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3 years ago

What is the answer to: -1/5 - (-2/9)= ?

Mathematics

2 answers:

Artist 52 [7]3 years ago

8 0

Answer:

1/45 or 0.02222222

Ber [7]3 years ago

3 0

Answer:

1/45

Step-by-step explanation:

Since the double negatives cancel out, we are left with - 1/5 + 2/9 . Add these and you would get 1/45

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Set up a system of equations and then use your calculator to solve: In triangle ABC, the sum of angles and c is equal to three t

aalyn [17]

Answer:

Step-by-step explanation:

angle A = 40

angle B = 60

angle C = we don't know.

A + B + C = 180

C = 180 - A - B

C = 180 - 40 - 60

C = 80

40 + 60 + 80 = 180

180 = 180...It checks!

4 0

2 years ago

Watch day about 75,000 people visit Paris, France. Use commutative property to write two equivalent expressions that could be us

Studentka2010 [4]

Answer:

$5\times 75,000$ and $75,000\times 5$

Step-by-step explanation:

We have been given that about 75,000 people visit Paris, France. We are asked to write two equivalent expressions that could be used to find the number of people that visits over a 5- day period .

To find the number of people over a 5-day period, we will multiply 75,000 people by 5 as:

$\text{Number of people that visits over a 5-day period}=75,000\times 5$

Commutative property of multiplication states that we can multiply numbers in any order.

Upon switching the order while multiplying, we will get:

$\text{Number of people that visits over a 5-day period}=5\times 75,000$

Therefore, our required equivalent expressions would be $5\times 75,000$ and $75,000\times 5$ .

5 0

2 years ago

Write 1 over 9 as a decimal and round it to 2 decimal places

FromTheMoon [43]

Answer:

0.111

Step-by-step explanation:

1/9 as a decimal is 0.11111111 but rounded to 2 decimal places is 0.111.

Hope this helps :)

Have a good day / night

3 0

2 years ago

Read 2 more answers

A certain forest covers an area of 2100 km². Suppose that each year this area decreases by 3.5%. What will the area be after 5 y

Blizzard [7]

Answer:

$\large\boxed{\sf \ \ \ 1757 \ km^2 \ \ \ }$

Step-by-step explanation:

Hello,

I would recommend that you checked the answers I have already provided as this is the same method for all these questions, and maybe try to solve this one before you check the solution.

At the beginning the area is 2100

After one year the area will be

2100*(1-3.5%)=2100*0.965

After n years the area will be

$2100\cdot0.965^n$