veronicazeledon veronicazeledon

25-03-2015
Mathematics

contestada

While shopping for clothes, consuelo spend $3 less than twice what Brenda spent. Consuelo spent $81. How much did Brenda spend?

Respuesta :

SchwarzschildRadius SchwarzschildRadius

25-03-2015

So,

Let Consuelo's spendings be c and Brenda's spendings be b.

We have our first equation: c = 2b - 3

And our second equation: c = 81

Substitute 81 for c
81 = 2b - 3

Add 3 to both sides
84 = 2b

Divide both sides by 2
42 = b

Brenda spent $42.

Answer Link

Otras preguntas

What kind of molecule is an enzyme? Why are enzymes important in cell?

How is 'hearing' a motif in the novel A Separate Peace by John Knowles?

if 9^x-9^x-1=24, then find the value of (6x)^x

In what types of environments would you find protists?

container is 5 meters wide ,6meters long and 3 meters in depth what is the capacity in quarts

The scale of a square map indicates that each inch on the map corresponds to 5 miles. Write an expression that describes the area of land shown on the map. If t

if 9^x-9^x-1=24, then find the value of (6x)^x

How is 'hearing' a motif in the novel A Separate Peace by John Knowles?

Why is the kingdom Protista considered a catch all kingdom?

Write the answer to each problem in terms of the variable.1)chandler is y years old. What expression represent his age 4 yr ago? 11 yr from now?2)claire has y d