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

Question

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 :

Otras preguntas

The main difference between bacterial chromosomes and eukaryotic ones is that eukaryotes have linear chromosomes. How does the shape of the chromosome affect th

BESIDES THE HIGH ACIDITY, why are the contents of gastric juice so hostile to the exposed duodenal wall?

Subtracting 8.263 from 13.48, you obtain A. 5.783. B. 21.743. C. 5.217. D. 6.815.

i need help on saxon math algebra 1 lessons 36-40 can you please help me ,

PQR is shown. What are the missing side lengths in PQR? Please try to show your work

How much allure did such radical movements as communism and socialism have for Americans in the 1930s? What was the "Popular Front" approach and why did it end?

слрпдащопрожадалаоааллалалалалалала

What are the next four multiples of 5/10

What gave rise to the nativist movement? What were its political goals?

SchwarzschildRadius SchwarzschildRadius · Answer 1 · 2015-03-25T19:59:54+01:00

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