(total cost) = (cost to tend a boat) + (price per person)*(number of people)

(total cost) = C
(cost to tend a boat) = 10
(price per person) = 2
(number of people) = p

C = 10 + 2p
or
C = 2p + 10

3 0

3 years ago

Eric has 183 coins all of them are nickels and dimes. If the total value of the coins is 14.45, how many of each denomination co

FromTheMoon [43]

Answer:

77 nickels

106 dimes

Step-by-step explanation:

Let there be n nickes and d dimes

Since there are 183 coins, we can write:

n + d = 183

Also, the value of nickel is 0.05 and dime is 0.1, total value is 14.45, so we can write:

0.05n + 0.1d = 14.45

Solving 1st equation for n, we have:

n = 183 - d

Putting this into 2nd equation and solving for d:

$0.05n + 0.1d = 14.45\\0.05(183-d) + 0.1d = 14.45\\9.15-0.05d+0.1d=14.45\\0.05d=5.3\\d=106$

There are 106 dimes

Since, n = 183 - d

n = 183 - 106

n = 77

There are 77 nickels

4 0

3 years ago

Select the irrational numbers. A. 39 B. 72 C. V111 D. 122 E. 144

stich3 [128]

The only irrational number there is C

7 0

3 years ago