The grid lines will help you find an exact solution (assuming the two lines actually cross at a grid intersection point). However, the two lines may intersect somewhere off the grid lines which is when an estimation will be the next best thing.
Answer:
The weigh of air in the room having volume 38.22 m³ is 49.68 kg
Step-by-step explanation:
Given as :
Length of room = 4.2 m
Width of room = 3.5 m
Height of room = 2.6 m
So , volume of room = Length × Width × Height
Or, volume of room = 4.2 m × 3.5 m × 2.6 m
∴, volume of room = 38.22 m³
Now,
∵ 10 m³ of air weigh 13 kg
so, 1 m³ of air weigh = 
kg
∴ 38.22 m³ of air weigh = kg × 38.22 kg
I.e 38.22 m³ of air weigh = 49.68 kg
Hence The weigh of air in the room having volume 38.22 m³ is 49.68 kg Answer
Answer:
1. a = 2
2. x = 12
3. w = 2
Step-by-step explanation:
1. ok so 2a/5 we would want to separate it to 2/5 and a/5
2/5 x a/5 = 2a/5
next we want to subtract 2/5 from 8/10
8/10 - 2/5 or 8/10 - 4/10 = 4/10
now you have a/5 and 4/10
a/5 = 4/10
now you multiply each side by 5
a/5 x 5 = a
4/10 x 5 = 20/10 or 2
a = 2
2. ok so the x is kinda on it's own for this one but we still wan to get the x and the other numbers on opposite sides
1/16x + 1/4 - 1/4 = 1/16x
1/2 + 1/4 = 3/4
now we do that same last step
1/16x / 1/16 = x
3/4 / 1/16 = 12
x = 12
3. ill do one more and if you need more help just tell me
for this on we have the w on both sides so we have to get the variable(w) and the numbers on opposite sides
2w - 2 + 2 = 2w
1/2w + 7 - 1/2w = 7
2w + 1/2w = 5/2w or 2 1/2w
7 - 2 = 5
now we have to divide each side by 5/12 or 2 1/2
5/2w / 5/2 = w
5 / 5/2 = 2
w = 2
Answer:
55
Step-by-step explanation:
Answer:
Step-by-step explanation:
