What number is as much more than ten as it is less than one-half of what thirty is ten less than?
2006-08-13 16:32:04 · 9 answers · asked by Jerry M 3 in Science & Mathematics ➔ Mathematics
15
since 15 is right between 10 and 20, and 20 is half of 40 (30 being ten less than 40)
2006-08-13 16:39:22 · answer #1 · answered by iandanielx 3 · 0⤊ 0⤋
15
2006-08-13 17:11:57 · answer #2 · answered by Solomon Dump 3 · 0⤊ 0⤋
15
2006-08-13 17:01:57 · answer #3 · answered by billbowlerski 3 · 0⤊ 0⤋
15
2006-08-13 16:35:10 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Let the number be equal to say x
x-10 = 1/2 * ( 30 + 10) - x
x = 10+1/2(40) - x
x = 10 + 20 - x
adding 'x' to both the sides,
x+ x = 30 - x + x
2x = 30 (as +x - x = 0)
x = 30 / 2
= 15.
x = 15
So the answer , the number = 15.
2006-08-13 17:21:02 · answer #5 · answered by Anonymous · 0⤊ 0⤋
what thirty is ten less than? = 40
one-half what thirty is ten less than = 20
What number is as much more than ten as it is less than one-half of what thirty is ten less than?
answer = 15
2006-08-13 17:32:50 · answer #6 · answered by Anonymous · 0⤊ 0⤋
15!
2006-08-14 12:32:26 · answer #7 · answered by Sk8erboi83 3 · 0⤊ 0⤋
15... but formally
x-10 = 1/2 * ( 30 + 10) - x
2x = 10+1/2(40) = 30
x = 15
2006-08-13 16:49:37 · answer #8 · answered by Anonymous · 0⤊ 0⤋
mhmm. 15.
2006-08-13 16:39:39 · answer #9 · answered by Anonymous · 0⤊ 0⤋