The answer is x=3.6 or 3 3/5.
First we convert the decimal answer to a fraction; 0.9 is read as "nine tenths," so the corresponding fraction is 9/10:
1 5/6 - (x - 7/12) + 2 1/12 = 9/10
Now we find a common denominator. The first thing that 6, 12 and 10 will all divide into is 60:
1 50/60 - (x - 35/60) + 2 5/60 = 54/60
Distributing the negative, we have:
1 50/60 - x + 35/60 + 2 5/60 = 54/60
Combining like terms, we have:
-x + 4 30/60 = 54/60
Subtracting 4 30/60 from each side, we have:
-x + 4 30/60 - 4 30/60 = 54/60 - 4 30/60
-x = -3 36/60
Divide both sides by -1:
-x/-1 = (-3 36/60)/-1
x = 3 36/60 = 3 3/5 = 3.6
1) 2
2) 3
3) 4
4) 7
Hope this helps ^-^
The expression that is equivalent to 0.40a is
<h3>What are equivalent expressions?</h3>
Equivalent expressions are expressions that have equal values, when evaluated or simplified
The expression is given as:
0.40a
Rewrite the above expression as a fraction
Simplify the fraction
Hence, an equivalent expression of 0.4a is
Read more about equivalent expressions at:
brainly.com/question/2972832
Answer:
y = 3
Step-by-step explanation:
<em>2x + 3y = 9</em>
<em>-2x + 2y = 6</em>
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We have to add these two equations which gives us 5y = 15. Now, if you divide by 5 on both sides you get y = 3.
Answer:
See below.
Step-by-step explanation:
x^2 - 6x + 1 = 0
x^2 - 6x = -1
We halve the coefficient of x (which is -6/2 = -3) and square it, then add this to both sides:-
x^2 - 6x + (-3)^2 = -1 + (-3)^2
x^2 - 6x + 9 = -1 + 9
(x - 3)^2 = 8
x - 3 = ±√8
x = 3 ± √8
= 0.17, 5.83 to 2 decimal places.