Question

Mary Lou has 2 more nickels than pennies, and she has 30 coins all together. Use x for the number of pennies
2(x + 2) = 30
x + (x + 2) = 30
2x + 30 = 5
x + 2 = 30

Answer 1

Answer:She has x pennies.

So she has x+2 nickles.

Step-by-step explanation:

Answer 2

Answer:

x + (x + 2) = 30

Step-by-step explanation:

Let marry has x pennies.

Then number of nickels = Number of pennies + 2

Nickles = x + 2

Total coins = 30

Number of nickles + number of pennies = 30

x + 2 + x = 30

x + (x + 2) = 30

Hence answer b is correct.