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
Irina18 [472]
3 years ago
14

Francine solves the system of equations using the linear combination method.

Mathematics
2 answers:
k0ka [10]3 years ago
6 0
<span>
C is the correct answer.</span><span>
</span>

vaieri [72.5K]3 years ago
6 0

Answer:

Multiply 4x+3y=−1 by 3. Multiply 3x−5y=4 by −4 . Add the resulting equations together.

Step-by-step explanation:

Given the simultaneous equation below:

4x+3y=−1 ...(1) × 3

3x−5y=4 ...(2) × -4

Using elimination method to solve the problem,

Before we can eliminate x, the coefficient of x in both equation must have similar whole number as coefficient.

To make the coefficient equal, we will multiply equation 1 by 3 and equation 2 by -4 as shown above

The equations will then become

12x+9y = -3

-12x+20y = -16

Then we will add the resulting simultaneous equations.

The steps that would allow her to eliminate the x terms in the system of equations is to "Multiply 4x+3y=−1 by 3. Multiply 3x−5y=4 by −4 . Add the resulting equations together"

You might be interested in
When u are doing math and u have a question with pi in it don't u use "3.14" or do u use "3.141" or is it "3.14159?
Tju [1.3M]
Usually, I use 3.14.
7 0
3 years ago
Read 2 more answers
P+29=³√x make x the subject​
Ksivusya [100]

Answer:

Step-by-step explanation:

P+29=³√x

Find the cube of both side

(P+29)³=(³√x)³

(P+29)³=x

7 0
3 years ago
Solve the right triangle. Round decimals to the nearest tenth
Tems11 [23]

Answer:

  j = 19.6

  k = 25.9

  J = 49°

Step-by-step explanation:

The mnemonic SOH CAH TOA is intended to remind you of the relationships between sides and angles in a right triangle.

<h3>Analysis</h3>

The given side is opposite the given angle. We want to find the other acute angle and the missing sides: the hypotenuse, and the adjacent side. The relations involving the opposite side are ...

  Sin = Opposite/Hypotenuse   ⇒   Hypotenuse = Opposite/Sin

  Tan = Opposite/Adjacent   ⇒   Adjacent = Opposite/Tan

Of course, the acute angles in a right triangle are complementary, so we can use that fact to find the missing angle.

<h3>Application</h3>

  Hypotenuse = Opposite/Sin

  IJ = 17/sin(41°) ≈ 25.9

  Adjacent = Opposite/Tan

 IK = 17/tan(41°) ≈ 19.6

  Angle J = 90° -41° = 49°

In summary, ...

  j = 19.6

  k = 25.9

  J = 49°

8 0
2 years ago
If the diameter of a circle is 5 centimeters, how long is the arc subtended by an angle measuring 60° ?
s2008m [1.1K]
<span>circumference = 5 * PI = </span><span><span><span>15.7079632679 </span> </span> </span>
<span>arc length   =   circumference • [central angle (degrees) ÷ 360]
</span>arc length   =   <span><span>15.7079632679 </span> * 60 /360
</span>arc length   =   <span> <span> <span> 2.617993878 </span> </span> </span>


8 0
3 years ago
Read 2 more answers
3. Seiji and Gavin both worked hard over the summer. Together, they earned a total of $425. Gavin earned $25 more than Seiji. Ho
Paha777 [63]
$425 - $25 = $400

$400/ 2 (the two people)= $200

Seiji made $225 because it said he made $25 more
and Gavin made $200
3 0
3 years ago
Other questions:
  • A triangle that has exactly 2 sides of the same length is a
    7·1 answer
  • a contract is good in the base of a circular fountain on the blueprint the base of the food has a date diameter of 18 cm the boo
    5·1 answer
  • Question 8. I need help with
    8·1 answer
  • 17. Segment MN is drawn in the coordinate plane. Point M has coordinates (13,9) and the midpoint of MN is the point (4.4). What
    13·1 answer
  • Help my math teacher created thistest and I don’t know how to do any of this
    6·1 answer
  • How would I solve this? Thank you to whoever answers.
    13·1 answer
  • Find the value of x for which l is parallel to m. The diagram is not to scale.
    11·1 answer
  • Which of the following graphs represent a nonproportional relationship? Select all that apply.
    8·2 answers
  • What is 30 miles in km?
    6·1 answer
  • Part 1: If we double each side of the second equation, 2x+y=8 we have 4x+2y=16. Explain why the same pair that is the solution t
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!