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Oksanka [162]
3 years ago
14

Will mark as Brainliest...

Mathematics
2 answers:
tatiyna3 years ago
8 0

Answer:

280 ft squared

Step-by-step explanation:

To find the area of the nonshaded portion, we can find the area of the entire floor and then subtract the shaded area.

The total area is that of a rectangle: 30 * 15 = 450 ft squared.

Now, the shaded region is made up of a rectangle and a triangle.

- The rectangle has length 8 and width 10, so its area is 10 * 8 = 80 ft squared.

- The triangle has base 12 and height 15, so using the area of a triangle formula: A=(bh)/2 (where b is the base and h is the height) = (12 * 15)/2 = 180/2 = 90 ft squared.

- The total shaded region is: 80 + 90 = 170 ft squared

Subtract 110 from 450: 450 - 170 = 280 ft squared.

Thus, the answer is 280 ft squared.

Hope this helps!

PSYCHO15rus [73]3 years ago
6 0

Answer:

280 ft^2

Step-by-step explanation:

First we find the area of the large rectangle

A =l*w where l =30 and w = 15

A =30*15 = 450 ft^2

Then we find the area of the small shaded rectangle

A = l*w  where l = 10 and w = 8

A = 8*10 = 80ft^2

We also need to find the area of the shaded rectangle

A = 1/2 bh   where b is 12 and h is 15

A = 1/2 *15*12

A =90 ft^2

We take the total area and subtract the shaded area

450 - 80 - 90

280 ft^2

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IRISSAK [1]

Answer:

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Step-by-step explanation:

\sf -11 + 3(b + 5) = 7

<u>First, let's regroup, terms,</u>

\sf 3(b+5)-11=7

<u>Add 11 to both sides,</u>

\sf 3(b+5)=7+11

<u>Simplify, 7+11 = 18,</u>

\sf 3(b+5)=18

<u>Now, divide both sides by 3,</u>

\sf b+5=\frac{18}{3}

<u>Simplify, 18/3 = 6,</u>

\sf b+5=6

Subtract 5 from both sides,

\sf b=6-5

\sf b=1

Hope it helps! :)

7 0
2 years ago
How are the values of the eights in 880 related
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<span>How the value of 8 in 880 related
=> 880 = 8 hundreds 8 tens
=> This given number is a whole numbers, thus the value of 8 in the hundreds place is ten times larger than the 8 In the tens place. How?
Try multiplying 8 tens by 10
=> 8 tens = 80
=> 80 x 10
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When 80 is multiplied by ten the answer is 800 and when 800 is divided by 10 the answer is 80.
That concludes that there’s 10 times difference between the two 8s in the given number.</span><span>


</span>



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