7. The coach has $250 to spend on volleyball equipment. She buys 4 volleyball nets for $28 each. Volleyballs cost $7 each.

Question

7. The coach has $250 to spend on volleyball equipment.
She buys 4 volleyball nets for $28 each. Volleyballs cost $7 each.
How many volleyballs can she buy? Explain how you solve.
Use one or more equations and bar diagrams in your explanation
Tell what your variables represent. 4.AR.1.1.4.AR ??

diemkieu · Answer

The  amount of volleyballs  that the coach can  buy  is given as follows:  19 volleyballs.    How to obtain the amount of volleyballs that she can buy?    The total spending can be modeled by a  linear function  in slope-intercept format, as follows:  y = mx + b.    The  coefficients  of the linear function are given as follows:   m is the slope, representing the cost per ball.    b is the intercept, representing the extra costs, along with the ball.     She buys 4 volleyball nets for $28 each, hence the  intercept  is given as follows:  b = 4 x 28 = 112.    Volleyballs cost $7 each, hence the  slope  is given as follows:  m = 7.    Then the  cost function  is defined as follows:  C(x) = 7x + 112.    The coach has  $250 to spend  on volleyball equipment, hence:  C(x) = 250.    Thus the  amount  of volleyballs that can be purchased is obtained as follows:  7x + 112 = 250  7x = 138  x = 138/7  x = 19.7.    The amount is  rounded down , as there would not be enough money remaining for the 20th ball.    More can be learned about  linear functions  at https://brainly.com/question/24808124  #SPJ1

How to obtain the amount of volleyballs that she can buy?

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