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Sauron [17]
3 years ago
10

Determine whether the ordered air is s solution of the given system of equations, remember to use alphabetical order of variable

s. (5,2); a+b=7 and 2a-8=b
Mathematics
1 answer:
Igoryamba3 years ago
3 0
Given your ordered pair you would assume a = 5, b = 2
Set up both equations 
5 + 2 = 7
7 = 7 (the numbers are equal so this correct)
2(5) - 8 = 2
10 - 8 = 2
2 = 2 (the numbers are equal so this is also correct)

Because both equations work with the ordered pair they <em>are</em><span> the solution of the given system.</span>
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What is 18.4 times 3.40 and the wprk showed
dusya [7]

Decimal division is super easy, let me show you how.

First, let's remove the decimal from both numbers. We have <em>184 </em>and <em>340</em>. Now let's multiply those two numbers.

184*340 = 62560.

Now, we need to figure out how many decimal places are in the original decimals. 18.<u>4</u> has one decimal place, and 3.<u>4</u> has one decimal place. (We don't count zeros at the end of a decimal as a decimal place.)

Now that we've figured out that there was a total of two decimal places, there can only be two decimal places in the answer. Let's take the 62560 that we got, and put a decimal in it. Remember, only two decimal places.

If there's only two decimal places in 62560, it would look like this: 62.<u>56</u> (<em>Remember, zeros at the end of a decimal does not count as a decimal place!)</em>


There's your final answer. 62.56.


Hope this explanation helped you out. :)

7 0
3 years ago
The lights go out, your bedroom is pitch dark, yet you still need to find a pair of socks, in your drawer there is 25 white sock
Lerok [7]

Answer: At most 3

Step-by-step explanation:

If there are 25 white socks and 25 red socks, a matching pair would be picked in at most 3 times.

The first sock you pick would be either White or Red

The second sock you pick would be either white or red again which means that you now either have 2 whites, 2 reds or 1 white and 1 red.

The third sock you pick will either be white or red once more. At this point you will either have 3 whites, 3 reds, 2 whites and 1 red or 2 reds and 1 white.

You will therefore have at least a matching pair after 3 tries.

8 0
3 years ago
The sum of 6 consecutive even numbers is 126.what is the fourth number in this sequence
loris [4]
6x + 2 + 4 + 6 + 8 + 10 = 126
6x + 30 = 126
6x = 96
x = 16
Numbers are {16,18,20,*22*,24,26)
Correct answer is 22.
8 0
3 years ago
Read 2 more answers
Please help me out with this
AVprozaik [17]

Answer:

6 in^2.

Step-by-step explanation:

The area of 2 similar figures are in the ratio of the squares of corresponding sides. So we have the equation:

3^2 / 6^2 = x / 24

9/36 = x /24

1 / 4 = x / 24

x =  24/4 = 6 in^2 (answer).

8 0
3 years ago
Convert 7.87% to a decimal
juin [17]
Your answer is 0.0787
8 0
3 years ago
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