From the problem we now there were 98 passengers
let X = coach seats and Y equal sleeper car seats
so number of seats sold would be x + y = 98, which to solve for x can be rewritten as x = 98 -y
we know coach seats cost 128 and sleeper car seats cost 286
so we would multiply the cost of the seat by the number of seats to get a total cost
so 128x = total coast for coach and 286 = total for sleeper cars
we also know the total value is 20,128
so 128x + 286y = 20,128
replace x in that equation with the subtraction one from above:
128(98-y) + 286y = 20,128
now distribute the 1st part of the equation by multiplying 128 by 98 and by y
12,544 - 128y + 286y = 20,128
combine the like terms ( the two which have Y in them)
12,544 + 158y = 20,128
subtract 12,544 from both sides of the equation:
158y = 7584
divide both sides by 158 to solve for y
y = 7584 / 158 = 48
there were 48 sleeper car seats sold
and 98 - 48 = 50 coach seats sold
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Question:-</u></h2>
As a block of ice melts, its weight changes from 1 3/4 lb to 1/4 lb. This change takes 1/4 h. The ice melts at a constant rate. At what rate does the weight of the ice change?
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Answer:-</u></h2>
You should have these values backwards like:-
=> 1/34 lb is less than 1/4 lb.
<u>Next:-</u>
We're gonna find a specific common denominator,
Then we get: (17/68 - 2/68)/(1/4) = 60/68 = 15/17 lb/hour
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Answer:$7499 to the nearest dollar
Step-by-step explanation: 1.973% of $380,000=1.973/100×380,000=$(1.973×3,800)=$7499.4 =$7499 to the nearest dollar
15x over 2 dont know how to do it on computer