1. 3/5
2. 2/7
3. 13/15
4. 59/60
5.29/30
6. 11/24
Answer:
x =16
Step-by-step explanation:
2x + 2x + x-8 = 4(x+2)
5x -8 = 4x +8
x = 16
5x + 4y = 8
2x - 3y = 17
(multiply the bottom equation by -2.5)
5x + 4y = 8
+
-5x + 7.5y = -42.5
—————————
(5x’s cancel out)
11.5y = -34.5
—— ———
11.5 11.5
y = -3
(Plug y in the equations to find x)
5x + 4(-3) = 8
5x - 12 = 8
5x = 20
—-
5
x = 4
(confirm using the other equation)
2(4) - 3(-3) = 17
8 + 9 = 17
17 does equal 17!
Each pouch has 4 coins.
7. the pouches contain one coin
8. the pouches should contain 0 to match, or it will always be uneven
So first make them inproper fractions
6 2/3 = 20/3
4 7/8 = 39/8
then you multiply them
20 * 39 = 780
3 * 8 = 24
12 can go into both numbers
780 <span>÷ 12 = 65
24 </span><span>÷ 2 = 2
the answer is 65/2 or if you want it simplified 32 1/2
Hope this helped you :)
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