SOLUTION: How do I solve using two equations with two variables?
The units digit of a two-digit number is 4 times the tens digit. If the digits are reversed, the new number is 54 more th
Algebra.Com
Question 141498This question is from textbook Prentice hall algebra 1
: How do I solve using two equations with two variables?
The units digit of a two-digit number is 4 times the tens digit. If the digits are reversed, the new number is 54 more than the original number. Find the number.
This question is from textbook Prentice hall algebra 1
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
IN MATH THERE IS NO SUCH THING AS 'CLOSE'.
CLOSE ONLY COUNTS IN HORSE-SHOES & HAND-GRENADES.
MATH IS A VERY PRECISE SYSTEM WITH 1 & ONLY 1 CORRECT ANSWER.
-------------------------------------------------------------------
Y=4X [Y BEING THE UNITS DIGIT & X BEING THE TENS DIGIT.]
10X+Y=10Y+X-54 NOW REPLACE Y WITH 4X AND SOLVE FOR X IN THIS EQUATION
10X+4X=10*4X+X-54
14X=40X+X-54
14X=41X-54
14X-41X=-54
-27X=-54
X=-54/-27
X=2 ANSWER FOR THE TENS DIGIT IN THE ORIGINAL NYMBER.
Y=4*2=8 FOR THE UNITS DIGIT.
PROOF
28=82-54
28=28
RELATED QUESTIONS
How do I solve by using a system of two equations in two variables?
The units digit of (answered by ankor@dixie-net.com)
I am so stuck! How do I solve using two equations with two variables?
The tens digit... (answered by solver91311)
A two digit number the sum of its two digits is three times of its units digit and its... (answered by Theo)
The units digit of a two-digit number exceeds the tens digit by 2. Find the number if it... (answered by stanbon)
How do I solve by using two equations and two variables?
The sum of the digits of a... (answered by ankor@dixie-net.com)
How do I solve using a system of two equations in two variables?
The sum of the digits (answered by checkley77)
The product of a two-digit number and its unit digit is 96. Find the two digit number if... (answered by josgarithmetic)
How do I find the expression for any two digit number where the tens digit is twice the... (answered by mouk)
The units’ digit of a two-digit number is 2 more than 3 times the tens’ digit. When the... (answered by josmiceli)