The answer would be =<span>11/<span>20--Welcome , hopes this helps :P</span></span>
Answer:
B- 7/12 and 17/18
Step-by-step explanation:
Get the fractions under a common denominator.
- A: 1/3=6/18. 5/6=15/18. 4/9=8/18.
- B: 7/12=21/36. 5/6=25/36. 17/18=34.
- C: 11/12=33/36. 5/6=25/36. 31/36=31/36.
- D: 1/4=6/24. 5/6=20/24. 5/8=15/24.
Out of A, B, C, and D– only B works.
Setting the scene for a story means giving your reader interesting details of time and ... Take, for example, David Mitchell's scene-setting near the start of his novel i want you to be its conscience, the eyes in the trees.
To find the rate (or speed) of an object you use the equation
Rate = Distance x Time or
d = rt So, just fill in the equation with the first set of numbers.
64 = r(1.7) Then divide.
r ≈ 37.65
Then, find the second speed.
d = rt
80 = r(1.9) And divide.
r ≈ 42. 11
Since you need to find the average speed just find the average of the two speeds. So
(42.11 + 37.65) / 2
79.76 / 2
39.88
So the average speed of the train was about 39.9 miles per hour.
Answer:
1 kg of 30% gold and 3 kg of 10% gold
Step-by-step explanation:
Let us take "x" kg of 30% gold, and
"y" kg of 10% gold
We need to make 4 kg of 15% gold, that would be:
4(15%) = 4 (15/100) = 4(0.15) = 0.6kg
We can now write an equation as:
30%x + 10%y = 4(0.15)
0.3x + 0.1y = 0.6 <u>(equation 1)</u>
Also, we know there will be 4 kg from "x" and "y", so we can write:
x + y = 4
or x = 4 - y
We substitute this into equation 1 and solve for y first:
0.3x + 0.1y = 0.6
0.3(4 - y) + 0.1y = 0.6
1.2 - 0.3y + 0.1y = 0.6
0.2y = 0.6
y = 3
And x = 4 - y, x = 4 - 3 = 1
So,
1 kg of 30% gold and 3 kg of 10% gold
