Answer: 30/45=6/9
30 6
___=___
45 a
cross multiply
30a=270
divide both sides by 30
a=9
5.Answer=A
2 1/5=2 2/10
2 2/10+1 1/10=3 3/10
______________
Answer=-1
3/-5+(-4/10)=
3/-5-0.4
-0.6-0.4=-1
6a3-5b2+2c2-3a2bc if a=5 b=2c=-1
First, let's find how much she will need to pay without tax. She is buying 2 shirts at $21 each (which costs $42 in total) and a pair of pants for $23.50, meaning that her subtotal is:
Now, let's apply a sales tax of 8.5%. To do this, we are going to need to find the balance of the tax, which we can then add to the subtotal. The balance of the tax is:
Adding this to the subtotal, we get:
Now, we know the total cost she is going to have to pay is $71.07. Thus, using a $100 bill, she is going to have to pay:
She is going to have to pay $28.93.
1 minute of P.E. usually burns 11 Kcals.
Answer:
dy/dx = d/dx (sin3x.cos2x)
dy/dx = cos3x . 3 . -sin2x . 2 (Using chain rule)
dy/dx = -6cos3xsin2x