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3 years ago

Pls answer asap it's urgent

Mathematics

1 answer:

Korolek [52]3 years ago

7 0

Interior angle add up to 360, so you add
(a+10) + (3a+10) + (5a-10) + (3a-10) = 12a

12a =360
a= 30
30+10=40
3(30)+10=100
5(30)-10=140
3(30)-10=80

You can double check they're correct by doing 40+100+140+80, which equals 360.

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You and your friend mix water and cirtic acid. You add 3 cups of citrtic acid for every 16 cups of water Your friend adds 2 cups

Vlad [161]

Answer:

A's mixture is more acidic.

Step-by-step explanation:

Given:

Two friends mix water and citric acid.

One (Let A) add 3 cups of citric acid for every 16 cups of water and another (Let B)adds 2 cups of citric acid for every 12 cups of water.

Now, we have to find that whose mixture is more acidic means:-

Solution:

A add 3 cups of citric acid for every 16 cups of water, the ratio = $\frac{3}{16}$

B adds 2 cups of citric acid for every 12 cups of water = $\frac{2}{12}$

Now, to find that who mix more citric acid in the mixture, firstly we will equalize the denominator of both fraction by taking LCM so that can be compare easily.

LCM of 16 and 12:- 48

16 - 16, 32, 48, 64, 80, 96....

12 - 12, 24, 36, 48, 60, 72.......

For friend A - $\frac{3\times3}{16\times3} =\frac{9}{48}$

For friend B - $\frac{2\times4}{12\times4} =\frac{8}{48}$

We found that in terms of 48 cups of water, friend A mixes 9 cups of acid while friend B mixes 8 cups of acid, means A is adding more acid than B and hence friend A's mixture is more acidic.

4 0

3 years ago

Allan and Dave bowled together and their combined total score for one game was 375 points. Allan’s score was 60 less than twice

Evgen [1.6K]

x+y= 375 y=2x-60
A is the answer

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3 years ago

The area of the floor in Harmony's square bedroom is 16m2. What is the length of her bedroom

prisoha [69]

Answer:

Ask Siri.

Step-by-step explanation:

Step 1: Pull out your Iphone or sAmSUnG.

Step 2: For your Iphone hold the home button or say "hey siry..."

Step 3:(If nEeDed) For your sAmSunG go to your nearest GameStop and try to sell it at the register. They'll probably give you like 20 bucks for it b/c that is what it's worth maybe even less but whatevs... And then go and spend your college fund on a brand new Iphone and you'll be part of the Kool Kids Klub (KKK).

6 0

3 years ago

Read 2 more answers

How do you find x? Please help

marusya05 [52]

Since you know that DA and DC are equal in length, you can say 2x-3=x+2, when you add 3 to both sides, it becomes 2x=x+5, subtract x from both sides, and you find that x=5

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3 years ago

Saru is making some lemonade. He finds using 42 ml of lemon juice and 210 ml of water

Usimov [2.4K]

Answer:

1/5

Step-by-step explanation:

There is five times as much water as lemon juice. So, for every part of lemon juice, there are five parts of water.

5 0

3 years ago