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Evgesh-ka [11]
3 years ago
6

You are given the system of equations to solve by the elimination method, which is an INCORRECT step that will NOT produce a sys

tem with the same solution? 5x + 3y = 5 8x + 2y = 6
Mathematics
1 answer:
ziro4ka [17]3 years ago
3 0

See explanation for the incorrect step.

Step-by-step explanation:

The steps for solving simultaneous equations by elimination method are;

  • Naming the equations (i) and (ii)
  • Multiplying each equation by a suitable number so that the two equations have the same leading coefficients
  • Subtracting the second equation (ii) from the first equation (i)
  • Solving the new equation for value of x or y
  • Substituting the value of x or y in equation (i) or (ii)
  • Getting the solutions

In this case, the equations are;

5x+3y=5-------------- (i)

8x+2y=6-------------- (ii)

--------------multiplying equation (i) by 2 and (ii) by 3

10x+6x=10

24x+6y=18

-------------------performing subtraction

14x=8 --------divide both sides by 14 to remain with x

14x/14 =8/14

x=8/14 = 4/7

Substitute value of x in equation (i)

5(4/7) +3y =5

20/7 +3y =5 -------collect like terms

3y= 5- 20/7

3y=15/7

y=5/7

Learn More

Elimination Method :brainly.com/question/11962747

Keywords: system, equations,elimination method, incorrect,step,solution

#LearnwithBrainly

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You need to solve a system of equations. You decide to use the elimination method. Which of these is not allowed? 2x - 3y = 12
suter [353]

Answer:

A.

Step-by-step explanation:

The Elimination Method is the method for solving a pair of linear equations which reduces one equation to one that has only a single variable.

If the coefficients of one variable are opposites, you add the equations to eliminate a variable, and then solve.

If the coefficients are not opposites, then we multiply one or both equations by a number to create opposite coefficients, and then add the equations to eliminate a variable and solve.

When multiplying the equation by a coefficient, we multiply both sides of the equation (multiplying both sides of the equation by some nonzero number does not change the solution).

So, option B is not allowed (it is not allowed to multiply only one part of the equation)

6 0
2 years ago
Determine the next three terms in the following sequence:<br><br> -1, 1/2, -1/4, 1/8,__,__,__,….
matrenka [14]

Answer:

B

Step-by-step explanation:

1 : 2 = 1/2 : 2 = 1/4 : 2 = 1/8 : 2 = 1/16 : 2 = 1/32 : 2= 1/64

4 0
3 years ago
a plant grows at a constant rate. lokesh records the height of the plant each week. The unit rate is measured in inches per week
Slav-nsk [51]

I know you already got this answered, but I need points. Can I get brainliest?

7 0
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Find the value of a square + b square when a+b = 6 a_b = 4
Vanyuwa [196]

Answer:

a+b=6

a-b =4

______subtract

(a-a)+(b-(-b))=6-4

0+2b = 2

b= 1

put the value of b at any equation

a+1 =6

then a=6-1=5

a square+b square= 25+1= 26

4 0
3 years ago
Josh attempted 56 free throws during the basketball season. He made 57 of them. How many free throws did he make?
Scorpion4ik [409]

Answer:

He made approximately 32 free throws.

Step-by-step explanation:

Assuming that there's a typo in the question and that he made 57% of his attempted free throws, then we can solve it as shown below:

We can apply a rule of three in order to calculate the number of free throws he made. This is done as follows:

56 free throws -> 100%

x free throws -> 57%

56/x = 100/57

100*x = 57*56

x = 57*56/100 = 31.92

It can also be solved by transforming the percentage in a fraction such as 57% = 57/100 and then multiplying it by the total attempts.

free throws made = 56*57/100 = 31.92

He made approximately 32 free throws.

7 0
3 years ago
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