Rachel buys some scarves that cost $10 each and 2 purses that cost $16 each. The cost of Rachel's to

Discussion in 'Calculator Requests' started by math_celebrity, Oct 21, 2021.

Tags:
  1. math_celebrity

    math_celebrity Administrator Staff Member

    Rachel buys some scarves that cost $10 each and 2 purses that cost $16 each. The cost of Rachel's total purchase is $62. What equation can be used to find n, the number of scarves that Rebecca buys

    Scarves Cost + Purses Cost = Total Cost

    Calculate Scarves Cost
    Scarves cost = Cost per scarf * number of scarves
    Scarves cost = 10n

    Calculate Purses Cost
    Purses cost = Cost per purse * number of purses
    Purses cost = 16 * 2
    Purses cost = 32

    Total Cost = 62. Plug in our numbers and values to the Total Cost equation :
    10n + 32 = 62

    Solve for n in the equation 10n + 32 = 62

    Step 1: Group constants:
    We need to group our constants 32 and 62. To do that, we subtract 32 from both sides
    10n + 32 - 32 = 62 - 32

    Step 2: Cancel 32 on the left side:
    10n = 30

    Step 3: Divide each side of the equation by 10
    10n/10 = 30/10
    n = 3
     

Share This Page