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The Rhythm Record Shop orders sixty-minute cassette tapes at $1.49 and CDs at $4.98. A total of 451
items were ordered and the total amount of the invoice is $1240.86. How many of each item were
ordered?

Respuesta :

The number of sixty-minute cassette tapes ordered is 288 and the number of CDs ordered is 163.

What are the linear equations that represent this question?

1.49a + 4.98b = $1240.86 equation 1

a + b = 451  equation 2

Where:

  • a = number of sixty-minute cassette tapes ordered
  • b = number of CDs ordered

How many CDs were ordered?

Multiply equation 2 by 1,49

1.49a + 1.49b = 671.99 equation 3

Subtract equation 3 from equation 1

568.87 = 3.49b

Divide both sides of the equation by 3.49

568.87 / 3.49

b = 163

How many sixty-minute cassette tapes were ordered ?

Subract 163 deom 451

451- 163 = 288

To learn more about simultaneous equations, please check: https://brainly.com/question/25875552

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