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konstantin123 [22]
3 years ago
15

I need help on this question thank you

Mathematics
1 answer:
Annette [7]3 years ago
7 0

Answer:

\frac{3xy}{2}

Step-by-step explanation:

Given

\frac{5y^2}{3} × \frac{9x}{10y}

Cancel 5y² and 10y by 5y and cancel 3 and 9x by 3, leaving

= \frac{y}{1} × \frac{3x}{2}

= \frac{3xy}{2}

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0.500000000000000000000000 as a fraction
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3 years ago
Read 2 more answers
Quadratic Word Problems
Anit [1.1K]
4. Let the numbers be x - 2, x, and x + 2, where x is an odd number.
2(x² - 4) - 4x = (x + 2)² + 21
2x² - 8 - 4x = x² + 4x + 4 + 21
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When x = -3, x - 2 = -5, x + 2 = -1

Explanation: You are on the right track. However, rather than having three unknown variables, try to reduce your working out to one unknown variable. Since you know they are consecutive odd numbers, you can simply let x be the middle term and the other two be + and - 2, provided x is an odd number.

That will reduce your variable issues, and helps as the first and third provide a difference of two squares, and this works out very nicely.

Q5: is essentially the same process. Let your variables be something in the form of one unknown variable, and you should be okay from there. Let me know if you're stuck.
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3 years ago
Evaluate each expression
aliina [53]
I’m only in 7 grade I don’t know how to do it
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4 years ago
If Billy has a 116 foot long string of yarn, which is 44 feet longer than the string of yarn that Sally has, then how long is Sa
andrezito [222]

Answer:

Sally's string is 72 feet long.

Step-by-step explanation:

You just do 116-44= 72 feet!

Hope this helps!

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2 years ago
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