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elena-14-01-66 [18.8K]
3 years ago
9

Which point would map onto itself after a reflection across the line y = –x?

Mathematics
1 answer:
Leona [35]3 years ago
3 0
Is this what you meant? 

<span>Which point would map onto itself after a reflection across the line y = –x?

(–4, –4)
(–4, 0)
(0, –4)</span>
(4, –4)
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If the ratio of the purple flowers to black flowers is 4 to 8 and there are a total of 108 flowers how many of the flowers are p
FinnZ [79.3K]
Purple flowers: black flowers = 4:8 = 108

4 + 8 = 12

108 / 12 = 9. 

9 x 4 = 36. 

36 of the flowers are purple. 
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List the first 3 common multiples of 2 and 3 , 3 and 6
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The smallest 3 common multiples of  2  and  3  are  6,  12,  and  18 .

The smallest 3 common multiples of  3  and  6  are also  6,  12,  and  18 .


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Write down the decimal equivalent to;
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A) 25% = 25/100 = 0.25

b) 18% = 18/100 = 0.18

c) 40% = 40/100 = 0.40

d) 2% = 2/100 = 0.02

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How many times as much does each item cost in 2010 as in 1960 is the movie tix it tickets in 1960 costed $.75 in in 2010 cost 9.
Harrizon [31]
13 times i think
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Please help! provide thorough explanation and use elimination method!!
ICE Princess25 [194]

Multiply both sides of the second equation by 100 to get rid of the decimals:

0.05<em>n</em> + 0.10<em>d</em> = 1.50

==>  5<em>n</em> + 10<em>d</em> = 150

Multiply both sides of the first equation by -5:

<em>n</em> + <em>d</em> = 21

==>  -5<em>n</em> - 5<em>d</em> = -105

Add the two equations together:

(5<em>n</em> + 10<em>d</em>) + (-5<em>n</em> - 5<em>d</em>) = 150 + (-105)

Notice that the terms containing <em>n</em> get eliminated and we can solve for <em>d</em> :

(5<em>n</em> - 5<em>n</em>) + (10<em>d</em> - 5<em>d</em>) = 150 - 105

5<em>d</em> = 45

<em>d</em> = 45/5 = 9

Plug this into either original equation to solve for <em>n</em>. Doing this with the first equation is easiest:

<em>n</em> + 9 = 21

<em>n</em> = 21 - 9 = 12

So Donna used 12 nickels and 9 dimes.

8 0
3 years ago
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