In the equation 30x=40, x is the number 30 is multiplied by in order to equal 40.
Chat with our AI personalities
mm is millimeters & wt is weight
The abbreviation for penny is d, from the Roman denarius. The wt is an obvious abbreviation of weight.So penny+weight = d+wt = dwt
weight of ISMC 400
Answer: 170ml of 5% acid must be added to30 ml of 25% to get 200ml of 8% acidLet x = wt of 5% acidy = wt of 25% acidEquations:x + y = 200ml ----equation 10.05x + 0.25y = 0.08(200)0.05x + 0.25y = 16 -----equation 2multiply equation 2 by 1005x + 25y = 1600 -------equation 3multiply equation 1 by -5-5x -5y = -1000 ------- equation 4eliminateequations 3 and 45x + 25y = 1600-5x - 5y = -1000=====================0 +20y = 600divide by 20y = 30substitute y = 30 in equation 1x + 30 = 200x = 200 - 30x = 170
157 kg per unit wt