Homework Help: math

Posted by princess aimee f. santos on Saturday, July 14, 2012 at 2:15pm.

i am a 9 digit number.i have 5 in my hundred thousands place.the digit in my thousands plce is 3 more than the digit in my hundred thousands place.the digit in my hundred millions place is half the digit in my thousands place.the digit in my ten millions place is the sum of the digits in my hundred millions and hundred thousands places.the rest of the digits are zerous.what number am I?

math - Steve, Saturday, July 14, 2012 at 2:55pm
the number is abc,def,ghi
d=5 so abc,5ef,ghi
f=d+3, so abc,5e8,ghi
a=f/2=4, so 4bc,5e8,ghi
b=a+d=9, so 49c,5e8,ghi
rest=0, so 490,508,000
math - princess aimee f. santos, Saturday, July 14, 2012 at 3:53pm
write the roman numerals that comes before;
1. CDX__________
2. MMD____________
math - pafs, Saturday, July 14, 2012 at 4:38pm
find the value of the missing number;
1. 48+85-N-39=21
2.96+15-N+76=100

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