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3 years ago

What is the length of MN?

Mathematics

2 answers:

aksik [14]3 years ago

4 0

The answer to this is 58

Tresset [83]3 years ago

3 0

MN = 1/2 AC
= 1/2 (116)
= 58

answer
A. 58 cm

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A store has clearance items that have been marked down by 25%. They are having a sale, advertising an additional 40% off clearan

Hatshy [7]

Answer: He would pay 45% of the original price.

Step-by-step explanation:

Since we have given that

Let the original price of item be 'x'

Rate mark down by 25%

Amount of marked down would be

$\dfrac{25}{100}\times x\\\\=0.25x$

Amount after marked down becomes

$x-0.25x\\\\=0.75x$

Additional clearance items by 40% off

Amount of additional off is given by

$\dfrac{40}{100}\times 0.75x\\\\=0.4\times 0.75x\\\\=0.3x$

After additional off, the amount becomes,

$0.75x-0.3x\\\\=0.45x$

Hence, he would pay 45% of the original price.

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3 years ago

Solve 3c + 4 = -20 A. -5.3 B. 6 C. 8 D. -8

AlexFokin [52]

D IF YOU SUBTRACT 4 FROM THE OTHER SIDE YOU HAVE -20+-4= -24 THEN YOU DIVIDE -24 BY 3 AND YOU GET -8 AS YOUR ANSWER

4 0

3 years ago

Read 2 more answers

In ΔBCD, \overline{BD} BD is extended through point D to point E, m∠CDE = (6x-13)^{\circ}(6x−13) ∘ , m∠BCD = (2x+10)^{\circ}(2x+

AveGali [126]

Answer:

m∠CDE = 35°

Step-by-step explanation:

The exterior angle CDE is equal to the sum of the opposite interior angles, BCD and DBC. So, you have ...

6x -13 = (2x+10) +(x +1)

3x -24 = 0 . . . . . . . . . . . . subtract the right side, simplify

x -8 = 0 . . . . . . . . . . . . . . divide by 3

x = 8 . . . . . . . . . . . . . . . . . add 8

6x -13 = 6·8 -13 = 35 . . . . substitute for x in the expression for CDE

The measure of angle CDE is 35°.

7 0

3 years ago

Astronomers measure large distances in light-years. One light-year is the distance that light can travel in one year, or approxi

Semenov [28]

Answer:

Option B - $=8.4672\times 10^{13}$

Step-by-step explanation:

Given : Astronomers measure large distances in light-years. One light-year is the distance that light can travel in one year, or approximately 5,880,000,000,000 miles.Suppose a star is 14.4 light years from earth.

To find : In scientific notation, how many miles away a star is from earth?

Solution :

One light-year is the distance that light can travel in one year is = 5,880,000,000,000 miles.

In scientific notation, $5.88\times 10^{12}$ miles.

In 14.4 lights year the distance is $=14.4\times5.88\times 10^{12}$

In 14.4 lights year the distance is $=84.672\times 10^{12}$

or $=8.4672\times 10^{13}$

Therefore, Option B is correct.

5 0

3 years ago

on dividing $200 between A and B such that twice of A's share is less than 3 times than B's share by $20

Wittaler [7]

Answer:

Share of A is $116 and Share of B is $84.

Step-by-step explanation:

Let the share of A be $x$

Let the share of B be $y$

Given:

$200 is shared between A and B

So, $x+y =\$200\ \ \ \ equation \ 1$

Also given;

twice of A's share is less than 3 times than B's share by $20

$2x= 3y -20\\2x-3y = -20 \ \ \ \ equation \ 2$

Solution:

Now multiplying equation 1 by 3 we get,

$3x+3y=600 \ \ \ \ equation \ 3$

Now Adding equation 2 and equation 3 we get

$(2x-3y = -20)+ (3x+3y=600)\\5x=580\\\\x=\frac{580}{5}=\$116$

Now Substituting the value of x in equation 1 we get,

$x+y=200\\116+y=200\\y=200-116 = \$84$

Hence, Share of A is $116 and Share of B is $84.

8 0

3 years ago