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Marta_Voda [28]
3 years ago
13

WHOEVER DOES THIS CORRECTLY WILL GET BRAINILEST

Mathematics
2 answers:
xxTIMURxx [149]3 years ago
7 0
Your answer to the problem is -1
madreJ [45]3 years ago
4 0

Answer:

-1

Step-by-step explanation:

Im pretty sure this is the right answer :)

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helppppp please what is it
evablogger [386]

Answer: 125 yards?

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Anyone can help me solve this equation using cross multiplying
Natali5045456 [20]

9514 1404 393

Answer:

  x = 1 or 5

Step-by-step explanation:

The notion of "cross-multiplying" is the idea that the numerator on the left is multiplied by the denominator on the right, and the numerator on the right is multiplied by the denominator on the left. This looks like ...

  \displaystyle \frac{x-1}{7}=\frac{2x-2}{3x-1}\ \longrightarrow\ (x-1)(3x-1)=(7)(2x-2)

Then the solution proceeds by eliminating parentheses, and solving the resulting quadratic equation.

  3x^2-4x+1=14x-14\\\\3x^2-18x+15=0\qquad\text{subtract $14x-14$}\\\\x^2-6x+5=0 \qquad\text{divide by 3}\\\\(x-1)(x-5)=0\qquad\text{factor}\\\\x\in\{1,5\}

_____

<em>Comment on "cross multiply"</em>

Like a lot of instructions in Algebra courses, the idea of "cross multiply" describes <em>what the result looks like</em>. It doesn't adequately describe how you get there. The <em>one and only rule</em> in solving Algebra problems is "<em>whatever is done to one side of the equation must also be done to the other side of the equation</em>." If you multiply one side by one thing and the other side by a different thing, you are violating this rule.

What looks like "cross multiply" is really "<em>multiply by the product of the denominators</em> and cancel like terms from numerator and denominator." Here's what that looks like with the intermediate steps added.

  \displaystyle \frac{x-1}{7}=\frac{2x-2}{3x-1}\\\\\frac{x-1}{7}\times7(3x-1)=\frac{2x-2}{3x-1}\times7(3x-1)\\\\(x-1)(3x-1)=(2x-2)(7)\qquad\textit{looks like}\text{ cross multiply}

8 0
2 years ago
PLEASE HELP!!! I need an urgent answer and I'll give brainiest just please answer this easy question!
Leya [2.2K]

Answer:

y , add 7, multiply by 3, then subtract 6.or Solve the system of equations and choose the correct answer from the list of options. x − y = 7 y = 3x + 12 2 over 19 comma 2 over 33 negative 2 over 19 comma negative 33 over 2 negative 19 over 2 comma negative 33 over 2 19 over 2 comma 33 over 2

Step-by-step explanation:

3 0
3 years ago
Solving Systems of linear equations by graphing. no graphing device.
valentina_108 [34]

Answer: (1,3)

Step-by-step explanation:

6 0
3 years ago
Silvio created a table of the possible outcomes of spinning a spinner divided into 4 equal sections labeled A, B, C, and D and r
fgiga [73]

Answer:

there is a 1/4 chance of getting a on the spinner and there is a 50% percent chance of getting less than 4 on the die.

Step-by-step explanation:

because there are 4 spaces and one answer is shown so yeah

3 0
3 years ago
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