Answer:
1,784=1,780
Step-by-step explanation:
because the tens column is 4,it is not greater than 5 but less than 5.due to this, the 1,784 becomes 1,780 because in this a number less than five will automatically become 0
8* oranges + 1 graperfuit = 4.60
6* oranges + 3 grapefruit = 4.80
multiply the first equation by 3
24 oranges + 3 grapefruit = 13.8
subtract the 2nd equation
24 oranges + 3 grapefruit = 13.8
-6* oranges + 3 grapefruit = 4.80
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18 oranges = 9
oranges = .50
6 oranges + 3 grapefruit = 4.80
6 * .5 + 3 grapefruit = 4.80
3 + 3 grapefruit = 4.80
subtract 3 from each side
3 grapefruit = 1.80
grapefruit = .60
Answer: oranges $ .50
grapefruit = $.60
18/4 = x/30
18x30 /4 = 135 minutes or 2 hours and 15 minutes.