Martina leaves home at 9 A.M., bicycling at a rate of
24 mi/h. Two hours later, John leaves, driving at the rate of 48 mi/h. At what time will John catch up with Martina?
There are 850 Douglas fir and ponderosa pine trees in a
section of forest bought by Sawz Logging Co. The company paid an average of $300 for each Douglas fir and $225 for each ponderosa pine. If the company paid $217,500 for the trees, how many of each kind did the company buy?
A common mistake when solving equations is the following:
The equation: 2(x - 2) = x + 3
First step in solving: 2x - 2 = x + 3
2007-01-15 09:04:19 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
3. 2(x - 2) = x + 3 > (2x - 2 = x + 3 is incorrect)
First: eliminate parenthesis > use distribution - multiply the outer term with the terms in the parenthesis...
2(x) - 2(2) = x + 3
2x - 4 = x + 3
Sec: combine "like" terms > add 4 to both sides...
2x - 4 + 4 = x + 3 + 4
2x = x + 7
*subtract "x" from both sides...
2x - x = x - x + 7
2x - x = 7
x = 7
2007-01-15 09:10:32 · answer #1 · answered by ♪♥Annie♥♪ 6 · 1⤊ 0⤋
1pm
2007-01-15 17:10:46 · answer #2 · answered by hottotrot1_usa 7 · 0⤊ 0⤋
I'm not doing your homework for you.
2007-01-15 17:08:54 · answer #3 · answered by OMGWTFBBQ!!1 3 · 0⤊ 1⤋