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AleksAgata [21]
3 years ago
11

Round 2.348 to the nearest tenths place

Mathematics
1 answer:
babunello [35]3 years ago
6 0

Answer: 2.3

Step-by-step explanation: Tenths is the first number after the decimal, and the number after (hundredths place) has to be between 5 and 9 to round up to 2.4, so instead you round down to 2.3.

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Accumulation of plastics in the environment creates problems for wildlife and their habitats as well as for human. Plastics are
Crazy boy [7]

Using an arithmetic sequence, it is found that:

i) They collected 300 bottles on June 25th.

ii) The day was July 18th.

<h3>What is an arithmetic sequence?</h3>

In an arithmetic sequence, the difference between consecutive terms is always the same, called common difference d.

The nth term of an arithmetic sequence is given by:

a_n = a_1 + (n - 1)d

In which a_1 is the first term.

In this problem, the sequence is: {417 ,404 ,391, .........}, hence the first term is a_1 = 417, the common difference is d = -13, and the equation is:

a_n = 417 - 13(n - 1)

Item i)

They started on June 15th, hence June 25th is the 10th day, thus:

a_{10} = 417 - 13(9) = 300

They collected 300 bottles on June 25th.

Item ii)

This is n days after June 15th, for which a_n = 1, hence:

a_n = 417 - 13(n - 1)

1 = 430 - 13n

13n = 429

n = 33

33 days after June 15th is July 18th.

More can be learned about arithmetic sequences at brainly.com/question/6561461

3 0
2 years ago
The cost of a television was $500. The cost was increased by 10% and then decreased by 10%. What was the final price of the tele
postnew [5]

Answer:495

Step-by-step explanation:

500 x .1 = 50

550 x .9 = 495

8 0
3 years ago
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Combine like-terms of 6x-2x-2=-3x+4(x+7)
Leya [2.2K]
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3 0
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What are the methods of substitution?
anyanavicka [17]

Answer:

-<u>One Equation</u>: is set equal to a variable

Example:

y = 2x + 1

x + 3y = -12

You already have y, plug it back into x + 3y = -12

x + 3(2x + 1) = -12

x + 6x + 3 = -12

7x + 3 = -12

(Subtract 3 from each side)

7x = -15

(Divide by 7)

x = - 2.14

-<u>No Equation</u>: is set equal to a variable

Example:

2x + y = 10

4× + 2y = -3

Subtract 2x from each side of 2x + y = 10, you should get y= -2x + 10. Now that you have found y, substitute y into 4x+ 2y = -3.

4x + 2(-2x + 10) = -3

4x + -4x + 20 = -3

(Subtract 20 from each side)

4x + -4x = -23

(Add 4x and -4x)

0 = -23

No Solution

<u>-Both</u><u> </u><u>Equations</u>: are set equal to a variable

Example:

y = x + 5

y = -x + 3

(you already have y so plug it into the other equation to solve for x)

-x + 3 = x + 5

(Add -x on both sides)

3 = 2x + 5

(subtract 5 from both sides)

-2 = 2x

(Divide by 2 on each side)

x = -1

I hope this helped!

8 0
3 years ago
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