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concrete building blocks weigh 28 pounds each. Using b for the number of concrete blocks and w for the weight, write two equations that relate to the two variables. one equation should begin with w = and the other should begin with b=.

Respuesta :

Answer:

The two equations are: [tex]w=28b[/tex] and [tex]b=1/28w[/tex]

Step-by-step explanation:

Concrete building blocks weigh 28 pounds each.

Let b be the number of concrete blocks and w be the weight of blocks.

So, the two equations that relate to the two variables are:

[tex]w=28b[/tex] and [tex]b=1/28w[/tex]

fichoh

The equations which relates b and w and 28 are as follows :

  • w = 28b
  • [tex] b = \frac{w}{28}[/tex]

Using the parameters :

  • Weight of per concrete block = 28 pounds
  • b = number of concrete blocks
  • w = weight of concrete blocks

The total weight, b of concrete blocks can be related with the equation :

Weight of each concrete block × number of concrete blocks

w = 28 × b - - - - (1)

w = 28b

We could then make b, the subject of the formula :

From (1)

Divide both sides of the equation by 28 to isolate b

[tex] b = \frac{w}{28}[/tex]

Therefore, the relationship between b and w and 28 are given in the equations above.

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