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miss Akunina [59]
3 years ago
11

A construction compony purchased 24 boxes of nails. Each box cost $87. How much did the nails cost the construction company?

Mathematics
1 answer:
S_A_V [24]3 years ago
7 0
87*24=2088

The nails cost $2088
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PLEASE HELP!!
ruslelena [56]

Answer: 104 miles

Step-by-step explanation:

If 2.5 in = 52 mi, and 2.5 × 2 = 5, then 2.5(2) = 52(2)

5 in = 104 mi

3 0
3 years ago
Please help . 20 points for right answer
siniylev [52]
You would add up the percentages first, which would bring everything up to 35%. You would then take the original cost of the item, which is $30 and multiple it by the 35%. 

The equation would look like...

30 x .35 = 

This will give you $10.50, which isn't the final answer.

You would then subtract 10.50 from the $30 that was asked for at the beginning by the retailer. 

Your final answer is $19.50. :) Which isn't a bad deal if I say so myself.
3 0
2 years ago
A train travels 110 km in the same time that a plane covers 385 km. If the speed of the plane is 20 km per hr less than 4 times
slamgirl [31]

Answer:

  • train: 40 kph
  • plane: 140 kph

Step-by-step explanation:

Let t represent the speed of the train in km/h. Then 4t-20 is the speed of the plane. Travel times are the same, so we can use the formula ...

  time = distance/speed

and equate the travel times.

  110/t = 385/(4t-20)

Cross multiplying gives ...

  110(4t -20) = 385t

  440t -2200 = 385t . . . . . eliminate parentheses

  55t -2200 = 0 . . . . . . . . . subtract 385t

  t -40 = 0 . . . . . . . . . divide by 55

  t = 40 . . . . . . . . . . . add 40; train's speed is 40 kph

  4t -20 = 140 . . . . . . find plane's speed; 140 kph

The train's speed is 40 km/h; the plane's speed is 140 km/h.

_____

<em>Check</em>

Train's travel time = 110 km/(40 km/h) = 2.75 h.

Plane's travel time = 385 km/(140 km/h) = 2.75 h.

4 0
2 years ago
Read 2 more answers
Is the equation y=2x a function
soldier1979 [14.2K]

Yes. It's a linear function.

<u>x | y</u>

<u>0| 2(0) = 0</u>

<u>1| 2(1) = 2</u>

<u>2| 2(2) = 4</u>

3 0
3 years ago
Read 2 more answers
Dan buys a car for £2200.
pashok25 [27]

Answer:

£1134

Step-by-step explanation:

0.5%×6 = 3.0% ≈ 3%

\frac{3}{100} × 2200 = 3 × 22 = 66 (we shorten the zeros ⇒ ∅∅)

2200 - 66 = £1134

3 0
3 years ago
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