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3 years ago

2 and 2 thirds divided by 4

2 answers:

5 0

2 2/3 can be written as 8/3. 4 can be written as 4/1.
We use KCF (Keep. Change. Flip.)
We keep 8/3 as 8/3.
We change the dividing sign to its opposite which is a multiplication sign.
We flip the 4/1. You put the reciprocal of 4/1 (1 divided by that number. A trick to get the reciprocal is to just make the numerator the denominator and the denominator the numerator.) The reciprocal is 1/4
8/3 times 1/4 is 8/12 which is simplified to 2/3
2 2/3 divided by 4= 2/3

KonstantinChe [14]3 years ago

4 0

Change the mixed fraction to an improper fraction. Multiply 2 by 3 and add 2 to get 8. Put the 8 over 3. Now you can multiply
$2 \frac{2}{3}$ = $\frac{8}{3}$

To divide the fraction, multiply the reciprocal, or opposite of the number(4 turns to 1/4)

You could multiply acros to get 8/12 and simplify to 2/3. Or you could cross simplify.
$\frac{8}{3}$ × $\frac{1}{4}$ = 2/3

Your answer is $\frac{2}{3}$

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If the volume of the pyramid is 72cm3, what is it’s height in cm? A.3. B.9. C.12. D.18

NikAS [45]

Answer:

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Step-by-step explanation:

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4 years ago

PLEASE HELP ME!!!! PLEASE PLEASE!!! 40 POINTS a rectangular toy box has a length of x + 1 feet a width of 2x - 5 feet if the vol

insens350 [35]

Answer:

the dimensions of the toy box:

Step-by-step explanation:

x+1=2x

2x-5

like terms;

- crossing over becomes + and vice versa

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3 years ago

Two collinear points on a line are given in the table below:

katrin [286]

Answer:

$(4,3)$ and $(7,2)$ do not lie on the line

Step-by-step explanation:

Given

$(0,0)\ and\ (2,1)$

Required

Determine which points that are not on the line

First, we need to determine the slope (m) of the line:

$m = \frac{y_2 - y_1}{x_2- x_1}$

Where

$(x_1,y_1) = (0,0)$

$(x_2,y_2) = (2,1)$

So;

$m = \frac{y_2 - y_1}{x_2- x_1}$

$m = \frac{1 - 0}{2-0}$

$m = \frac{1}{2}$

Next, we determine the line equation using:

$y - y_1 = m(x -x_1)$

Where

$m = \frac{1}{2}$

$(x_1,y_1) = (0,0)$

$y - y_1 = m(x -x_1)$ becomes

$y - 0 = \frac{1}{2}(x - 0)$

$y = \frac{1}{2}x$

To determine which point is on the line, we simply plug in the values of x to in the equation check.

For $(4,2)$

$x = 4$ and $y =2$

Substitute 4 for x and 2 for y in $y = \frac{1}{2}x$

$2 = \frac{1}{2} * 4$

$2 = \frac{4}{2}$

$2=2$

This point is on the graph

For $(4,3)$

$x = 4$ and $y = 3$

Substitute 4 for x and 3 for y in $y = \frac{1}{2}x$

$3 = \frac{1}{2} * 4$

$3 = \frac{4}{2}$

$3 \neq 2$

This point is not on the graph

For $(7,2)$

$x = 7$ and $y = 2$

Substitute 7 for x and 2 for y in $y = \frac{1}{2}x$

$2 = \frac{1}{2} * 7$

$2 = \frac{7}{2}$

$2 \neq 3.5$

This point is not on the graph

$(\frac{4}{8},\frac{2}{8})$

$x = \frac{4}{8}$ and $y = \frac{2}{8}$

Substitute $\frac{4}{8}$  for x and  $\frac{2}{8}$ for y in $y = \frac{1}{2}x$

$\frac{2}{8} = \frac{1}{2} * \frac{4}{8}$

$\frac{2}{8} = \frac{1 * 4}{8 * 2}$

$\frac{2}{8} = \frac{4}{16}$

$\frac{1}{4} = \frac{1}{4}$

This point is on the graph

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3 years ago

Find the equation of the line. Use exact numbers Y= __ x+ __

nika2105 [10]

Answer:

y = 3/4x -2

Step-by-step explanation:

slope = rise/run = 3/4

y intercept is where the line crosses the y axis, it crosses at -2

5 0

3 years ago

Someone please help me please

sertanlavr [38]

Answer:

D. (x - 2)(x + 2)

Step-by-step explanation:

Look at the graph, when y = 0, x = - 2 and x = 2, vertex = -4

OK so x = -2 means x + 2 = 0

and x = 2, means x - 2 = 0

answer :D. (x - 2)(x + 2)

7 0

3 years ago