In a certain clothing store, 4 shirts and 6 ties cost $70, and 2 shirts and 4 ties cost $42. what is the cost of each tie?

$7

$12

$18

Each tie would cost $7

(s=each shirt t=each tie)

4s+6t=70

2s+4t=42

6•7=42

70-42=28

28/4=7

4•7=28

42-28=14

14/2=7

Each tie costs $7 and each shirt also costs $7.

ion

step-by-step explanation:

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the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870