Question

Can someone please help me I need help righ now

Answer 1

a) d = 3x

b) n = 3x + 4

c) p = 3x

Explanation:

The first thing we have to do is understand and translate the word problem into a math equation.

Let's first start with using different variables for each denomination and later we will convert everything in terms of x which is the number of quarters.

Let
p = number of pennies
d = number of dimes
q = number of quarters

• The statement "twice as many dimes as quarters" translates to
  d = 3q (1)

• The statement "4 more nickels than dimes" translates to:
  n = d + 4 (2)
  
• The statement three times as many pennies as quarters becomes
  p = 3q (3)

Now wherever there is a q in the equation, substitute it with x

Equation (1) d = 3q ==> d = 3x (substituting x for q)
Equation (2) n = d + 4 ==> n = 3x + 4 (substituting 3x for d)
Equation (3) p = 3q ==> p = 3x (substituting x for q)

Answer 2

a.2x

b.2x+4

c.3x

Explanation:

We know that x represents the n umber of quarters. From this we can represent the number of dimes as twice, or 2x.

We can do the same as there are 4 more nickels than dimes and dimes is represented as 2x, we can get 2x+4

Same with the last as many quarters mneaning 3x.