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aleksandr82 [10.1K]
3 years ago
7

When multiplying signed numbers, how do you know whether the number is positive or negative?

Mathematics
1 answer:
Vanyuwa [196]3 years ago
8 0

Answer:

If the numbers have the same sign, then the answer will be positive.

If the numbers have different signs, then it will be negative.

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Your employer has 600 business cards printed for you, and you give away 280 of them. To the nearest hundredth, what percent of t
Ulleksa [173]
If you gave away 280 of 600 business cards and you would like to know what percent of the cards is left, you can calculate this using the following steps:

600 - 280 = 320 cards are left

320 / 600 = 8 / 15 = 0.5333 = 53.33%

The correct result is D. 53.33%.
7 0
3 years ago
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I am not sure about this problem?
uranmaximum [27]
The answer for your question is 4x^2-15x+6+ 2/3x+5
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3 years ago
N/2+5=3<br><br> n/2 (as in fractions )
Rudik [331]
N= -4

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3 years ago
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Solve the system of equations below. <br> 5x + 2y = 9<br> 2x - 3y = 15
riadik2000 [5.3K]

Answer:

(3,-3)

y= -3

x= 3

Step-by-step explanation:

5x+2y=9

2x-3y=15

solve the equation

x=9/5-2/5y

2x-3y=15

substitute the value of x into an equation

2(9/5-2/5y)-3y=15

distribute

18/5-4/5y-3y=15

subtract -4/5 to -3

18/5-19/5y=15

subtract 18/5 from both sides

-19/5=57/5

divide both sides by -19/5

y= -3

substitute the value of y into an equation

x=9/5-2/5(-3)

distribute

x=9/5+6/5

add 9/5 to 6/5

x=3

--------

(3,-3)

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3 0
3 years ago
What is the approximate result of converting 20 centimeters into inches? remember that 1inch = 2.54centimeters
marta [7]
20 cm * 1 inch / 2.54 cm = <span> <span> <span> 7.874015748 </span> </span> </span> inches
So the approximate result is 20 cm = 7.9 inches


6 0
3 years ago
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