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Nutka1998 [239]
3 years ago
11

On a certain day, the temperature changed at a rate of -2O per hour. How long did it take for the change in temperature to be -1

4O?
Mathematics
1 answer:
topjm [15]3 years ago
7 0

Answer:

it took 7 hours

Step-by-step explanation:

You might be interested in
8. Albert's father is 24 years older than Albert is. In 8 years, his father will be twice as old as Albert. How old is Albert no
Hunter-Best [27]
Albert´s ftather age=x
Albert age=y

We suggest this system of equations:
y=x-24
x+8=2(y+8)

we solve this system of equation by substitution method.

x+8=2[(x-24)+8]
x+8=2(x-16)
x+8=2x-32
x-2x=-32-8
-x=-40
x=40

y=x-24
y=40-24
y=16

Answer: Albert´s father is 40 years old, and Albert is 16 years old.


4 0
3 years ago
a number is multiplied by 8 and that product is added to 2. The sum is equal to the product of 2 and 25 . Find the number
pickupchik [31]

Answer:

6

Step-by-step explanation:

So we have a number (let's call it x) and it was multiplied by 8 and added by 2. Therefore:

8x+2

And we are told that the sum is equal to the product of 2 and 25 (or 50). Thus:

8x+2=50

To find the number, we just need to find x. Thus, subtract 2 from both sides:

8x=48

Divide both sides by 8:

x=6

And we're done!

So, our original number was 6.

8 0
3 years ago
Put 0.01666666666 into a fraction.
ch4aika [34]
For the answer to the question above asking to p<span>ut 0.01666666666 into a fraction.
The answer to your question</span> is 1/6 and in reverse when
1 divided by 6 =.16666666

I hope my answer helped you. Feel free to ask more questions. Have a nice day!
4 0
3 years ago
(1,1),(-1,0)<br> 2+y=3<br> X-2y=3
Gekata [30.6K]
<span>Which phrase includes “being equal to 50”?</span>
7 0
3 years ago
The area of a square garden is 128m sqared.how long is the diagonal
weqwewe [10]

The area of a square is  (side)².
If the area is  128m², then the side is  (√128) meters. (That's 8√2.)

The diagonal is the hypotenuse of the right triangle you get
if you slice the square in half along the diagonal.  Its length is
given in the words of Old Pythagoras:

               c² = a² + b²

'a' and 'b' are sides of the square, so

             c² = (√128)² + (√128)²

                 =    2 (√128)²

              c  =  √ (2 x 128)  =  √256  =  16 meters . 

4 0
4 years ago
Read 2 more answers
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