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
coldgirl [10]
3 years ago
12

Please help me with this. Use the combination method of substitution to solve. Please show and explain work. Thanks.

Mathematics
1 answer:
Artemon [7]3 years ago
6 0

Answer:

x = 25.35 (or 2129/84) and y = 4334.04 (or 121353/28)

Step-by-step explanation:

The given equations are set up and ready to go with substitution. Simply just plug in the first equation to the second equation as both are equal to y.

Step 1: Replace y in <em>y = 87x + 2129 </em>with <em>171x</em>

171x = 87x + 2129

Step 2: Subtract 87 x on both sides

84x = 2129

Step 3: Divide both sides by 84 to get x

x = 2129/84 or 25.35 (rounded)

To get y, simply plug in x into one of the 2 original equations. In this case, I will use the first equation:

y = 171 (25.35)

y = 121353/28 or 4334.04 (rounded)

You can check your work by plugging both solutions into the calculator and see if they equal each other. The values for these answers are solely based on the equations, so if you write the <em>equations </em>wrong themselves, then that means you have the values wrong as well.

You might be interested in
Help pls ! <br> i’ll mark brainliest to whoever answers it right first.<br> thanks !
Bess [88]
About 90ft

step-by-step explanation: 1/2 (a+b) x h is area of trapezoid. So that would be 40
then area of circle is pi x radius squared. So that is 50.24 roughly.

so 50+40=90

and yeah

hope this helped :))
7 0
3 years ago
MARK AS BRAINLIEST!
Shkiper50 [21]

You would need to multiply the monthly cost, $14, by the number of months and then that would be added to the cost to join, $25

For 6 months it would cost 14 x 6 = 84 + 25 = $109

The answer would be C.

8 0
3 years ago
Read 2 more answers
Datguy323 is going to complain again. What's the variables for: <img src="https://tex.z-dn.net/?f=x%5E2%2By%5E2%3D29%5C%5Cx%2By%
Korolek [52]

Answer: :o I FINALLY MADE IT

(5, 2)

x = 5

y = 2

Step-by-step explanation:

First, I graphed both equations.  They meet at the points (5,2) and (2,5).  Because y < 5, the solution is (5, 2)

<em>Hope it helps <3</em>

8 0
2 years ago
Read 2 more answers
A designer is creating a rug for an oddly-shaped room. His design for the rug is shown below. If each blue square represents 1 s
likoan [24]

Answer:

btw we cant see the image sorry

Step-by-step explanation:

3 0
3 years ago
A doghouse is to be built in the shape of a right trapezoid, as shown below. What is the area of the doghouse?
nadya68 [22]

Answer:

66.5 square feet

Step-by-step explanation:

We have to find the area of the doghouse which is in the shape of right trapezoid . that is, Substitute the values, we get, Hence, Area of of the doghouse which is in the shape of right trapezoid is 66.5 square feet.

5 0
2 years ago
Other questions:
  • PLEASE HELP QUICK 20 POINTS AND BEST ANSWER
    14·1 answer
  • Did I do this right?
    12·1 answer
  • If a triangle has sides of 14,48, and 50 units respectively what type of triangle is it
    5·1 answer
  • Find value of x<br> (2x+7)=(3x-52)
    5·2 answers
  • I I’m confused.i don’t understand how to solve. Show work please so i can see how you solved it
    9·1 answer
  • HELP PLS 20 POINTS AND IF UR ANSWER IS RIGHT I GIVE THE BRAINLY CROWN
    8·2 answers
  • One side of a tabletop is 12x – 5 units long. Another side of the tabletop is 7x + 4 units long. If the tabletop is a square, wh
    6·1 answer
  • Need help asap will give brainly
    15·2 answers
  • What would be the solution to the inequality? x-20&lt;100
    15·2 answers
  • Sanjay sold 8kg of sugar at Rs 28 per kg and earned a profit of Rs 40 What was the cost price per kg
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!