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Valentin [98]
1 year ago
10

Evaluate.

Mathematics
1 answer:
aleksandrvk [35]1 year ago
3 0

Answer: -2 4/15

Step-by-step explanation: To properly subtract, we need to find a common denominator. We can list the multiples of 3 and 5 to find the common denominator:

3: 3, 6, 9, 12, 15

5: 5, 10, 15


The first common multiple we see is 15.

Calculation:

3 · 3 = 9

9 + 1 = 10

3 1/3 = 10/3

5 x 5 = 25

25 + 3 = 28

-5 3/5 = -28/5

Now to convert into fifteen as the denominator:

-28/5 = -28 x 3/5 x 3 = -84/15

10/3 = 10 x 5/3 x 5 = 50/15

Now to subtract accordingly:

50/15 - 84/15 = -34/15

Final answer: -34/15 (can be reduced to -2 4/15).

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kaheart [24]

Answer:

B ) Negative

Step-by-step explanation:

Given the expression 3xy

when x>0 and y<0

The value of the expression 3xy will be negative.

This is because the product of a positive and negative number will always be negative.

For illustration,

Let x=5>0 and y=-5<0

3xy=3(5)(-5)=-75

NOTE:

-X-=+\\-X+=-\\+X+=+

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3 years ago
Walter wants computer software that cost $129. He has $57 saved. If he saves a maximum of $15 a week, the following inequality c
Lina20 [59]

In this question, it is given that

Walter wants computer software that cost $129. He has $57 saved.

he saves a maximum of $15 a week, the following inequality can be used to find how many weeks it will take Walter to save enough money to buy the software.

15x+57 \geq  129

And we have to solve this inequality for x.

First we subtract 57 to both sides. And on doing so , we will get

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Dividing both sides by 15.

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3 years ago
Which answers are equivalent to Q + p + Q + p + Q​
NikAS [45]

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<h2>3Q + 2p</h2>

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4 0
3 years ago
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dybincka [34]

Answer:

The answer is .24, or 6/24

Step-by-step explanation:

Its easiest to convert the 2 answers into decimals and then solve.

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ANSWER ASAP1! GET BRAINLEST
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Answer:

x = 2\dfrac{3}{7}

Explanation:

\hookrightarrow 35.1 = 12.9 + 10.2x

\hookrightarrow 10.2x = 35.1 - 12.9

\hookrightarrow \dboxed{10.2x = 22.2}

\hookrightarrow x =\dfrac{22.2}{10.2}  * 5

\hookrightarrow x = \dfrac{111}{51}

\hookrightarrow x = \dfrac{37}{17}

\hookrightarrow x = 2\dfrac{3}{7}

3 0
2 years ago
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