Answer:
20
Step-by-step explanation:
Given that: $3.25 in dimes and nickels were distributed among 45 boys.
1 nickel = $0.05
1 dime = $0.10
Let number of coins of dimes be x and the number of coins of nickel be 45-x.
Hence,
0.10x + 0.05(45-x)=3.25
0.10x+2.25-0.05x=3.25
0.05x=3.25-2.25
0.05x=1
x= 1/0.05
x=20
45-x
45-20=25
Answer:
A
Step-by-step explanation:
subract the three on both sides to get 12. then multiple by -2. when multiplying or dividing by negatives you want to flip the sign
There's 2 types of intaglio printing etching and engraving what's the primary difference between the 2
A-the artist carves the design directly in etching while in engraving its done by using acid to cut into the plate
B - the artist carves the design directly in engraving while in etching its done by using cut into the plate
C-you can feel the raised edges of the ink on an itching but not in engraving
volume = 7*7*2 = 49*2=98
she needs to get 98 cubic feet of sand
We can calculate this using arc length formula.
The first step is to find the derivative of the given function.
Now we plug this back into original integral.
We solve this integral using substituition u=9x+1. This way we end up solving elementary integral.
A final solution is:
Finaly we get that arc lenght is: