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3 years ago

Why can you use fraction multiplication to check the

Mathematics

1 answer:

LUCKY_DIMON [66]3 years ago

4 0

Answer:

Division and multiplication are inverse operations. This means they "undo" each other. You can check your answer by multiplying the quotient by the divisor. You should get the dividend.

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Solve and state any extraneous solutions

Mice21 [21]

$\frac{3x}{x - 1} + 2 = \frac{3}{x - 1}$

$\frac{3x}{x - 1} + \frac{2(x - 1) }{ x - 1} = \frac{3}{x - 1}$

$\frac{3x}{x - 1} + \frac{2x - 2}{ x - 1} = \frac{3}{x - 1}$

$\frac{3x + 2x - 2}{ x - 1} = \frac{3}{x - 1}$

$3x + 2x - 2 = 3$

$5x - 2 = 3$

$5x = 3 + 2$

$5x = 5$

$x = \frac{5}{5}$

$x = 1$

3 0

3 years ago

Write an equation in slope intercept form for a line that goes through the point (-9,4) and is perpendicular to line y=-3x-2

nadezda [96]

Answer:

y = 1/3x + 7

Step-by-step explanation:

Perpendicular slope is opposite reciprocal so it will be 1/3

Use the slope and point given and plug into y = mx + b

4 = 1/3 (-9) + b

4 = -3 + b

7 = b

write new equation with new b and m

y = 1/3x + 7

3 0

3 years ago

Find the area of the rhombus below.

scoray [572]

<u>Step-by-step explanation:</u>

diagonal 1 (d1) = 5 + 5

= 10 ft

diagonal 2 (d2) = 8 + 8

= 16 ft

area of rhombus = 1/2 × d1 × d2

= 1/2 × 10 × 16

= 80 ft²

<h2>--------------------------------</h2><h2>Follow me</h2>

4 0

3 years ago

Analyze Lorena's work to determine which statements are correct. Check all that apply. In Step 1, she correctly distributed ‚Äì3

12345 [234]

Answer:

The answer is "The correct step are 1, 2 and 4 ".

Step-by-step explanation:

In the question some data is missing so, its correct question can be defined as follows:

In the given equation:

$\to \bold{5k -3(2k- \frac{2}{3}) -9 =0}$

Lorena's steps should be evaluated

In Stage 1: It is right because it allocates – 3 to parentheses appropriately, , that's why she has 5k-6k+2-9=0

In Stage 2: It is right because in this term 5k and 2k are merged, that's why she got -k-7=0

In Stage 3: It is not right because the propagation property of fair treatment was not used.

In Stage 4: It is right because it multiplies the variable on one of the two sides by -1. So, k=-7 to get.

6 1

3 years ago

Read 2 more answers

How does a digit in the ten thousand place compare to a digit in the thousands place

dezoksy [38]

It is ten times bigger than the other

4 0

3 years ago