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
Genrish500 [490]
3 years ago
13

What number would you multiply the second equation by in order to eliminate the x-terms when adding to the first equation? What

number would you multiply the first equation by in order to eliminate the y-terms when adding to the second equation?
Mathematics
2 answers:
Alisiya [41]3 years ago
9 0

Answer:

3 and 2

Step-by-step explanation:

i did the thing

alexandr402 [8]3 years ago
6 0

Answer:

1. Multiply (2) by 2 to eliminate the x-terms when adding

2. Multiply (2) by 3 to eliminate the y- term

Step-by-step explanation:

Use this system of equations to answer the questions that follow.

4x-9y = 7

-2x+ 3y= 4

what number would you multiply the second equation by in order to eliminate the x-terms when adding the first equation?

4x-9y = 7 (1)

-2x+ 3y= 4 (2)

Multiply (2) by 2 to eliminate the x-terms when adding the first equation

4x-9y = 7

-4x +6y = 8

Adding the equations

4x + (-4x) -9y + 6y = 7 + 8

4x - 4x - 3y = 15

-3y = 15

y = 15/-3

= -5

what number would you multiply the second equation by in order to eliminate the y- term when adding the second equation?

4x-9y = 7 (1)

-2x+ 3y= 4 (2)

Multiply (2) by 3 to eliminate the y- term

4x - 9y = 7

-6x + 9y = 12

Adding the equations

4x + (-6x) -9y + 9y = 7 + 12

4x - 6x = 19

-2x = 19

x = 19/-2

= -9.5

x = -9.5

You might be interested in
you borrow $200 from a friend to help pay for a new laptop computer. You pay your friend back $12per week. Write and solve an in
Nadusha1986 [10]
Given:
loan = 200
payment per week = 12
should be less than = 60

12x - 200 < 60 
       

12x - 200 < 60
<u>       +200    +200</u>
12x          < 260
 <u>÷12             ÷12</u>
    x          < 21.67

If x = 20
12x - 200     < 60
12(20) - 200 < 60
240 - 200     < 60
               40 < 60
4 0
3 years ago
Convert to scientific notation.
Helen [10]

Answer:

7.8432 × 10^-13

Step-by-step explanation:

5 0
3 years ago
Simplify: 4x3 – 3x2 + x + 3x3
Serhud [2]
Are you asking to simplify all of those equations?

4 0
3 years ago
Do the following lengths satisfy the Pythagorean Theorem? Lengths =14, 50, 48.<br> Yes<br> No
seraphim [82]

Answer:

  yes

Step-by-step explanation:

  14² +48² = 196 +2304 = 2500 = 50²

The three lengths (14, 48, 50) are a Pythagorean triple.

__

<em>Additional comment</em>

The two smaller numbers correspond to side lengths. The larger one corresponds to the hypotenuse length.

We typically write the numbers of a Pythagorean triple in increasing order, but the order doesn't really matter. As sides of a triangle, the triangle formed is a right triangle, regardless of the order.

6 0
2 years ago
Find the mean absolute deviation of the data. {83,73, 83,59, 24}
Alina [70]
18.32-is-your-answer,because-when-subtracting-the \\ mean-you-take-the-absolute-value.
6 0
3 years ago
Other questions:
  • » What is the volume of the prism?
    9·1 answer
  • The vector u = (2700, 3700) gives the number of units of two models of laptops produced by a company. The vector v = (1900, 950)
    14·1 answer
  • 6 ft<br> 4 ft<br> 6 ft<br><br> Help pls✨
    15·2 answers
  • What kind of solution is 4x-3 = 2(2x+1) ?
    5·1 answer
  • Mrs. Smith surveyed her class of 20 students to find out what sports they played. The results are recorded below. Based on the t
    15·2 answers
  • Please help I need to get this done will brainlist
    6·1 answer
  • How do you find the domain and range of a quadratic function?
    12·1 answer
  • A medical insurance company offers two​ prescription-drug insurance plans. With plan​ 1, James would pay the first ​$150 of his
    15·1 answer
  • Yuri needs to ship an order of 7,200 ornaments to a store. Each large carton holds 64 ornaments. Yuri fills as many cartons as h
    6·1 answer
  • What is 49 times 69 equal to?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!