Answer: 67.5 cm
Step-by-step explanation:
Jason has 4 lengths of ropes
first is 
second is 
Third is ![0.3\ m\approx 30\ cm\quad [\text{1 m = 100 cm}]](https://tex.z-dn.net/?f=0.3%5C%20m%5Capprox%2030%5C%20cm%5Cquad%20%5B%5Ctext%7B1%20m%20%3D%20100%20cm%7D%5D)
fourth is ![0.5\ ft\approx 6\ in.\approx 15\ cm\quad [\text{1 ft=12 in.}]](https://tex.z-dn.net/?f=0.5%5C%20ft%5Capprox%206%5C%20in.%5Capprox%2015%5C%20cm%5Cquad%20%5B%5Ctext%7B1%20ft%3D12%20in.%7D%5D)
the total length of rope is the sum of four lengths
Answer:
It costs $51
Expression:
16x = 68
12x = ?
Step-by-step explanation:
Lets first find out how much one sq. ft. of flooring costs:
16x = $68
x = $68/16 = $4.25
Next, lets multiply the unit rate by 12 to find the answer:
12x = Answer
12 * (4.25) = $51
In case the user wants to see workings. These problems can easily be solved on a calculator, but can we work them out in our heads? ;)
9.34-3.029
=9.340-3.029
=9.340-3.000-0.029
=6.340-0.029
=6.311
Answer:
Sine Formula or Sine Rule :
BC / sinA = AC / sinB
60 / sinA = 84.95 / sin(115°)
60 / sinA = 84.95 / 0.91
60 / sinA = 93.7
sinA = 60 / 93.7
sinA = 0.64
A = arc(sin0.64)
A = 39°48'30"
A ≈ 40°
Hence, the value of angle BAC is <u>40°</u>
- <u>40°</u> is the right answer.
Hello!
You can make two expressions based on what you know
2l + 2w = 52
w = l - 2
You can put w in the first equation
2l + 2(l - 2) = 52
Distribute the 2
2l + 2l - 4 = 52
Combine like terms
4l - 4 = 52
Add 4 to both sides
4l = 56
Divide both sides by 4
l = 14
We can put this into the second equation to get the width
w = 14 - 2
w = 12
The length is 14 and the width is 12
Hope this helps!
