Answer:
- 3/4 - 1/4 = 1/2
- 5/8 - 1/8 = 1/2
Step-by-step explanation:
You can pick just about any fraction with an odd numerator and find another at distance 1/2 from it.
For example, 5/7 - 1/2 = 10/14 - 7/14 = 3/14. So your subtraction problem can be ...
5/7 - 3/14 = 1/2
Choosing a denominator divisible by 4 can make both parts of the problem use the same denominator.
3/4 - 2/4 = 1/4, so the corresponding subtraction problem is 3/4 - 1/4 = 1/2.
5/8 - 4/8 = 1/8, so the subtraction problem is 5/8 -1/8 = 1/2.
Answer:
Step-by-step explanation:
x-y=7
-3x+9y=-39
Divide the second equation by 3
-x +3y = -13
Add this to the first equation
x-y=7
-x +3y = -13
----------------------
0x +2y = -6
Divide by 2
2y/2 = -6/2
y = -3
Now find x
x-y = 7
x -(-3) = 7
x+3 = 7
Subtract 3 from each side
x = 4
(4,-3)
Or by substitution
x-y=7
solve for x
x = 7+y
-3x+9y=-39
Substitute y+7 in for x
-3(7+y) +9y = -39
Distribute
-21 -3y +9y = -39
Combine like terms
-21 +6y = -39
Add 21 to each side
6y = -18
Answer: A.
Step-by-step explanation:
Answer:
111 1/3 feet tall
Step-by-step explanation:
Answer: i dont see anything to answer the question
Step-by-step explanation:
