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mrs Singh bought 9 folders 9 notebooks. The cost of each folder is $2.50 and the cost of each notebook is $4 write two equivalent expressions then find the answer

Respuesta :

Answer:

$58.50

Step-by-step explanation:

First, you write the 2 expressions.

9(2.50+4) = 9(2.50)+4; $58.50

2.50 + 4 = $6.50

$6.50*9 = $58.50

Hope this helps.

abidemiokin

He bought 3 folders and 2 notebooks

  • Let the cost of folder books be x
  • Let the cost of notebooks be y

We are told that mrs Singh bought 9 folders and 9 notebooks,

If the cost of each folder is $2.50 and the cost of each notebook is $4, then;

2.5x = 9 and 4y = 9

Get the value of x:

2.5x = 9

x = 9/2.5

x = 3.6

Get the value of y;

4y = 9

y = 9/4

y = 2.25

Hence he bought 3 folders and 2 notebooks

Learn more on eqautions here: https://brainly.com/question/2972832

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