then divide the sum by the total number of numbers added (in this case, we added 4 tests together, so we need to divide by 4)

$\frac{332}{4} =83$