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
Andreyy89
3 years ago
13

Identify a possible first step using the elimination method to solve the system and then find the solution to the system. 3x - 5

y = -2 2x + y = 3 A) Multiply first equation by -3 and second equation by 2, solution (1, 1). B) Multiply first equation by -2 and second equation by 3, solution (1, 1). Eliminate C) Multiply first equation by -3 and second equation by 2, solution (1, -1). D) Multiply first equation by -2 and second equation by 3, solution (1, -1)
Mathematics
1 answer:
irina1246 [14]3 years ago
5 0

ans is b...multiply eqn 1 by -2 and eqn 2 by 3

=》 -6x + 10y = 4...eqn 3

=》 6x + 3y = 9...eqn 4

add eqn 3 and 4...

=》13y = 13

=》y =1 and x = 1

You might be interested in
Please help!<br><br> combine like terms to create an equip expression<br><br> 0.4m - 0.8 - 0.8m
soldi70 [24.7K]

Answer:

1.2-0.8

Step-by-step explanation:

Add 0.4 and 0.8

4 0
2 years ago
Can anyone tell me if this is right
Rashid [163]

Answer:

yes it is correct

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Can someone help me find the perimeter and area of the shape or figure?
MA_775_DIABLO [31]

0.7 + 0.4 + 0.6 + 0.4 = 2.1 is the perimeter

0.7 x 0.4 = 0.28

0.6 x 0.4 = 0.24

0.28 + 0.24 = 0.52 is the area

Hope that helped!

6 0
3 years ago
On Tuesday, Donovan earned $11 for 2 hours of babysitting. On Saturday, he babysat for the same family and earned $38.50. How ma
Lina20 [59]
$11=2 hrs

2hrs=$11
+2(4hrs)=$22
+2(6hrs)=$33 hrs


so 6 hrs or 7 hours and some
minutes left
4 0
3 years ago
Solve for the following equation step by step and justify your steps when using an exponential property.
mel-nik [20]

x = \frac{5}{7}

using the ' laws of exponents '

• a^{m} × a^{n} = a^{( m + n )}

•  a^{m} ÷ a^{n} = a^{(m - n)}

• (a^{m})^n = a^{mn}

7^{2} × 7^{3} = 7^{5} ÷ 7^{3x} = 7^{5 - 3x}

7^{4x} = 7^{5 - 3x}

equating the exponents since bases on both sides are 7

4x = 5 - 3x

7x = 5 ⇒ x =\frac{5}{7}




4 0
3 years ago
Other questions:
  • 5-2. 1/6=<br>please respondela
    11·1 answer
  • Write the answer in the form of fraction decimal and percentage
    7·1 answer
  • 1.5x + 6x – 3.4 = 11.6
    12·1 answer
  • Elena has chosen carpet that cost 4.55 Per square foot for a regular floor that measures 12 1/2‘ x 14 1/2 how many square feet o
    5·1 answer
  • Determine the factors of x^2 - 7x - 10.
    5·2 answers
  • What type of graph represents the solutions of the equation y = 2x + 4
    13·1 answer
  • Mrs. Murphy takes her two cats to the veterinarian in a pet carrier that weighs
    13·1 answer
  • Which expression is equivalent to<br> 6 OF<br> 5y3<br> (5)<br> Ο Ο<br> 125y3<br> 125y5
    9·1 answer
  • Two–thirds of the children in the fourth–grade class are girls. If there are 18 girls, what is the total number of children in t
    5·2 answers
  • I need help with D, i’m confused on it.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!