Question

Mary Lou has 2 more nickels then pennies and she has 30 coins all together select the equation that most accurately depicts the word problem

A. 2(x+2)=30

B. X+(x+2)=30

C. 2x+30=5

D. X+2=30

Answer 1

x + (x+2) = 30

Step-by-step explanation:

14 pennies and 16 nickels

Answer 2

`x+x+2=30`

Explanation:

Let the pennies be represented by = x

Let nickels be represented by = y

Mary Lou has 2 more nickels then pennies.

We get
`y=x+2`

Also given that she has 30 coins all together.

`x+y=30`

Substituting y here, we get the requires equation as:

`x+x+2=30`

Now, solving this we will get the value of x.

`2x+2=30`

`2x=28`

x = 14

And
`y=30-14=16`

So, there are 14 pennies and 16 nickels.