2 years ago

Donte simplified the expression below.

Mathematics

1 answer:

Trava [24]2 years ago

8 0

He did not apply distributive property correctly for 4(1 + 3i)

Instead of 3i, it should be 12i.

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What is 82+(12 3+4)-10

Marina86 [1]

Is that 123 or 12 times 3

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2 years ago

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The sum of the digits of a two-digit nunber is 7. When you reverse the digits of the original number the new number is 27 more t

anzhelika [568]

Answer:

Step-by-step explanation:

2+5=7

25 reversed is 52

52-25=27

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2 years ago

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Barak spent $20 at the arcade. this represents 10%of the money earned by working at thepizza parlor last week.

Karolina [17]

20=10%
times 10
200=100%

he earned $200 at the parlor

4 0

3 years ago

A carpenter is assigned the job of expanding a rectangular deck where the width is one-fourth the length. the length of the deck

anzhelika [568]

Alright, lets get started.

Suppose the original deck size: width = x feet

the width is one-fourth the length given in question means length = 4 x feet

Means the originally area = $x * 4 x = 4 x^{2}$

Now the dimensions are changed.

New dimensions, width = (x + 6)

new length = (4x+10)

So, new area will be = $(x+6) * (4x+10) = 4x^{2} + 10 x + 24 x + 60 = 4x^{2} + 34 x + 60$

the area of the new rectangular deck is 128 ft2 larger than the area of the original deck, means

$4x^{2} + 128= 4x^{2} + 34 x + 60$

Subtracting $4x^{2}$ from both sides

$128 = 34 x + 60$

Subtracting 60 from both sides

$128 - 60 = 34 x + 60 - 60$

$68 = 34 x$

Dividing 34 in both sides

$\frac{68}{34} = \frac{34 x }{34}$

$x = 2$

Means width = 2 feet

Length would be = 4 time width = 4 * 2 = 8 feet

Means dimension of original deck would be = 2 feet and 8 feet :Answer

Hope it will help :)

8 0

3 years ago

Help..........................

kogti [31]

Answer:

Step-by-step explanation:

I'm not certain but I guess that's it

5 0

2 years ago