In the problem, the first equation should be represented like this base on the variable given in the problem:
20p + 9t = 44.4
with that equation, the second equation would is given by this formula, in response with the additional number of paperback and textbook
21p + 14t = 51
to get the system equation in getting the mass of each variable, you should subtract the two equation to simplified the formula.
20p + 9t = 44.4
- 21p + 14t = 51
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p + 5t = 6.6 // this is the system equation that could be use in getting the mass of each object
Two equivalent fractions equations are
r + 6
6 + r <span />
B. 6.6 kg explanation: 4 x 8.25 = 33 divded by 5 is 6.6
Y = 3x + 25, because I’m assuming that that you start by renting 25 movies.