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oksian1 [2.3K]
3 years ago
5

Anna scored 27 questions right on her test. She scored a 90%. How many questions were on the test?​

Mathematics
2 answers:
-BARSIC- [3]3 years ago
7 0

Answer:

30

Step-by-step explanation:

divide 27 by 9

you get 3

add 3 to 27 because 3 = 10%

30 questions

hope this helped! :)

valkas [14]3 years ago
6 0

Answer: 30

Step-by-step explanation: 30 times .9 is 27, meaning that 90%of her grade would be 27.

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STEP - BY - STEP EXPLANATION

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Quotient = x²+ x - 3

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ANSWER

Quotient = x²+ x - 3

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Holly has $462 in her bank account and takes out $15 each week but does not put any back in. Write an equation/expression to rep
Degger [83]

Answer:

Therefore required expression is

y =462 - t×15

where y represents the amount of money in her bank account in dollar after t week.

Step-by-step explanation:

Given that,

Holly has $462 in her bank account and takes out $15 each week but does not put any back in.

She takes out $15 on first week.

The remaining amount of her bank account is =$(462-15)

                                                                            =$(462 - 1×15)

If she withdraws $15 on second week.

The remaining amount of her bank account is =$(462-15-15)

                                                                            =$(462 - 2×15)

Similarly after third the amount in her account is =$(462 - 3×15)

From the above it is cleared that

The amount in her account after t week is

=$(462 - t×15)

Therefore required expression is

y =462 - t×15

where y represents the amount of money in her bank account in dollar after t week.

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