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3 years ago

How do I find the measure of angle a and b a different way?

Mathematics

1 answer:

Nuetrik [128]3 years ago

4 0

So you could find the answer for A and B two different ways by adding and subtracting the answers for example 180 subtracted by 75 gives you an answer and then 75 + and answer use 180

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Can you do 2 problems? and then someone else do the other 2 ty!

Lynna [10]

Answer:

5.) MIGHT I SAID MIGHT be 20+16+12=48km squared for perimeter and 192 (im not sure really) for area

i can only do one I HOPE this helps probably not tho

Step-by-step explanation:

6 0

2 years ago

A length of 9 and<br> a perimeter of 22

Bad White [126]

Answer:

Width is 2 if that's what you were looking for.

Step-by-step explanation:

I'm guessing it's a rectangle and you want the width?

22-9-9=2w

2w=4

The width is 2

4 0

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;

$(42x+15y)-(10x+15y)=36-24.80\\42x+15y-10x-15y=11.20\\32x=11.20\\$

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

4 0

3 years ago

Please help!!! All these need to be simplified

Maslowich

10x
8x-2
6x+4
They all simplify

4 0

2 years ago

Read 2 more answers

The random numbers below represent 10 trials of a simulation.

satela [25.4K]

Answer:1/10

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers