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3 years ago

Evaluate the expression 3x + 2(y-4) when x = 10 and y = 7 (give answer as an integer

Mathematics

1 answer:

Greeley [361]3 years ago

3 0

Answer:

Step-by-step explanation:

Given

3x + 2(y - 4) ← substitute x = 10 and y = 7 into the expression

= 3(10) + 2(7 - 4)

= 30 + 2(3)

= 30 + 6

= 36

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4 years ago

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Multiply and simplify.

katrin2010 [14]

ANSWER

$8 {x}^{5} {y}^{7} {z}^{2}$

EXPLANATION

The given expression is

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We multiply out to obtain,

$= 2 \times 4 \times {x}^{2} \times x \times {x}^{2} \times {y}^{3} \times {y}^{4} \times {z}^{2}$

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4 years ago

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When you divide a fraction by another fraction, it is the same thing as multiplying that fraction by its reciprocal.

The reciprocal is the 'flipped' version of a fraction where the numerator becomes the denominator and the denominator becomes the numerator.

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Knowing this information 4/5÷9/10 is the same as 4/5×10/9

Now we can solve...

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4 years ago

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It would be 32-4x=12 !

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3 years ago

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Answer:

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Hope this helps!

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3 years ago