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2 years ago

In the triangle below, which equation can be used to solve for x?

Mathematics

2 answers:

shutvik [7]2 years ago

5 0

Answer:

file?

Step-by-step explanation:

Murrr4er [49]2 years ago

4 0

U forgot the attachment

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12What mistake did the student make when solvingtheir two-step equation?(a)b) If correctly solved what should the value of be?

mixas84 [53]

Given the equation:

$\frac{x}{6}+3=-18$

(a) You can identify that the student applied the Subtraction Property of Equality by subtraction 3 from both sides of the equation:

$\frac{x}{6}+3-(3)=-18-(3)$

However, the student made a mistake when adding the numbers on the right side.

Since you have two numbers with the same sign on the right side of the equation, you must add them, not subtract them and use the same sign in the result. Then, the steps to add them are:

- Add their Absolute values (their values without the negative sign).

- Write the sum with the negative sign.

Then:

$\frac{x}{6}=-21$

(b) The correct procedure is:

1. Apply the Subtraction Property of Equality by subtracting 3 from both sides (as you did in the previous part):

$\begin{gathered} \frac{x}{6}+3-(3)=-18-(3) \\ \\ \frac{x}{6}=-21 \end{gathered}$

2. Apply the Multiplication Property of Equality by multiplying both sides of the equation by 6:

$\begin{gathered} (6)(\frac{x}{6})=(-21)(6) \\ \\ x=-126 \end{gathered}$

Hence, the answers are:

(a) The student made a mistake by adding the numbers -18 and -3:

$-18-3=-15\text{ (False)}$

(b) The value of "x" should be:

$x=-126$

4 0

1 year ago

What is the y intercept of the line?

Arada [10]

Answer:

The Y-Intercept of a line is the point where a line's graph intersects (crosses) the Y-axis.

A y-intercept of 3 means that a line's graph intersects the Y-axis at the point (0,3).

A y-intercept of -4 means that the graph of a line crosses the Y-axis at the point (0,-4).

Step-by-step explanation:

7 0

3 years ago

The sum of two nonzero real numbers is 4 times their product. What is the sum of the reciprocals of the two numbers

zlopas [31]

Answer:

Step-by-step explanation:

If the two numbers are 'a' and 'b', the sum of their reciprocals is ...

$\dfrac{1}{a}+\dfrac{1}{b}=\dfrac{a+b}{ab}=\dfrac{4ab}{ab}=\boxed{4}$

The sum of their reciprocals is 4.

7 0

2 years ago

As a nurse, part of your daily duties is to mix medications in the proper proportions for your patients. For one of your regular

avanturin [10]

Answer:

Hey! I see you need some help, I gotchu.so heres what i got,

Medication A: 32 would be the main answer

Step-by-step explanation:

Week 1- even medication from A and medication B

Week2- Medication A: 80 milligrams Medication B: 48 milligrams

week 3- Medication A:? Medication B: 6

They seem to be reducing it by 42, so 48-42=6 (medication B)

So therefore, 80-42=32. would be for medication A

3 0

2 years ago

<img src="https://tex.z-dn.net/?f=9%285x%20%2B%201%29" id="TexFormula1" title="9(5x + 1)" alt="9(5x + 1)" align="absmiddle" clas

egoroff_w [7]

Answer:

5+1=6x9=54/3=18

Step-by-step explanation:

how this helps! :)

6 0

1 year ago