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
navik [9.2K]
3 years ago
12

2x+2y=16 , 6x+4y=38 what is the value of x

Mathematics
1 answer:
ra1l [238]3 years ago
5 0
1st equation—x, substitute y: 
<span>3x + 2(x + 3) = 16 </span>
<span>3x + 2x + 6 = 16 </span>
<span>5x = 10 </span>
<span>x = 2 </span>

<span>y in the above equation: </span>
<span>= 2 + 3 </span>
<span>= 5 </span>

<span>Answer: x = 2, y = 5</span>
You might be interested in
Carlos evaluated 20 - (2x6) + 8 ÷4 and got 29. Is his answer correct? If not, explain what Carlos did wrong and find the correct
natima [27]
20-(2x6) +8 divided by 4
2 times 6 = 12
8/4 = 2
20-12+2
It would be 14 not 29

He used PEMDAS in the wrong order
8 0
4 years ago
Read 2 more answers
Write the fraction 5 2/5 as a percent.
bixtya [17]

5 2/5 = 5.4 x 100 = 540%

Since 2/5 = .4

7 0
4 years ago
The Miller family visited Mama's kitchen and ordered 4 hamburgers and 3 medium fries and paid $17.35. James ordered a medium dri
Lady_Fox [76]
x-the\ cost\ of\ a\ hamburger\\y-the\ cost\ of\ a\ medium\ friest\\z-the\ cost\ of\ a\ medium\ drink\\\\ \left\{\begin{array}{ccc}4x+3y=17.35\\x+y+z=6.09&\to z=6.09-x-y\\2x+y+z=9.34\end{array}\right\\ \left\{\begin{array}{ccc}4x+3y=17.35\\2x+y+6.09-x-y=9.34\end{array}\right\\\left\{\begin{array}{ccc}4x+3y=17.35\\x=9.34-6.09\end{array}\right\\\left\{\begin{array}{ccc}4x+3y=17.35\\x=3.25\end{array}\right

\left\{\begin{array}{ccc}4\cdot11.26+3y=17.35\\x=3.25\end{array}\right\\\left\{\begin{array}{ccc}4\cdot3.25+3y=17.35\\x=3.25\end{array}\right\\\left\{\begin{array}{ccc}13+3y=17.35\\x=3.25\end{array}\right\\\left\{\begin{array}{ccc}3y=17.35-13\\x=3.25\end{array}\right\\\left\{\begin{array}{ccc}3y=4.35\\x=3.25\end{array}\right\\\left\{\begin{array}{ccc}y=1.45\\x=3.25\end{array}\right\\

\left\{\begin{array}{ccc}x=3.25\\y=1.45\\z=6.09-3.25-1.45\end{array}\right\\\left\{\begin{array}{ccc}x=3.25\\y=1.45\\z=1.39\end{array}\right\\\\\\Answer:\\Hamburger-\$3.25\\Medium\ fries-\$1.45\\Medium\ drink:\$1.39
7 0
3 years ago
WILL MARK BRAINLIEST PLZ HELP
Alik [6]

g(x) = x^3 − x^2 − 4x + 4
g(x) = x^3 + 2x^2 − 25x − 50
g(x) = 2x^3 + 14x^2 − 2x − 14
7 0
3 years ago
What is the fraction of 3\4 of 28
pentagon [3]
If you are trying to find 3/4 of 28, multiply 3/4 (or 0.75( by 28), which equals 21.

3/4 • 28 = 21
3 0
4 years ago
Other questions:
  • Josh noticed, g, gallon of rain water collecting in a tank for, t, hours
    13·1 answer
  • -. In Ms. Nice's class of 9 students, the average
    8·1 answer
  • Simplify<br><br> 5 - 10 | 0.8- 3/5
    6·1 answer
  • Find the solution to the following system of linear equations. y = −9x + 20 y = −9x +16
    12·1 answer
  • 1. Suppose you invest $1000 at an annual interest rate of 4% compounded continuously. How much will you
    10·1 answer
  • What is the answer plz help homework
    7·2 answers
  • Find the area of a circle with a diameter of 56 millimeters. Round your answer to the nearest hundredth.
    12·1 answer
  • Please help. Please have it right please. You don’t have to explain it
    14·1 answer
  • Plz help i beg uu. Will give branliest
    6·2 answers
  • The volume of a right cone is 264 π units. if its circumference measures 12 π units, find its height
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!