Answer:
I think it's A
...........................
Answer: 5 dollars
Step-by-step explanation:
17
Answer:
4/3/8
Step-by-step explanation:
12/1/2-8/8/1
=25/2-65/8
=100-65/8
=35/8
=4/3/8
2x^2 + 17x -21 cannot be factored nicely, if it was +21 you could, but the zeros for this have to gotten using the quadratic equation
-b +/- (b^2-4ac)^1/2
2a
so
-17 +/- (17^2-4(2)(-21))^1/2
2(2)
-17 +/- (457)^1/2
4
so the zeros are roughly 1.094 and -9.594
$1.30. You can take the two statements and make them into equations. First set X equal to the number of dimes and Y equal to the number of quarters. Next set up your equations. the first .1X times .25Y=4.55 and X=Y. Next use substitution to solve for X, and you get 13. Next multiply 13 times .1 to get 1.3 which is in dollars.