Answer:
1.75...?
Step-by-step explanation:
Uhh... Well if you're that desperate I'll try it.
If the actual football diameter is 21
Plug it into 1 : 12
x : 21
x / 21 = 1 / 12
12x = 21
x = 7 / 4
I don't really understand what the problem's asking though so this is probably wrong.
Answer:
Step-by-step explanation:
7/10 + (-5/6) =
7/10 - 5/6 =
21/30 - 25/30 =
- 4/30 which reduces to -2/15 <== reduced proper fraction
Let y and x be the numbers that varies directly (that means they keep the same proportion)
Then we have 7y = 3x, OR y/x =7/3 (this ratio should be kept for any value of x and y:
y/x = 7/3, if y = 28, then 28/x = 7/3 or x = (3)(28)/7 = 12
SO X = 12
5/8 minus 1/4 is:
←Make them common denominator
←Do the subtraction
←There is your answer
Simplify the following:
1/3 - 1/6 + 4/18
The gcd of 4 and 18 is 2, so 4/18 = (2×2)/(2×9) = 2/2×2/9 = 2/9:
1/3 - 1/6 + 2/9
Put 1/3 - 1/6 + 2/9 over the common denominator 18. 1/3 - 1/6 + 2/9 = 6/18 - 3/18 + (2×2)/18:
6/18 - 3/18 + (2×2)/18
2×2 = 4:
6/18 - 3/18 + 4/18
6/18 - 3/18 + 4/18 = (6 - 3 + 4)/18:
(6 - 3 + 4)/18
6 + 4 = 10:
(10 - 3)/18
10 - 3 = 7:
Answer: 7/18
