P is the midpoint of line QR. If PQ=7x - 3 and PR= 2x + 23. What is the length of QR?
+130116 P is the midpoint of line QR. If PQ=7x - 3 and PR= 2x + 23. What is the length of QR?
Then we have something like this:
Q--------------------------P----------------------------R
7x - 3 2x + 23
So PQ = PR and we have
7x - 3 = 2x + 23 add 3 to both sides and subtract 2x from both sides
5x = 26 divide by 5 on both sides
x = 26/5
So, using one of the equations
7(26/5) - 3 = 33.4 - PQ = PR and twice this = QR = 66.8
+118691 I have not made sense of you question yet but have you tried drawing a picture?
That is the first thing I would do!
+130116 P is the midpoint of line QR. If PQ=7x - 3 and PR= 2x + 23. What is the length of QR?
Then we have something like this:
Q--------------------------P----------------------------R
7x - 3 2x + 23
So PQ = PR and we have
7x - 3 = 2x + 23 add 3 to both sides and subtract 2x from both sides
5x = 26 divide by 5 on both sides
x = 26/5
So, using one of the equations
7(26/5) - 3 = 33.4 - PQ = PR and twice this = QR = 66.8
+8262 Good answers everyone... I should retire... After reading Chapter 2 of A Wizard of Earthsea, I should retire... Melody and CPhill have drawn too much water from the well... Rest my people, rest!...
