Let the two numbers be x and y.
According to your question;
x + y = 7
10y + x = 10x + y + 9
By equation 1 ; x = 7-y
Substituting the value of x ;
10y + ( 7 -y) = 10(7-y) + y + 9
9y + 7 = 70 -10y + y + 9
9y + 7 = 70 - 9y + 9
=> 18y = 70 -7 + 9
=> 18y = 72
=> y = 4
Substituting for x ;
x = 7 - y
=> x = 7 -4
=> x = 3
Thus, x = 3 and y = 4;
=> The number is 34.
Answer:
Step-by-step explanation:
If you are asking what 3x2-48 is, then the rules of Pemdas would be relevant in this.
First we would multiply. So, 3 times 2 is 6.
Then, 6-48 is -42
Step-by-step explanation:
wait a person was about to report it sorry ;/
had to take it off
Answer:
26 students
Step-by-step explanation:
46/2=23
23 plus the 3 that didnt come equal 26 in total.
Answer:
Mr. Edelstein drove 48 miles per hour.
Step-by-step explanation:
12 miles for every 15 minutes
There are 60 minutes in an hour
Divide 60 by 15= 4
So you would multiply 12 by 4= 48
