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3 years ago

11

Help plz find the value of m and n

2 answers:

lys-0071 [83]3 years ago

4 0

Omg people are so rude lol, just report them. ok so basically you would subtract the 114 from 180 to find the other degree. which would be 66. because the triangle on the right is a right triangle it would add up to 180. so, add 66 to 90= 156. then subtract 180 from 156 where you would then get m=24. ok i’m too lazy to explain the rest but basically n=20

Rufina [12.5K]3 years ago

3 0

Answer:

jdksbjsd

Step-by-step explanation:

ndjksbcsdbckdsbcsd sorry for points im sorry SORRY SORRY IM SO SORRY

IM RUDE AND UGLY SORRY

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Is my answer correct? If not what’s the right answer

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Answer:

Yup, 27 is correct!

Step-by-step explanation:

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3 years ago

Two customers went to a post office to buy postcards and large envelopes. Each postcard

astraxan [27]

The right answer is Option A.

Step-by-step explanation:

Let,

x be the postcards

y be the large envelops

According to given statement;

14x+5y=12 Eqn 1

10x+15y=24.80 Eqn 2

Multiplying Eqn 1 by 3;

$3(14x+5y=12)\\42x+15y=36\ \ \ Eqn \ 3$

Subtracting Eqn 2 from Eqn 3;

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Dividing both sides by 32

$\frac{32x}{32}=\frac{11.20}{32}\\x=0.35$

Putting x=0.35 in Eqn 1;

$14(0.35)+5y=12\\4.90+5y=12\\5y=12-4.90\\5y=7.10$

Dividing both sides by 5

$\frac{5y}{5}=\frac{7.10}{5}\\y=1.42$

Therefore, one large envelope costs $1.42

The right answer is Option A.

Keywords: linear equations, subtraction

Learn more about linear equations at:

#LearnwithBrainly

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3 years ago

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