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weeeeeb [17]
4 years ago
14

Y=3x

Mathematics
2 answers:
Anna007 [38]4 years ago
5 0
It's simple jus plug in 3x into Y and u will have 2x+3x=15 
                                                                              5x=15
                                                                               the answer(x=3)
Mariulka [41]4 years ago
3 0
So you subtitute y=3x into
2x+y=15
so
2x+(3x)=15
add like terms
5x=15
divide both sides by 5
x=3

subtitute x=3 into first equation (y=3x)
y=3(3)
y=9
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8.88 x 10,000 really confused with this one on my homework, can you guys anseer and explain why? would really help!
Trava [24]
When multiplying by a number that is 1 with 0's on the end, you move the decimal to the right by how many zeros there are.

Because 10,000 has 5 0's, we move the decimal 5 places to the right.

8.88 => 88800
8 0
3 years ago
Negative two and one-third minus negative ten and one-sixth
zhenek [66]

Answer:

7 and 5/6.

Seven and five-sixths.

Step-by-step explanation:

-2 and 1/3  = -6/3 and 1/3 = -7/3

-10 and 1/6 = -60/6 and 1/6 = -61/6

(-7/3) - (-61/6)

= (-14/6) + (61/6)

= 47/6

= 7 and 5/6.

Hope this helps!

8 0
3 years ago
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7 0
3 years ago
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love history [14]

Answer:

9 > - 9

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5 0
2 years ago
Whats a decimal between 16.4 and 16.5
Finger [1]
Think of 16.4 as 16.40

Also think of 16.5 as<em> 16.50 </em>

Can you name numbers between 40 and 50 ?

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16.42  

Those are all numbers between 16.4 and 16.5

<em>:) </em>
5 0
3 years ago
Read 2 more answers
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