Answer:
8x^4 - 41x^3 - 9x^2 - 33x + 27
Step-by-step explanation:
The screenshot given below will hopefully help you :)
Answer:
Tj hit 85% of the balls pitched to him
Step-by-step explanation:
Answer:
14 pounds
Step-by-step explanation:
The given equations can be solved for y by substituting for x. The first equation is convenient for writing x in terms of y.
<h3>Solution</h3>
x = 20 -y . . . . . . . subtract y from the first equation
7(20 -y) +5.5y = 119 . . . . . substitute for x in the second equation
140 -1.5y = 119 . . . . . . . . simplify
21 = 1.5y . . . . . . . . . . . add 1.5y -119 to both sides
14 = y . . . . . . . . . . . .divide by 1.5
14 pounds of soy nuts should be used in the mixture.
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<em>Additional comment</em>
There are many ways to solve a system of two linear equations. The attachments shows a matrix solution using a suitable calculator. It tells us that x=6 and y=14, as we found above.
The library gets 2625 dollars. If gift cards are 15 dollars and they sell 500 then they made 7,500 dollars and 35% of that is 2625 dollars