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
Jasmine is baking and selling cupcakes for $15 per dozen.She would like to make more than $120 in cupcake sales. Which number li
pishuonlain [190]

Answer:

Step-by-step explanation:

Jasmine is baking and selling cupcakes for $15 per dozen.

Let x be the number of dozens of cupcake made by Jasmine.

Her total sales= Sales Per Dozen X Number of Dozens of cupcake sold

= $15 X x = $15x

Since she would like to make more than $120 in cupcake sales.

It means her total sales must be greater than $120.

15x>120

x>120/15

x>8

The number line attached represents the solutions to the situation.

All integers to the right of 8 (excluding 8) satisfies the situation.

3 0
3 years ago
Angle x and angle y are complementary. Angle x is supplementary to a 128 degrees angel. What are the measures of angle x and y
Irina18 [472]

Answer: x is 52 and y is 38.

Step-by-step explanation:

x+128=180

x=52

52+y=90

y=38

5 0
3 years ago
Read 2 more answers
Type your answer in decimal form. Do not round. Millimeters=9.2 centimeters
Alinara [238K]

Answer: 92


Step-by-step explanation:


8 0
3 years ago
Read 2 more answers
What is (x,y) (x-4, y+2)? A. rotation B. reflection C. Transition D. Dilation
Novosadov [1.4K]

Answer:

im pretty sure it’s a sorry if i’m wrong

Step-by-step explanation:

5 0
3 years ago
Samantha wants to use her savings of 1150 to buy shirts and watches for her family. The total price of the shirt she bought was
ioda

<u>Answer-</u>

<em>The maximum number of watches that Samantha come by with her savings is </em><em>10</em><em>.</em>

<u>Solution-</u>

The amount of money Samantha has in her savings account = $1150

She wants to buy shirts and watches.

Cost of one shirt = $84

Cost of each watch = $99

Let she can buy maximum of x watches, so the net price of the watches is $99x.

Then,

\Rightarrow 99x+84=1150\\\\\Rightarrow 99x=1150-84\\\\\Rightarrow 99x=1066\\\\\Rightarrow x=\dfrac{1066}{99}\\\\\Rightarrow x=10.77

As the number of watches can not be in fraction, so at most she can buy 10 watches.

8 0
3 years ago
Other questions:
  • If m∠1= (7x –19)°, and m∠2 = (x + 5)°, find m∠2.
    14·1 answer
  • Which graph represents the solution for the open sentence 3|p| – 5 &lt; 7.
    5·2 answers
  • I really need help...
    8·2 answers
  • What can integers and whole numbers be classified as what
    11·1 answer
  • Please answer the question from the attachment.
    14·1 answer
  • Solve for x. 4x-4&lt;8 AND 9x+5&gt;23
    9·2 answers
  • 5. Which of the following shows 12/28 written in prime factored form to help in reducing the fraction to simplest form?
    7·1 answer
  • 4.
    8·1 answer
  • ABCD shows the original location of a shape. FGHI shows the shape reflected across a
    14·1 answer
  • The initial and terminal points of a vector are given. Write the vector as a linear combination of the standard unit vectors i a
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!