jenniferdiaz2005
jenniferdiaz2005
12-06-2020
Mathematics
contestada
2x + 3y = 1240
x = 2y - 10
Respuesta :
unicorn3125
unicorn3125
05-08-2020
Answer:
x = 350, y = 180
Step-by-step explanation:
2x + 3y = 1240
and
x = 2y - 10
so:
2(2y - 10) + 3y = 1240
4y - 20 + 3y = 1240
+20 +20
7y = 1260
÷7 ÷7
y = 180
x = 2•180 - 10 = 360 - 10 = 350
Answer Link
VER TODAS LAS RESPUESTAS ( 23+ )
Otras preguntas
Which statements are true? Check all that apply. A number line from 0 to 1. There are 10 unnumbered points between 0 and 1. There is a circle is on the third, s
Who was the role of scribes in Egypt? A. Keep government records B. Direct which crops to plant and harvest C. Command military campaigns D. Preside over Egypti
You are the financial manager for a recreation center that has signed an option to purchase new elliptical machines for $22,000 in two years. If you have an inv
Packard Corporation transferred its 100 percent interest to State Company as part of a complete liquidation of the company. In the exchange, Packard received la
DNA damage checkpoints are crucial for preventing cell proliferation when DNA damage has occurred. The role of DNA checkpoint proteins in the cell cycle is clos
State whether the decay is linear or exponential, and answer the associated question. The value of a car is decreasing by 9% per year. If the car is worth $1
An empty beaker is weighed and found to weigh 23.1 g. Some potassium chloride is then added to the beaker and weighed again. The second weight is 24.862 g. What
The rate of absorption concerns alcohol ... A. leaving the body. B. entering the body. C. being broken down in the body.
Beth's parents measure her height every six months and marked it in pencil on the wall in her bedroom closet. The last 3 measurements are 58.35 inches, 58.35 in
5 Make negative sentences (x) or questions (?) using the PAST TENSE:she / like (x) the film ______________________________I / use / (x) the school computer yest
