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anygoal [31]
4 years ago
9

Subtract and simplify:. . (2x2 + 5x – 4) – (3x2 – 7x + 1). . A.. –x2 + 12x – 5. . B.. –x2 – 2x – 3. . C.. 5x2 – 2x – 3. . D.. x2

+ 12x – 3
Mathematics
1 answer:
Nataliya [291]4 years ago
6 0
The correct answer is a
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y= -15x +3

Step-by-step explanation:

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The delivery person weighs 150lb and each box of books weigh 40lb the maximum capacity of the elevator is 1020lb how many box of
padilas [110]

Answer:

21 box of books can be brought up by the delivery person at one time

Step-by-step explanation:

Here, we want to know the number of box of books that the delivery person could bring up at one time.

Let the number of boxes be x , so the total mass of the boxes that could come up at a time will be x * 40 = 40x lb

Let’s add this to the mass of the delivery person = 150 lb

So the total mass going inside the lift would be 150 + 40x

So we have to equate this to the maximum capacity of the lift;

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40x = 1020 - 150

40x = 870

x = 870/40

x = 21.75

Now since we cannot have fractional boxes, the number of boxes that could come into the lift without exceeding the maximum capacity of the lift is 21

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3 years ago
Last year 40 people adopted a manatee through Fias Foundation. This year 30%more people adopted a manetee.How many more people a
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Three hamburgers and one milkshake cost $6.80. Two hamburgers and one milkshake cost $5.30
sergij07 [2.7K]
Each burger costs $1.50, and the milkshake costs $2.30. I subtracted the $6.80 from the $5.30, which shows the price of one burger. 
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PLEASE HELP PLEASE!!
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The square root of 75 is 8.66, so it would be between 8 and 9
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