So this meeting room is 3 by 19 by 12

surface area/wall area=2(height times width)+2(height times depth)+2(width times depth)

lets say 3=height
depth=19
width=12

2(3 times 12)+2(3 times 19)+2(12 times19)=2(36)+2(57)+2(228)=72+114+456=642

2 coats of paint so surface area times 2
642 times 2=1284
assuming 30m means 30 square meters we divide 1284 by 30 and get
1284/30=42 and 4/5 or 42.8
then find how many cans by dividing by 4
42.8/4=10 and 1.4/2=10.7, but you cant buy 0.7 of a can so round up and get
11 cans of paint

he needs 11 cans of paint

8 0

4 years ago

A map has a scale of 1 inch to 15 miles . If 2 cities are 3.4 inches apart on the map , what is the actual distance between the

Hatshy [7]

Look at it this way. (x.y x = 10 / y = 1) So, 3 inches straight is 15 * 3 = 45, and the 0.4 would be 45 + 4 = 49. So, 49 should be your answer.

☺♥

4 0

4 years ago

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I need help pls I WILL GIVE BRAINLIEST Pls help

uranmaximum [27]

Answer:

1. The square root of 100

2.c=27.11

d=13.96

e=12.6

Step by step explanation: 

1. 2×50=100 the geometric mean is the square root of 100

2. The diagram is made up of three right angled triangles the big outer one and two triangles inside the big one thus we can use the pythagorean theorem to come up with expressions which will help us in solving the unknown parts as below.

c²=30²-d²

c²=e²+24²

d²=e²+6²

both the following add up to c² meaning they are equal:

c²=30²-d²

c²=e²+24²

thus

30²-d²=e²+24²

I want to remain with d² only thus;

30²-24²-e²=d²

900-576=324 (squareroot of 324=18) so

d²=18²-e² and d²=e²+6²

both the above add up to d² meaning they are equal thus;

18²-e²=e²+6²

18²-6²=e²+e²

324-36=2e²

318=2e²

159=e²

e=12.61

Thus d²=e²+6²

d²=12.61²+6²

d²=159+36

d²=195

d=13.96

c²=e²+24²

c²=12.61²+24²

c²=159+576

c²=735

c=27.11

 

I hope this helps

3 0

3 years ago

Which expression has the same value as m-4 + 1/5-4

frutty [35]

If its m-4 + 1/5-4, it's b
if you meant m^-4 + (1/5)^-4, it should be a

7 0

3 years ago

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