John has $2 in nickels and dimes in his drawer. the number of nickels is three times the number of dimes. how many of each are in the drawer?

The number of nickles in drawer is 20  and

The number of dimes in drawer is 10  

Step-by-step explanation:

Given as :

Total money in nickels and dimes = $ 2

Let The number of nickels = n

And The number of dimes = d

According to question

The number of nickels is three times number of dimes

I.e  n = 3 times d

Or ,  n = 3 d

∵  n + d = $ 2

and 20 nickles = 1 dollar

      10 dimes = 1 dollar

So, 20 nickles + 10 dimes = $ 1 + $ 1

or, 20 nickles + 10 dimes = $ 2

So, number of nickles is 20, and number of dimes is 10

Hence The number of nickles in drawer is 20  and

The number of dimes in drawer is 10   answer

quit

step-by-step explanation:

the height of the surface increases from the center out to the sides of the road.

step-by-step explanation:

as we move out we move away from the x-axis.

and as mentioned in the problem statement that height of a road increases when we move away from the center x.

hence proved that 3rd option

the height of the surface increases from the center out to the sides of the road.

is the correct option.