1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
GaryK [48]
3 years ago
7

consider the following system of equations 2x+3y=45 x+y=10 what is the x value of the solution for this system

Mathematics
2 answers:
mixer [17]3 years ago
7 0
X + y = 10.....y = 10 - x....so we sub in 10 - x for y in the other equation

2x + 3y = 45
2x + 3(10 - x) = 45
2x + 30 - 3x = 45
2x - 3x = 45 - 30
-x = 15
x = -15 <===
sesenic [268]3 years ago
4 0

Answer:

value of x = -15

Step-by-step explanation:

Given the system of equation:

2x+3y = 45              .....[1]

x+y = 10                  ......[2]

Multiply equation [2] with 3 we have;

3x+3y =30          ......[3]

Subtract equation [3] from [1] to eliminate y and solve for x;

2x+3y-3x-3y = 45-30

Combine like terms;

-x =15

Divide both side by -1 we have;

x = -15

Therefore, the value of x of the solution for the given system is, -15

You might be interested in
Anyone know what the answer would be?
Maslowich
The answer to the question is D<span />
4 0
3 years ago
When x represents whole numbers less than 200, the function f(x) = 2x - 20 represents the profit earned from selling x carnation
solmaris [256]

Answer:

260

Step-by-step explanation:

When x represents whole numbers less than 200, the function  

f(x) = 2x - 20 .......... (1)

represents the profit earned from selling x carnations for a school fund-raiser.

Therefore, the profit earned from selling 140 carnations for the school fund-raiser will be given by the equation (1) as

f(140) = 2(140) - 20 = 280 - 20 = 260.

Therefore, 260 is the value of f(140). (Answer)

8 0
3 years ago
What is the name of this line?
Murrr4er [49]

Answer:

the answer is A

Hope This Helps!!!

4 0
2 years ago
Read 2 more answers
A phone number contains 7 digits. How many different numbers can be made using the digits 0–9 if the first digit is not 0 and al
IRISSAK [1]

I do believe c but idk

6 0
3 years ago
Read 2 more answers
Can someone check my answers plz
IRINA_888 [86]

Answer:

its right

can i have brainliest please

6 0
3 years ago
Read 2 more answers
Other questions:
  • If the mean of the data set is 41 attendees find the number of attendees at Harry’s hoedown
    7·1 answer
  • Maggie has a bag of coins (8 nickels, 6 quarters, 12 dimes, 20 pennies). If she picks a coin at random, what is the probability
    9·1 answer
  • Find the exact sum or difrence. 7/15 + 9/15 + 4/15
    10·1 answer
  • Three students took a math test.
    8·1 answer
  • Alejandra desea realizar sus ejercicios cardiovasculares, para ello corre alrededor de una piscina de forma circular, ¿Cuánto re
    7·1 answer
  • ) Complete the sentence.<br> +) Omar can buy ?<br> pairs of socks.
    8·2 answers
  • -6 - (-8) x 5 ÷ (-10)
    9·2 answers
  • mr. knox's rent during the past year amounted to $2700 per year. His rent was 20% of his income. find his income fo the last yea
    6·2 answers
  • A company is started by four friends. The company was Erica’s idea, so she wants to fill 70% of the orders. Jen, Heather, and To
    11·2 answers
  • A 500 N force is applied to a 25 m/s2 object. The mass of the object is
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!