<em>So</em><em> </em><em>the</em><em> </em><em>last</em><em> </em><em>number</em><em> </em><em>is</em><em> </em><em>3</em><em>4</em><em>.</em>
<em>Hope</em><em> </em><em>this</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em>.</em><em>.</em><em>.</em>
If there are 12 coins under the couch and every coin is either a nickel or a penny and together they are forming 32 cents then the equations which represent the problem will be x+y=12, 0.01x+0.05y=0.32. The correct option is B which is x+y=12, 0.01x+0.05y=0.32.
Given There are 12 coins and total money is 32 cents.
Let the number of pennies be x and the number of nickels be y.
According to question there are 12 coins so the first equation becomes:
x+y=12.
Then we have been told that together they amount to 32 cents.
We know that 1 penny is 1 cent coin and 1 nickel is 5 cent coin so the equation becomes :
1*x+5*x=32
x+5y=32
converting into dollar
0.01x+0.05y=0.32.
Hence the right equations showing the problem of nickel and pennies are x+y=12, 0.01x+0.05y=0.32.
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1. Decrease
2.Increase
3.Decrease
4.Increase
5.Decrease
6.Decrease
Answer:
Therefore 
, A=184
Step-by-step explanation:
Given function is
where T(t) is the temperature in °C and t is time in minute and A and k are constants.
She noticed that after 18 minutes the temperature of the pie is 138°C
Putting T(t) =138°C and t= 18 minutes
.....(1)
Again after 36 minutes it is 184°C
Putting T(t) =184°C and t= 36 minutes
.......(2)
Dividing (2) by (1)
Taking ln both sides
Putting the value k in equation (1)
⇒A= 184.
Therefore , A=184
