Answer: i don,t know sorry but i wish you the best of luck
Step-by-step explanation:
<span>(8x+7)/6 + (3-2x)/4-(5x-2)/2=32
2(8x+7) + 3(3-2x) - 6(5x-2) = 384
16x + 14 + 9 - 6x - 30x + 12 = 384
-20x + 35 = 384
-20x = 349
x = -17.45
</span>
Answer:
2/3
Step-by-step explanation:
1. We assume, that the number 320 is 100% - because it's the output value of the task.
<span>2. We assume, that x is the value we are looking for. </span>
<span>3. If 320 is 100%, so we can write it down as 320=100%. </span>
<span>4. We know, that x is 45% of the output value, so we can write it down as x=45%. </span>
5. Now we have two simple equations:
1) 320=100%
2) x=45%
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
320/x=100%/45%
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.
7. Solution for what is 45% of 320
320/x=100/45
<span>(320/x)*x=(100/45)*x - </span>we multiply both sides of the equation by x
<span>320=2.22222222222*x - </span>we divide both sides of the equation by (2.22222222222) to get x
<span>320/2.22222222222=x </span>
<span>144=x </span>
x=144
<span>now we have: </span>
<span>45% of 320=144</span>
