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2 years ago

Why are plus and minus signs ignored in percent error calculations?

1 answer:

8 0

Percent error is the percentage ratio of the observed value and the true value difference over the true value so you don't need plus or minus signs. Thanks!

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What is a tenth of a decimal ?

trapecia [35]

One decimal place to the left decimal point is the place.

8 0

3 years ago

3x - 3y = -3 2x - y = -5

Korolek [52]

For this case we must solve the following system of equations:

$3x-3y = -3\\2x-y = -5$

To solve we follow the steps below:

We multiply the second equation by -3:

$-6x + 3y = 15$

Thus, we have the equivalent system:

$3x-3y = -3\\-6x + 3y = 15$

We add the equations:

$3x-6x-3y + 3y = -3 + 15\\-3x = -3 + 15\\-3x = 12\\x = \frac {12} {- 3}\\x = -4$

We look for the value of the variable "y":

$2 (-4) -y = -5\\-8-y = -5\\-y = -5 + 8\\-y = 3\\y = -3$

Thus, the solution of the system is given by:

$(x, y): (- 4, -3)$

Answer:

$(x, y): (- 4, -3)$

4 0

2 years ago

Simplify 5(x - 6). 5x - 6 0 5x - 30

Lesechka [4]

Answer:

It depends on what property you use

Step-by-step explanation:

If you use the distributive property then you would get 5x-30

If you factor you would get 5(x-6)

4 0

2 years ago

Due soon! Answer this geometry question. Thanks.

jarptica [38.1K]

Answer:

i think A if not sorry

Step-by-step explanation:

7 0

2 years ago

A city received 2 inches of rain each day for 3 days. The meteorologist said that if the rain had been snow, each inch of rain w

hodyreva [135]

60 inches since there is 2 inches of snow for 3 days, so that equals 6 inches for 3 days and then you just have to multiply 6 by 10 and you get 60 inches of snow, or 5 feet

5 0

2 years ago

Read 2 more answers