8x + 3y = 10 -2x - 10y =16
2 answers:
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Answer:
6x+7y=14
Step-by-step explanation:
this may be wrong
but i tried
A rational number can be expressed in the form
where a and b are integers
Otherwise irrational
Note that ,
,
are all irrational
=
→ rational
→ irrational
→ irrational
=
→ rational
→ irrational
Answer:
-17 degrees
Step-by-step explanation:
Given that:
Initial temperature = 2 degrees
Final temperature = -15 degrees
To Determine:
The change in temperature.
Solution:
First of all, let us have a look at the method for calculating the change in any quantity.
Let the initial quantity =
Let the final quantity =
Change in quantity = Final quantity - Initial quantity =
Here, we are given the quantity as temperature.
where degrees and
degrees
Therefore, the change in temperature = -15 - 2 = <em>degrees</em>