Let's test each alternative :
2 x - 9 y = 38 ( 7,5 ) :
( 2 * 7 ) - ( 9 * 5 ) = 38
14 - 45 = 38
-31 ≠ 38 ( wrong )
( 4 , - 1 ) :
( 2 * 4 ) - ( 9 * ( - 1 ) = 38
8 + 9 = 38
17 ≠ 38 ( wrong )
( 3 , - 3 ) :
2 * ( 3 ) - ( 9 * ( - 3 ) = 38
6 + 27 = 38
33 ≠ 38 ( wrong )
( 1 , - 4 ) :
2* ( 1 ) - 9 * ( - 4 ) = 38
2 + 36 = 38
38 = 38 ( Correct alternative )
( 1 , - 4 ) is correct alternative
X= 45+60
60+45=105
he earned $105 in the last two weeks
hope that helps and you rate me good;)
Answer:
20
Step-by-step explanation:
You basically just plug in the numbers given for the variables and solve.
2(7)+3(2) = 14+6= 20
14-6=8. So Ann has 8 more white socks than Bill. Hope this helps.
Answer:
D.
Step-by-step explanation:
Hope this helps :D