Tienes que buscar el minimo multiplicator comun(?). perdon no se Como se llama xD. pero se juntan cada 15. dias
si la Ultima vez que coinsidieron fue 2 la siguiente Sera 17 de maayo
3/6 6/9 9/12 and so on just keep adding 2/3
(5a+7b)-(3a+2b)
When there is a in front of an expression in parentheses, change the sign of each term in the expression
5a+7b-3a-2b
collect the like terms
5a-3a= 2a
7b-2b= 5b
answer: 2a+5b
hope this helps! :)
Let a=number of pens and b=number of pencils.
8a+7b=3.37; 5a+11b=3.10.
To eliminate a variable multiply the first eqn by 5 and the second by 8:
40a+35b=16.85, 40a+88b=24.80.
Subtract these equations: 53b=7.95, b=$0.15. So 5a=3.10-1.65=$1.45, a=$0.29.
Pens are $0.29 each and pencils $0.15.
Answer:
The numbers are 11 and 65
Step-by-step explanation:
11 + 65 = 76
65 - 11 = 54
