Ajar contains n nickels and d dimes. there are 26 coins in the jar, and the total value of the coins is $1.80. how many nickels and how many dimes are in the jar?

There are 16 nickels and 10 dimes in the jar.

Step-by-step explanation:

Given:

A jar contains n nickels and d dimes.

There are 26 coins in the jar.

The total value of the coins is $1.80.

Now, to find the number of nickels and dimes in the jar.

As given nickels =

And dimes =

So, the total number of coins:

........(1)

The value of a nickel = $0.05.

And the value of a dime = $0.10.

Now, the total value of the coins:

Putting the value of from equation (1) we get:

⇒

⇒

⇒

Subtracting both sides by 2.6 we get:

⇒

Dividing both sides by -0.05 we get:

⇒

So, the number of nickels = 16.

Now, to get the number of dimes we put the value of in equation (1):

⇒

⇒

Thus, the number of dimes = 10.

Therefore, there are 16 nickels and 10 dimes in the jar.

answer: i believe its b. if you sound out the sentences that sounds wrong.

not enough information

step-by-step explanation:

we cannot know this, because the other students could have handed out 10 flyers, or they could have handed out 100. one way, the mean would go up, and another way, the mean would go down.