Dr, j is playing in her garden again. she needs 1 kg of potting soil for her plants. she has 750 g. how much more does she need? explain your answer.

Dr. J has 750g or .75 kg of dirt
So she needs .25 kg more dirt or 250g of dirt.
since 1-.75=.25

1. isolate the variable, in this case, d. subtract 35.5 on both sides of the equation.2. 52 subtracted by 35.5 is 16.53. therefore your answer would be d= 16.5this is the basics of pre algebra, isolating variable through adding, subtracting, multiplying, and dividing, if you have any other questions to ask just comment!