251.50 divided by 7.85 is 32 so she worked 32 hours.
C=2πr=π/2
2πr=π/2
4πr=π
r=π/4π=1/4
A=πr^2=(1/4)^2*π=1/16*π
Answer Using the method of alligation. 40.0= 20/(10/20) qts of 50% solution to add to your 20 qts of 20% solution. 60.0= (20+40.0) qts of the final 40% solution.
Answer:
Step-by-step explanation:
the item costs $ 3
sales tax is 4.4%
how much is the tax....
the tax can be calculated by multiplying the item cost by the percent sales tax ( in decimal form)
turn ur percent to a decimal
4.4% = 0.044
0.044 * 3 = 0.132 rounds to 0.13 <=== sales tax
