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PtichkaEL [24]
3 years ago
15

Please do help!! ;^;​

Mathematics
2 answers:
arsen [322]3 years ago
8 0
U = 5

10 + 7u = 45

9u = 45
motikmotik3 years ago
7 0

Answer:

10/7 is an improper fraction because the numerator is greater than the denominator.

Step-by-step explanation:

so try 10/7 as a whole number

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Asia is buying some CDs. The equation below shows the relationship between x, the number of CDs she buys, and y, the cost. 3. Ho
Svetradugi [14.3K]

She can buy ten CDs.

4 0
4 years ago
Why is the letter i the square root of negative one ( <img src="https://tex.z-dn.net/?f=%5Csqrt%7B-1%7D" id="TexFormula1" title=
Alja [10]

Answer:

It is an imaginary number.

Step-by-step explanation:

The square root of negative one is "i," the imaginary number. This concept is immensely useful in mathematics, as it allows for there to be square roots of negative numbers, which is otherwise not possible using only real numbers.

Any number that includes a negative square root is called an imaginary number. For example, the square root of -9 equals 3i, an imaginary number. When an imaginary number and a real number are combined, for example 2 + 3i, this is called a complex number. Complex numbers have many real world applications, including manipulating sound waves and calculating electrical currents.

3 0
3 years ago
Joan bought a 3-pound bag of shrimp for 19.55. What is the unit price per ounce of shrimp?
sveta [45]

Answer:

$0.407291667 per ounce

Step-by-step explanation: there are 16 ounces in a pound.   16 times 3 is 48.

in order to find the price per ounce, we need to divide the total price by the number of ounces

19.55/48 is 0.407291667

7 0
3 years ago
Read 2 more answers
What is 90 plus negative 35
Dima020 [189]
The addition of a negative is basically the same as subtraction.

Since your adding -35 to 90, your just taking away 35 from 90.

You would set up the problem like this:

90 + – 35

Or you could write it out like this:

90 – 35

Either way, 90 + – 35 = 55
7 0
3 years ago
24. A quantity represented by 3x - 4 is
Sidana [21]

Answer:

The answer is option A. 2x - 3

The expression 3x - 4 is subtracted from

5x - 7 is written as

5x - 7 - (3x - 4)

= 5x - 7 - 3x + 4

= 2x - 7 + 4

= 2x - 3

Hope this helps

6 0
3 years ago
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