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IgorLugansk [536]
4 years ago
11

Can somebody please help me with this question

Mathematics
1 answer:
drek231 [11]4 years ago
7 0

Answer:

(3^2) - n

Step-by-step explanation:

For this problem we will take it step by step to build the expression:

raise 3 to the 2nd power

= 3^2

then find the difference of the result and n

= (3^2) - n

Hence, your final expression should be (3^2) - n.

Cheers.

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Sabrina calculates the cost of a book as $50. The actual price was $56. What is Sabrina's percent error.
kolezko [41]
The percentage is 6% cause, she said that the book was $50 but was original $56 , so ...first go by sabrinas cost ( 50 ) and the actual ( 56 ) so think how much was subtracted from the original price? s - 50 .. a- 56. .... 50 + 6 =56 so go by the amount of the price added to the percentage ...6 % is the answer..hoped this helped
7 0
4 years ago
The Little Lion's water cooler was filled with 255.5 ounces of water. The cooler's tap is emptying out 0.3 ounces of water per s
Illusion [34]

Answer:

After about 340 seconds the cooler should be 40% full


6 0
3 years ago
How many pennies could you have if: When you break the pennies into groups of 2, you have 1 penny left over, AND when you break
zhenek [66]

Answer:

91

Step-by-step explanation:

"When you break the pennies into groups of 2, you have 1 penny left over"

You have an odd number of pennies.

"when you break the pennies into groups of 3, you have 1 penny left over"

The number of pennies is one more than a multiple of 3.

"when you break the pennies into groups of 5, you have 1 penny left over"

A number that is divisible by 5 ends in 0 or 5. You have one more penny than that, so the number will end in 1 or 6. We already know the number is odd, so it cannot end in 6. The number of pennies must end in 1.

"when you break the pennies into groups of 7, you have NO pennies left over"

The number is a multiple of 7.

We need a multiple of 7 that ends in 1.

7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, 91, ...

You could have 91.

4 0
3 years ago
X=-9+6<br> helpppp!!!!!!!
shutvik [7]

Answer:

-3

Step-by-step explanation:

First, we have to do -9 + 6.

The order of addition does not matter, so we can switch around the numbers, making the statement:

6+ (-9)

If this is the equation, we can cancel out the addition sign:

6-9

Now we have to subtract 9 from six, and we will get -3.

x = -3

6 0
3 years ago
Read 2 more answers
Um litro de suco é dividido entre três amigos. O primeiro fica com 14 do todo, o segundo fica com 1/3 do total e o terceiro fica
kkurt [141]

Answer:

a) 1/24 do total

Step-by-step explanation:

We have that:

The total is 1.

The first friend gets 1/4 of the total.

The second friend gets 1/3 of the total

The third friend gets 3/8 of the total.

The remaining is x.

So

\frac{1}{4} + \frac{1}{3} + \frac{3}{8} + x = 1

The least common multiple between 4, 3 and 8 is 24. So

\frac{6 + 8 + 3*3 + 24x}{24} = 1

23 + 24x = 24

24x = 1

x = \frac{1}{24}

So the correct answer is:

a) 1/24 do total

3 0
4 years ago
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