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olganol [36]
3 years ago
5

-2(9 + 3n) - 9 (1 - 10n)*

Mathematics
2 answers:
Pachacha [2.7K]3 years ago
5 0

Answer:

-27+84n

Step-by-step explanation:

-2(9 + 3n) - 9 (1 - 10n)

First, Distribute the -2 and -9

18-6n-9+90n

Next, combine like terms (18n and 90n) (-4 and -9)

leaving you with -27 + 84n

GuDViN [60]3 years ago
4 0

Answer:

-27+84n

Step-by-step explanation:

You might be interested in
Suppose that, in 1995, Germany produced 4.719 million computers. The total world production that year totaled 80 million compute
Reptile [31]

Answer:

To the nearest tenth

Percentage= 5.9%

Step-by-step explanation:

In 1995, Germany produced 4.719 million computers.

In that same year, the total computer production of the whole world was 80 million.

The percentage of the world production contributed by Germany

=Number produced by Germany/Number produced by the whole world * 100

The percentage of the world production contributed by Germany

=( 4.719/80)*100

The percentage of the world production contributed by Germany

=5.89875%

To the nearest tenth

= 5.9%

3 0
3 years ago
Which of the following points is a solution of y > |x| + 5?
Morgarella [4.7K]
You can do this one simply just by plugging in the values of x and y for each answer.
Note: (0,5) is just a way to right x=0 and y=5

Try answer A (0,5)
y\ \textgreater \ |x|+5
5\ \textgreater \ |0|+5
5\ \textgreater \ 0+5
5\ \textgreater \ 5
This is not true. 5 is not bigger than 5 so A is not the answer

Try answer B (1,7)
y\ \textgreater \ |x|+5
7\ \textgreater \ |1|+5
7\ \textgreater \ 1+5
7\ \textgreater \ 6
This is true so answer B works!

Might as well try answer C (7,1)
y\ \textgreater \ |x|+5
1\ \textgreater \ |7|+5
1\ \textgreater \ 7+5
1\ \textgreater \ 12
1 is obviously not greater than 12 so C does not work

The answer is B (1,7)
5 0
3 years ago
Mrs.Roberts drives 3/4 miles in 1/2 minute. How many miles can she drive in 1 minute?
mojhsa [17]

Answer:

1 1/2  OR 1.5 in decimal form

Step-by-step explanation:

If Mrs. Roberts drives 3/4 miles in half a minute, 1/2 x what = 1? 2. Multiply both items by 2. 3/4 x 2 = 6/4, also known as 1 1/2 or 1.5 Hope this helped!!

5 0
2 years ago
Continue the number pattern/sequence:
Yuki888 [10]


1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, … these are the
Fibonacci numbers.

so add in +1,

we get
1+1,1+1,2+1, 3+1 ,5+1, 8+1 ,13+1, 21+1, 34+1, 55+1 ...........
2,2,3,4,6,9,14,22,35,56.........


so 22,35,56 is the answe

dont delete my answer again
7 0
3 years ago
When two people each measured a windows width, their results were 79 cm and 786 mm. Are these results equally precise? Explain.
rosijanka [135]

The second result is more precise because it's in millilitre,so if the first were to be fully precise,it should have been 78.6 cm.

Hope this helps!

4 0
3 years ago
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