When dealing with fractions, take the whole as 1.
in this case, the whole class is 1;
fraction of votes for Andrew: 1-1/2 -1/4 - 1/5
these fractions have different denominators (bottom), to continue, you have to make the denominators the same;
to do that, I usually count by the largest one. In this case, it is a 5. 5 is not divisible by 2 or 4, so I move on to 10. 10 is still not divisible by 2 and 4, so try 15, then 20.
20 works, so make all the denominators to 20. Remember 1 is 20/20:
20/20- 10/20 -5/20 -4/20 =1/20
so the fraction of votes Andrew got was 1/20.
For answer b, the whole is no longer 1. the whole is now 100.
1/2 of 100=50 for Amy
1/4 of 100=25 for Sophie
1/5 of 100=20 for Ryan
1/20 of 100=5 for Andrew
Notice the numbers add up to be exactly 100
Solve by using <span>Quadratic Formula
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In this case,
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Answer:
26. <u>c. 6 cm</u>
27. <u>c. 70 cm³</u>
Step-by-step explanation:
<u>Question 26</u>
- Volume = Length × Width × Height
- 360 = 10 × 6 × Width
- Width = 6 cm
- <u>c. 6 cm</u>
<u></u>
<u>Question 27</u>
- Volume = Length × Width × Height
- Volume = 7 × 5 × 2
- Volume = 70 cm³
- <u>c. 70 cm³</u>
<u></u>
<u>Question 28 (not entirely visible)</u>
Answer:
(-4,2)
Step-by-step explanation:
when rotated about 180 degrees, you change both signs
Get out your graphing paper. Since the slope formula is y=mx+b, we can say that +4 is b, which also stands for the y-intercept. Because +4 is the y intercept, place a point on (0,4). Then, using the slope (m or 3), we can figure out where the second point will go.
Slope is another word for rise over run. In this case it is 3/1 because that is what 3 is when converted to a fraction. So, from (0,4), we go up 3 and over to the right by 1 to plot the second point, (1,7). Connect the plotted points with the ruler.
Tldr; Plot a point at (0,4) because the y intercept is +4, plot a point at (1,7) because the slope is 3/1, and use a ruler to connect the two points in a line.