Answer:
13
Step-by-step explanation:
180-167= 13
× = 13 degrees
<span>Multiply equation(2) with 4 so that coefficient of become same in both the equations(You can make coefficient of y same and can follow the following procedure.)
</span><span>* Subtract (3) from (1)
* </span>Divide both sides by -19
*Subtract 21 from both sides.
*Divide both sides by 4
so the solution is x= 3 and y= -7
Hope I helped you :)
2.40 before a 30% discount is 0.72
The overall temperature would be 3.6°F as this is how much it was changed by
Answer=3.6°F