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
Taya2010 [7]
3 years ago
9

Solve the system of equations using substitution or elimination by addition.

Mathematics
2 answers:
Anvisha [2.4K]3 years ago
8 0

Answer: A. The unique solution to the system is (0.1,0.4)

Step-by-step explanation:

 You can follow these steps to solve the system of equation by the Elimination Method:

- Multiply the first equation by -0.7, then add both equations and solve for "y":

\left \{ {-0.7(x + y) =-0.7(0.5)} \atop {0.7x + 0.6y = 0.31}} \right.\\\\\left \{ {-0.7x-0.7y =-0.35} \atop {0.7x + 0.6y = 0.31}} \right.\\............................\\-0.1y=-0.04\\\\y=0.4

- Substitute the value of "y" into any original equation to find the value of "x". Then:

x + (0.4) = 0.5\\\\x=0.5-0.4\\\\x=0.1

 Therefore, the unique solution to the system is (0.1,0.4)

irakobra [83]3 years ago
4 0

Answer:

a. (0.1,0.4)

Step-by-step explanation:

You might be interested in
What is the smallest integer greater than square root of 148 ?
Yanka [14]
The answer is 11 im pretty sure<span />
7 0
4 years ago
Read 2 more answers
WILL REWARD BRAINLIEST!:)
Anvisha [2.4K]
The area would be 16.
6 0
3 years ago
If you wanted to make 8 cups of juice and you used the first recipe, how much water and juice mix would you need?
creativ13 [48]

Answer:

80 cups

Step-by-step explanation:

6 0
3 years ago
100 POINTS!!
LiRa [457]
We know: The total number of tickets is 35. Another way of saying this is the number of adults plus the number of children equals 35. i.e.:

Adults+Children=35

Using the symbols provided we can write this is as:

a+c=35


We also know: The total money collected is $75. We know that  $6 was collected for every adult or 6a and $1 for every child or 1c. i.e.:

(SixDollars \times Adults)+(OneDollar \ times Children)= $70

Using the symbols provided and adding it all up we can write this is as:

6a+1c=70

Equation 1: a+c=35
Equation 2: 6a+c=70
5 0
3 years ago
Read 2 more answers
PLEASE HELP IM DESPERATE <br><br> If a1=9 and an=- 3an-1 – 5 then find the value of a5.
melomori [17]

Answer:

A5 is approximately 5.8 by 8.3 inches in size, and it's the closest in size to the U.S. paper size called the “half-letter” size, at 5.5 by 8.5 inches. But here's how all the A-series sizes break down: A0 paper is 841 by 1189 millimeters, approximately 33.1 by 46.8 inches.A5 measures 148 × 210 millimeters or 5.83 × 8.27 inches. In PostScript, its dimensions are rounded off to 420 × 595 points.A5148 x 210mm5.8 x 8.3 inch

3 0
3 years ago
Read 2 more answers
Other questions:
  • The Australian dragonfly can travel 18 miles in 30 minutes how far can the dragonfly travel in 1 minute
    13·2 answers
  • Write a real world problem using mixed numbers whose sum is 1 3/5
    12·1 answer
  • Multiply and simplify. 3xy4z2⋅5x2yx
    5·2 answers
  • Is 8(a+2)=5a+16+3a no solution, one solution, or many solution
    8·1 answer
  • A doctor collected data to determine the association between age of an infant and its weight. She modeled the
    14·1 answer
  • 54 is 45% of _______________. fill in the blank
    9·1 answer
  • Lets talk and have fun brrrrrrrrr
    12·2 answers
  • Analyze the diagram below and complete the instructions that follow. Find a, b, and c.
    15·1 answer
  • Help me with this please
    10·1 answer
  • Ǫᴜᴇsᴛɪᴏɴ ɪs ʜᴇʀᴇ <br><br><br>ᴘʟs ʜᴇʟᴘ ᴍᴇ!!​
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!