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valentinak56 [21]
2 years ago
15

What ratios are equivalent to 5/9

Mathematics
1 answer:
NNADVOKAT [17]2 years ago
5 0

Answer:

10/18 and 20/36

Step-by-step explanation:

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Solving systems equations by elimination
pishuonlain [190]
I won't answer them all for you (don't want to cheat - need to learn something).
But for the first one given:

<span>-2x-9y=-25
-4x-9y=-23

you set up either x or y (which ever one you want to eliminate) so that one of them cancels.
So this one is easy - you just have to multiply an entire row by negative (doesn't matter which one) - so that the y's will be + and - 

Since they're both 9 and they're subracting NOW - you can eliminate the y value. Now add/subtract the x's. So it'd be -2 or 2 depending on how you eliminated y. Then add the number outside of the = sign. Now just solve for x. After that plug in whatever you got for x into both of the rows. Then find the y value.

Hopefully this wasn't confusing -- reply if it is and I will try to simplify. I can give you contact if you need help with the rest 

Good luck!</span>
3 0
3 years ago
Pls answer this One way to solve an equation or inequality that has both decimals and fractions is to change the
KatRina [158]

Answer:

Turn everything into fractions. You can also combine like terms.

Step-by-step explanation:

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3 years ago
The Hamid family installed a cylindrical pool in their backyard. The
Alex787 [66]

Answer:

4,046.4 ft^{2}

Step-by-step explanation:

4 0
3 years ago
The radius of a CD is 6cm which equation could be used to find the circumference of the CD in cm ?
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2πr

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to find the circumference you must multiply the radius by pi and 2

5 0
2 years ago
Read 2 more answers
Which answer is correct?
Airida [17]
I think it would be D
6 0
3 years ago
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