Exact Form:
-31/4
Decimal Form:
−7.75
Mixed Number Form:
− 7 3/4
Answer:
6 1/3
Step-by-step explanation:
(2 2/3) + (3 2/3) = (2 + 3) + (2/3 + 2/3) = 5 + 4/3
= 5 + (1 1/3) = 6 1/3
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<em>Comment on the method</em>
Often it works well to add the integer parts and fractional parts separately, then make adjustments in the final result.
You can convert all the numbers to improper fractions, then back:
= 8/3 + 11/3 = 19/3 = 6 1/3
Doing this requires you to do 3 conversions between mixed numbers and improper fractions, whereas the method shown above only does 1 conversion (at the end).
Answer: x=0
Step-by-step explanation: -1.2(3x-3) = 4(3x+0.9) -3.6x+3.6=12x+3.6 -3.6x-12x+12x=12x+3.x+12x -15.6x+3.6-3.6=3.6-3.6 -15.6x/-15.6=0/-15.6 x=0
Answer:
-5(3x+4) = 25
-15x-20=25
-15x=25+20
-15x=45
>then divide both side by -15
Therefore: X=-3
4(x+2)-3(2x-4)=10
4x+8-6x+12=10
-2x+20=10
-2x=-10
> divide both sides by -2
Therefore: x= 5
