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2 years ago

Please help me.. I need help

Mathematics

1 answer:

stealth61 [152]2 years ago

8 0

1. I would multiply the dimensions of each room to find the area of each room. Then I can add up the areas to get the total area.

2. (24.5x16)+(15x12.75)+(10.5x10.5)

3. 392+191.25+110.25 = 693.5 ft²

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A drawing has a scale of 1:40 on the drawing a bedroom is a rectangle measuring 10 cm x 18 cm a kitchen has an actual area of 30

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Here, we want to know the compartment with the bigger area

Since the bedroom has a drawing measure of 1 to 40; compared to the actual measurement;

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2 years ago

Point E is on line segment DF. Given DE = 2x, EF = 2x – 6, and

Kamila [148]

Answer:

EF is 16.

Step-by-step explanation:

So we know that Point E is somewhere on Line DF. In other words, DE plus EF must equal DF. In an equation, this is:

$DF=DE+EF$

We are given that DE is 2x, EF is 2x-6, and DF is 3x+5. So, substitute:

$(3x+5)=(2x)+(2x-6)$

Now, solve for x.

On the right, combine like terms:

$3x+5=4x-6$

Subtract 4x from both sides:

$-x+5=-6$

Subtract 5 from both sides:

$-x=-11$

Divide both sides by -1:

$x=11$

Now that we know x is 11, substitute this back into the equation for EF to find EF.

$EF=2x-6$

Substitute 11 for x:

$EF=2(11)-6$

Multiply:

$EF=22-6$

Subtract:

$EF=16$

And we're done!

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3 years ago