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Alex17521 [72]
2 years ago
14

A weather station on the top of a mountain reports that the temperature is currently 0°C and has been falling at a constant rate

of 3°C per hour. If it continues to fall at this rate, find each indicated temperature.
Mathematics
1 answer:
stich3 [128]2 years ago
5 0

Answer:

-6°C

-15°C

 -1.5°C

Step-by-step explanation:

The computation is shown below:

in one hour the temperature falls by 3°C i.e.

= 0 - 3

= -3°C

In  two hours

= 2 ×  - 3°C

= -6°C

In  five hours

= 5 × -3°C

= -15°C

in half an hour

= 0.5 × -3°C

= -1.5°C

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AleksAgata [21]

Answer:

The correct answer is 8cm.

Step-by-step explanation:

Vol. Of cone= 1/3pi r²h

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64× 5×3.14

= 320×314/100

=16×314=5024 cm³

Hope this helps:) Goodluck!

7 0
2 years ago
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How many math books and English books did Nicole purchase?
Ksju [112]
Create a system if equations to solve this.

First equation:
25m + 24e = 220

Second equation:
m + e = 9

Then you must solve the second equation for a variable.

Change m + e = 9 to e = 9 - m.

Then substitute (9 - m) for e in the first equation.

So 25m +24e = 220 becomes 25m + 24(9 - m) = 220.

Now you can solve the first equation because the only variable in it is m.

25m + 24(9 - m) = 220 (Original equation)
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m = 4 (Simplify)

Now plug in 4 for m in the second equation.

m + e = 9 (Original equation)
(4) + e = 9 (Substitute)
e = 5 (Simplify)

m represents Math Books and e represents English Books, so Nicole purchased 4 Math Books and 5 English Books.
6 0
3 years ago
Which expression is equivalent to 5(w+4) when w=9
erica [24]

Answer: Should be 5(9)+4

Step-by-step explanation:

8 0
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weqwewe [10]
Using the formula V = bh

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An equivalent expression for sin x is?<br><br>(please answer with steps)​
Anestetic [448]

Answer:

b

Step-by-step explanation:

Using the trigonometric identity

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