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Vladimir79 [104]
3 years ago
8

Help please I need it as soon as possible ​

Mathematics
1 answer:
MAVERICK [17]3 years ago
3 0

Answer:

y=1/2+3

Step-by-step explanation:

For the first one, 0 and 3. 0/2 is not possible so we just add 3.

Second, 1/2 is 0.5 of 1/2. Plus 3 is 3 1/2.

Third, 2/2 = 1 + 3 = 4.

And last, 3/2 = 1.5 or 1 1/2. 1 1/2 + 3 is 4 1/2

--

Hope this helps!

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Total cost of item = $138

Explanation:

The tax percentage = 15%

cost of item = $120

sales tax = cost of item × The tax percentage

sales tax = 120 × 15%

=120 × 0.15

sales tax = $18

Total cost of item = initial cost of item + sales tax

Total cost of item = 120 + 18

Total cost of item = $138

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11 months ago
Which phrase should be inserted in the line to make a true statement? 2/3 is _____ 8/12 A. Is greater than B. Less than C. Canno
kodGreya [7K]

Answer:

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Step-by-step explanation:

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3 years ago
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Art [367]

Answer:

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Step-by-step explanation:

On dividing the numbers 9 and 12 by 3 table we get the ratio <em>3</em><em>:</em><em>4</em>

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3 years ago
Suppose y varies directly with x, and y= 10 when x=-2. What direct variation equation relates x and y? What is the value of y wh
Musya8 [376]

The statement " <span>y </span>varies directly as <span>x </span>," means that when <span>x </span>increases,<span>y </span>increases by the same factor. In other words, <span>y </span>and <span>x </span>always have the same ratio:

<span><span> = k</span>   </span>

<span>where </span><span>k </span>is the constant of variation.
<span>We can also express the relationship between </span><span>x </span><span>and </span><span>y </span>as:

<span><span>y = kx</span>   </span>

<span>where </span><span>k </span>is the constant of variation.

Since <span>k </span>is constant (the same for every point), we can find <span>k </span>when given any point by dividing the y-coordinate by the x-coordinate. For example, if <span>y </span>varies directly as <span>x </span>, and <span>y = 6</span> when <span>x = 2</span> , the constant of variation is <span>k =  = 3</span> . Thus, the equation describing this direct variation is <span>y = 3x </span>.

Example 1: If <span>y </span>varies directly as <span>x </span>, and <span>x = 12</span> when <span>y = 9</span> , what is the equation that describes this direct variation?

<span>k =  =  </span>
<span>y =  x</span>

Example 2: If <span>y </span>varies directly as <span>x </span>, and the constant of variation is <span>k =  </span>, what is <span>y </span>when <span>x = 9</span> ?

<span>y =  x = (9) = 15</span>

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Example 3: If <span>y </span>varies directly as <span>x </span>, and <span>y = 15</span> when <span>x = 10</span> , then what is <span>y </span>when <span>x = 6</span> ?

<span> =  </span>
<span> =  </span>
<span>6() = y </span>
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3 years ago
Solve the equation: 3(x - 5) = x + 21 <br> ( please help me )
Alex787 [66]

Answer:x=18

Step-by-step explanation:

3(x-5)=x+21

Distribute the 3

3x-15=x+21

Add 15 to each side

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Subtract x from each side

2x=36

Divide each side by 2

x=18

5 0
2 years ago
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