jhon2345677 jhon2345677

02-11-2016
Mathematics

contestada

solve each system by substitution x+12y=68
x=8y-12

Respuesta :

PhantomRealm PhantomRealm

02-11-2016

substitute x=8y-12 into first equation
8y-12+12y=68
20y=68+12
20y=80
y=80/20
y=4

substitute y=4 in 2nd equ
x=8(4)-12
x=32-12
x=20

Answer Link

Otras preguntas

Name from least to greatest 12 liters, 9 quarts, 3 gallons.

Which was a key to writing and ratifying the U.S. Constitution? Please Help I really think its B A. willingness to compromise on all sides B. refusal to compr

Evaluate the expression, using the given value of the variable. 4 – 2x + 5x when x = 4 A. –24 B. –18 C. 16 D. 28

Which group of words is a sentence fragment? A. Wolves are wild animals. B. Wolves and dogs are close relatives. C. A wolf can run up to 40 miles a day. D. As a

how to round 43 to the nearest ten

where did salt get its name from

where did salt get its name from

I need an example of a ratio being a rate

A barista averages making 16 coffees per hour. At this rate, how many hours will it take until she's made 1,200 coffees?

Suppose that you are building a shed and need to pour concrete slab to support it you know this lab will be 15 feet wide 10 feet long and 6 inches deep concrete