2007-06-05 08:33:48 · 7 answers · asked by cherry9595 1 in Education & Reference ➔ Homework Help
Let Mary's height be x.
Then ( 160 + 156 + 147 + 146 + x ) / 5 = 152.4
Add up the numeric terms on the left:
( 609 + x ) / 5 = 152.4
Multiply by 5:
609 + x = 762
Subtract 609:
x = 153.
2007-06-05 08:39:37 · answer #1 · answered by Anonymous · 0⤊ 1⤋
(160 + 156 + 147 + 146)/4 = 152.4
I'm assuming you're asking what is Mary's weight that would keep the average 152.4.
(160 + 156 + 147 + 146 + x) / 5 = 152.4
(609 + x) / 5 = 152.4
609 + x = 762
x = 153
Mary weighs 153 pounds.
2007-06-05 08:44:48 · answer #2 · answered by Huge 2 · 0⤊ 1⤋
The "mean" is the average of something. The average is found by the sum of the total heights divided by the number of players.
So 152.4 = (160 + 156 + 147 +146 + Mary's Height) / 5.
Solve for Mary's Height.
2007-06-05 08:42:07 · answer #3 · answered by DanG. 2 · 0⤊ 1⤋
Let x = Mary's height
(160+156+147+146 + x)/5 = 152.4
(609 + x)/5 = 152.4
(609 + x) = 5*152.4
x = 153
.
2007-06-05 08:40:59 · answer #4 · answered by Robert L 7 · 0⤊ 1⤋
(160+156+147+146+x)÷5=152.4
(609+x)/5=152.4
609+x = 152.4(5)=762
x=153
http://www.coolmath.com
2007-06-05 08:41:42 · answer #5 · answered by Anonymous · 0⤊ 1⤋
153
2007-06-05 08:39:17 · answer #6 · answered by Talaupa 5 · 0⤊ 0⤋
mary's height would be 153
2007-06-05 08:39:24 · answer #7 · answered by kleino383 3 · 0⤊ 0⤋