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3 years ago

Juanita says that 3.5[4d - (2) (1.5)] and 2[7d - (5)(1.05)] are equivalent. Is Juanita correct? Explain your reasoning.

Mathematics

1 answer:

valkas [14]3 years ago

8 0

Answer:

Yes

Step-by-step explanation:

3.5 [4d - 2*1.5] = 3.5*4d - 3.5*2*1.5

= 14d - 10.5

2*[7d - 5*1.05] = 2*7d - 2*5*1.05

= 14d - 10.5

When we are simplifying both the expression using distributive property, we get the same expression at the end.

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3 years ago

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Answer:

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Step-by-step explanation:

For this case we know that the photo is rectangular. Let's define:

x = the width, y= the length

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$P = 2x+2y$ (1)

And we know that the lenght is y = 20.3. If we solve for x from equation (1) we got:

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4 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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3 years ago