In a 3-digit number, the hundreds digit is four more than the units digit, and the tens digit is three less than the sum of the other two digits. If the sum of all three digits in the number is 17, find the three digits. Then find the number.

773

Step-by-step explanation:

Hello,

Let's note the digit a,b and c so that the number we are looking for is a*100+ b*10 + c

a = c + 4

b = (a + c) - 3

a + b + c = 17

I replace a and b in the last equation

c + 4 + (c+4 +c) - 3 + c = 17

c + 4 + c + 4 + c -3 + c = 17

4c + 5 = 17

4c = 17 -5 = 12

c = 12/4 =3

Then, a = 3 + 4 = 7

b = (7+3)-3=7

And the winner is

773

answer: there are x+184 pages in olivia's book.

step-by-step explanation:

let the total number of pages in the book which olive has already read be x.

then if olive has 184 pages left to read, then the total number of pages are in olive's book= pages she has read+pages she has left to read

therefore, the total number of pages in olivia's book=

hence, there are x+184 pages in olivia's book.