How can we write an algebraic expression to describe a two-digit number whose unit's digit is 5 less than the ten's digit?
1 answer:
Answer:
Let x= the ones digit
Then x+5=the tens digit
Hence the equation is: 10(x+5)+x=x+5+x+63
10(x+5)+x=x+5+x+63
10x+50+x=2x+68
11x+50=2x+68
-2x-50 -2x-50
---------------------
9x=18 Divide both sides of the equation by 9
x=2
Hence the number is 10(2+5)+2=10(7)+2=70+2=72.
You might be interested in
Answer:
1. veinte (10 * 2 = 20)
2. tres ( 12 ÷ 4 = 3)
3. veinte (18 + 2= 20)
4. diez ( 15 - 5 = 10)
5. once (14 - 3 = 11)
Answer:
you are correct
Step-by-step explanation:
The Value Of S Is 100 or $1.00 or if you add it with the stamp collection then it'll be $6.55.
16b +5c -10 -8c +2b
18b - 3c -10