Posted by Randy Davis on September 28, 2002 at 13:01:11:
In Reply to: Re: Please show how did you attempt to solve these problems (n/t) posted by Randy Davis on September 28, 2002 at 12:57:34:
: : : 1. X+Y=44
: : : Y=2(X-A)
: : : Y-A=(X+B/2
: : : X+B= 3(Y-C)
: : : Y-C= 3(X-C)
: : : Solve for X and Y in terms of A, B, and C.
: : : 2. Maddux, Smoltz, and Wohlers pitched a total of 576
: : : innings. Maddux pitched 8 2/3 fewer than Smoltz and
: : : 167 2/3 more than Wohlers. How many did each pitch?
: : : 3. 2 ladders are crossed in an alley. They are
: : : supported by a vertical wall. The ladders are 40
: : : feet and 60 feet in length. They intersect 10 feet
: : : above the ground. How wide is the alley?
: : : 4. A banana peel weighs 1/8 the total weight of the
: : : banana. If an unpeeled banana is put on a scale and
: : : it just balances a peeled banana of the same weight
: : : plus 7/8 of an ounce, how much does the banana with
: : : peel weigh?
: : : Please give a detailed explanation with each. Thanks for your assistance.
FOLLOW UP:
1. I tried substitution and for system of equations. I don't know if they are simultaneous.
2. M+S+W= 576 is all I could figure out.
3. I have no idea where to start.