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umka21 [38]
3 years ago
6

25+ Points for BEST TWO answers!

Mathematics
1 answer:
lana66690 [7]3 years ago
5 0
 <span>You are not supposed to be wallpapering the ceiling or the floor. Because of that the formula to answering this question is:  2(h*w) + 2(l*w) [to account for the 4 walls being wallpapered] 
2(9 x 18) + 2(9 x 20) 
2(162) + 2(180) 
324 + 360 
684 is the answer 
</span>
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What is the area of the original rectangle?<br> A.8cm sq<br> B.20cm sq<br> C.25cm sq<br> D.40cm sq
Bumek [7]

Answer:

A. 8 cm sq

Step-by-step explanation:

Find the scale factor

new width/original width

8/1.6=5

calculate length of original rectangle

new length/scale factor

25/5=5cm

Find area of original rectangle

A=l×w

A=1.6×5=8cm²

4 0
3 years ago
Read 2 more answers
TAKE ANY UNMARKED BOWL OR GLASS AND FILL IT EXACTLY 3/5 FULL WITH WATER.
Wittaler [7]

Answer:

Take a glass, and fill it completely with water.

Now, pour that water in a marked bowl and measure how much water is in the bowl, that amount of water will be 100% of the total water that the glass can have.

Now you need to pour 3/5 of the water back in the glass, it is easier for water until the water in the bowl is exactly 2/5 of the initial amount.

You can do this as follows.

2/5 = 0.4 or 40% in percentage form.

Then if the amount of water in the marked bowl is A, the amount of water that must remain in the marked bowl is A*0.4

Then drop the water in the glass until the water in the marked bowl is the quantity that you found previously.

In this way, you can be sure that the glass is 3/5 full of water.

8 0
3 years ago
Someone can you please help me on number 74
lisabon 2012 [21]

Answer:

  9t^3 +t^2

Step-by-step explanation:

The perimeter of the figure is the sum of the lengths of the sides. The side lengths are represented by the polynomials shown, so the perimeter (P) is their sum:

  P = (4t^3 -5) + (4t^3 -5) + (t^2 +9) + (t^3 -t^2 -11) + (t^2 +12)

Rearranging to group like terms:

  P = (4t^3 +4t^3 +t^3) + (t^2 -t^2 +t^2) + (-5 -5 +9 -11 +12)

  P = 9t^3 +t^2

The perimeter of the figure is represented by the polynomial 9t^3 +t^2.

5 0
3 years ago
Read 2 more answers
This should be easy
Ivanshal [37]

Answer:

69

Step-by-step explanation:

it's the holy number jesus christ can confirm

8 0
3 years ago
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I need an answer for question 16. I currently have 24 + 4 =
EastWind [94]

Answer:

Yes you are on the right track!

Step-by-step explanation:

8 0
3 years ago
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