2 years ago

The line in the same plane which do not interest Each Other are called ________ lines

Mathematics

1 answer:

aalyn [17]2 years ago

4 0

parallel lines or skew lines

Parallel lines are in Same plane or Coplanar but donot intersect each other.
Skew lines lie in same plane but don't intersect each other.

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The average value of two positive numbers is 30% less than one of the two numbers. By which percentage is average value bigger t

Viefleur [7K]

Answer:

75% bigger

Step-by-step explanation:

Let the first number be x and the second be y.

So:

$Average = \frac{x + y}{2}$

And:

$Average = (1 - 30\%) * x$ -----30% less than x

Substitute $Average = (1 - 30\%) * x$ in $Average = \frac{x + y}{2}$

$\frac{x + y}{2} = (1 - 30\%) * x$

$\frac{x + y}{2} = (1 - 0.30) * x$

$\frac{x + y}{2} = 0.70 * x$

$\frac{x + y}{2} = 0.70x$

Cross multiply

$x + y = 0.70x * 2$

$x + y = 1.40x$

Collect like terms

$1.40x - x = y$

$0.40x = y$

Make x the subject

$x = \frac{y}{0.40}$

$x = 2.50y$

So, the average is:

$Average = (1 - 30\%) * x$

$Average = (1 - 30\%) * 2.50y$

$Average =0.70 * 2.50y$

$Average =1.75y$

Rewrite as:

$Average =(1 + 0.75)y$

Express as percentage

$Average =(1 + 75\%)y$

This means that the average is 75% bigger than the second number

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2 years ago

30 POINTS! Tanya has several different ways she likes to walk home. One route takes 20 minutes, two of the routes take 30 minute

andre [41]

Of the 5 routes Tanya can choose from, 2 routes will take 30 minutes. This means that the probability is:

2/5 = 0.4

The answer is 40%.

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3 years ago

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What is the product of 2x(5+3)-4^2

Zigmanuir [339]

Answer:

2×8-4^2

=16-16

0 is the porduct

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3 years ago

Obtain an estimate for the following computation by rounding the numbers so that the resulting arithmetic can easily be performe

uranmaximum [27]

Answer:

Step-by-step explanation:

2915 can stay as it is; 15.458 should be rounded down to 15. Then we have

2915-15, or 2900 (which is a very reasonable estimate).

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3 years ago

Which best describes how to add 9.73 and 21.6

Marta_Voda [28]

Answer:

Step-by-step explanation:

9.73

21.60

31.33

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2 years ago

The line in the same plane which do not interest Each Other are called ________ lines​

The line in the same plane which do not interest Each Other are called ________ lines