Equation: 4x+3=43
Solved: 4x=43-3
4x=40
X=10
Jack would need to buy 2 bags of sand.
To find the answer you first have to find the volume of the rectangular box which can be found using the formula length times width times height (remember that the numbers have to have the same unit so it would look like 3 times .5 times .2 if you convert them all the feet). the volume of the box is equal to .3
Then you could set the volume of the box equal to .15x to find how many boxes he would need. The formula would be .15x=.3
Divide by .15 to get x alone and you get 2 for the answer.
Answer: 3.5a+5b=470 and a+b=115
Step-by-step explanation:
Start at 4 and since it a negative go down one and over one
