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3 years ago

12

Evaluate u + xy, for u = 2, x = 9, and y = 6.

2 answers:

yawa3891 [41]3 years ago

8 0

U+xy when u=2, x=9, and y=6

2+9(6)
2+54
56

puteri [66]3 years ago

6 0

Replace all variables with their equivalents.

The expression u + xy now becomes 2 + (9)(6).

Do the order of operations.

2 + (9)(6)
2 + 54
56

So, the answer is 56.

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Solve and check times six equals 12 / 9

Strike441 [17]

Okay so your gonna go across diagonally and multiply because it is a proportion problem so it turns out looking like this:
x(9) = 12(6)

8x =72

x = 9

Now just put it in:
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I hope that helps! :)

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3 years ago

Some more fractions, with common denominators

kenny6666 [7]

Answer:

$\frac{5}{6}-\frac{1}{9} = \frac{45}{54} -\frac{6}{54} = \frac{13}{18}$

Step-by-step explanation:

An easy way to find a common denominator is to multiply the denominators against each other, like this:

$(\frac{9}{9})\frac{5}{6}-\frac{1}{9} (\frac{6}{6})$

Now, simplify:

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Then, subtract:

$\frac{39}{54}$

Simplify:

$\frac{13}{18}$ (Divide numerator and denominator by 3)

Hope this helps!!

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Answer:A

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