Interest earned: $60
Balance of the account: $660
The value of the coefficient B is 9.
2(x+By)(x-2y)
=2(x^2 -2xy +Bxy -2By^2)
=2x^2 -4xy + 2Bxy - 4By^2
The original form is 2x^2 + 14xy - 36y^2
-36y^2 = -4By^2
B= 9
-4xy +2Bxy= 14xy
xy(-4 +2B)= 14xy
-4 + 2B = 14
2B = 18
B=9
Answer:
469 miles
Step-by-step explanation:
divide 603 by 9 which is 67, multiply 7 into 67 and the answer into that is 469
hope that helps:)
The answer is D and it's pretty simple to do:
