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pashok25 [27]
2 years ago
5

PLEASE HELP I WILL GIVE BAINY LIST TO WHOEVER ANSWERS ALL THE QUESTIONS !!!!!

Mathematics
2 answers:
sergejj [24]2 years ago
5 0

Answer:

1. 97\frac{3}{4}

2. 3x6\frac{3}{4}=20\frac{1}{4}

3. 77\frac{1}{2}

4. Yes (explanation given below)

Step-by-step explanation:

1. Find the area of the wall including the door...

Just multiply the numbers for the width and length.

11\frac{1}{2} x 8\frac{1}{2}=97\frac{3}{4}

And now, as you can see.

97\frac{3}{4} is our answer for 1.

2. Find the area of the door. (improper fraction)

Again, we just have to multiply, then simplify, and remember to keep it in improper fraction format.

3x6\frac{3}{4}=20\frac{1}{4}

so now, we can see that that is the area of the door, but according to the question, we have to leave the answer in the improper fraction format. To turn a mixed number into a improper fraction, we have to multiply the denominator of the fraction with the whole then, add the numerator, the answer that we get is going to be the numerator of the improper fraction and the denominator remains the same.

20 1/4 = 81/4 (improper fraction)

So, 81/4 is our answer for 2.

3. Without door space, give how much wall area there is. (mixed number)

So, as we already know that the door covers up 20\frac{1}{4}, so all what we have to do is, take the area of the Whole wall and door and subtract it by the door area.

WHOLE wall = 97\frac{3}{4}

Door only = 20 \frac{1}{4}

97\frac{3}{4}-20\frac{1}{4} = 77\frac{1}{2}

So, hence, the answer for 3. is 77\frac{1}{2}

4. Does Amelia have enough paint? Explain...

Yes, amelia has enough paint for covering the whole intire wall because she has enough paint for a 100 square feet, and the actual surfact area of her wall is JUST 97 3/4 square feet. So, she definitely has enough paint to cover that wall and door.

Thank You! Please mark me brainliest so that I get encouraged to make more great answers like this one!

belka [17]2 years ago
5 0

Answer:

1. Find the area of the wall, including the door.

Area of wall including the door : length*breadth of wall

=8 ½*11 ½

making mixed fraction to simple fraction.

8 ½=(8*2+1)/2=17/2

11 ½=(11*2+1)/2=23/2

now

8 ½*11 ½=9

17/2*23/2=\bold{\frac{391}{4}}<u> square feet</u>

2. Find the area of the door.

Area of door=length*breadth=6 ¾*3

making mixed fraction to simple fraction

6 ¾=(6*4+3)/4=27/4

now

6 ¾*3=27/4*3=\bold{\frac{81}{4}}<u>square feet</u>

3. Subtract the area of the door from the area of the wall. This is the amount of wall space Amelia needs to paint. Write your answer as a mixed number.

<u>the amount of wall space Amelia needs to </u>paint= area of wall- area of door

=391/4-81/4

=(391-81)/4

=310/4

=155/2 making it to the mixed fraction.

Quotient=77

remainder=1

denominator=2

mixed fraction=77 ½

<u>A</u><u>r</u><u>e</u><u>a</u><u> </u><u>o</u><u>f</u><u> </u><u>p</u><u>a</u><u>i</u><u>n</u><u>t</u><u>i</u><u>n</u><u>g</u><u> </u><u>=</u><u>7</u><u>7</u><u> </u><u>½</u><u> </u><u>square feet</u>

4. Does Amelia have enough paint? Explain

Since Amelia painting area is less than 100 square feet I.e.100-77.5=22.5square feet more.So

<u>y</u><u>e</u><u>s</u><u>,</u><u>Amelia have enough </u><u>paint</u><u>s.</u>

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Second sample proportion

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