Answer:
Emmanuel purchased 11 pounds of soil last week.
Step-by-step explanation:
If we want to find the number of pounds of soil Emmanuel purchased last week, we will have to work backwards.
We know that the amount is 5 lb more than twice the amount of potting soil he bought last week. This info gives us an equation.
2x + 5 = 27, as its twice the amount last week and 5 lbs more. Now we solve.
2x + 5 = 27 | Subtract 5 from both sides
2x = 22 | Divide both sides by 2
x = 11
We can solve it like:
3x^3+3x^2+x+1= (3x^3+3x^2)+(x+1)=
3x^2(x+1)+(x+1)=
= (x+1)(3x^2+1)
Have a good day
Answer:
4 hours
Step-by-step explanation:
We want to find at what x value, will y be the same for both companies. To do this, we can set the two expressions equal to each other.
25x+250=50x+150
To solve, we have to get all the variables to one side of the equation, and all the numbers to the other
Subtract 25x from both sides
250=25x+150
Subtract 150 from both sides
100=25x
Now, we have all the variables on one side, and the numbers on the other.
To isolate the variable, divide by 25
x=4
So, at 4 hours,the cost will be the same
Hope this helps! :)
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