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klio [65]
3 years ago
5

Twenty is fourteen more than 3 times a number. What is the number?

Mathematics
2 answers:
lesantik [10]3 years ago
8 0

Answer:

2

Step-by-step explanation:

Let's disect the problem. Three times a particular number plus fourteen equals 20. Let's make an equation, and replace the number with x.

<h2>3x + 14 = 20</h2><h3>The "3x" represents the 3 times the number,</h3><h3>the 14 represents the 14 added to make 20.</h3><h2>Let's solve the equation!</h2>

We'll first minus 14 from each side to balance the equation, but with the intention of isolating the variable, x.

<h2>3x = 6</h2>

We have almost successfully isolated the variable. To isolate the variable, we can divide by three on each side.

<h2>x = 2</h2><h2>The number is 2.</h2>
Amanda [17]3 years ago
4 0

Answer:

Mabey it's 6

Step-by-step explanation:

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What is 66×21? idk help me plz​
Olegator [25]

Answer:

1386

Step-by-step explanation:

If you have trouble with that, you can multiply 66 by 20, then 66*1, and add them (break apart the 21.)

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VMariaS [17]

Answer:

615

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andrew-mc [135]

Answer:

Multiply vector c by the scalar -1/2.

Step-by-step explanation:

Look at vector c.

It has an x component of 4 and a y component of 4.

You can write vector c as a sum of its components using unit vectors in the x direction (i) and in the y direction (j).

c = 4i + 4j

Now look at vector d, and write it also as a sum of its x and y components.

d = -2i - 2j

Now ask yourself, what operation do I do to 4 to end up with -2?

One answer is to multiply 4 by -1/2.

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That worked. By multiplying vector c by the scalar -1/2, you end up with vector d.

8 0
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mylen [45]

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