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3 years ago

23/40 - 11/30 Please answer

2 answers:

4 0

23/40 - (11)/30
Put 23/40 - 11/30 over the common denominator 120. 23/40 - 11/30 = (3×23)/120 + (4 (-11))/120:
(3×23)/120 + (4 (-11))/120
3×23 = 69:
69/120 + (4 (-11))/120
4 (-11) = -44:
69/120 + (-44)/120
69/120 - (44)/120 = (69 - 44)/120:
(69 - 44)/120
| 6 | 9
- | 4 | 4
| 2 | 5:
25/120

The gcd of 25 and 120 is 5, so 25/120 = (5×5)/(5×24) = 5/5×5/24 = 5/24:
Answer: 5/24

iVinArrow [24]3 years ago

3 0

The answer to this question is 5/24

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3 years ago

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3 years ago

Read 2 more answers

Whats the correct answer ?

11Alexandr11 [23.1K]

Answer:

$80, $48

Step-by-step explanation:

The original price was x.

The price is reduced by 40%. The markdown is 40% of x, or 0.4x.

The actual dollar amount of the markdown is $32.

That means that 0.4x must equal $32.

We set up an equation and solve for x, the original price.

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3 0

3 years ago

Find an equation for the line below. Thanks !

daser333 [38]

Answer:

$\huge\boxed{y=\frac{1}{4}x + \frac{13}{4}}$

Step-by-step explanation:

In order to find the equation to this line, we need to note that we see two points on this graph. Using these two points, we can use them to find the slope of the graph and use one to find the y-intercept.

We know that the slope of a line is defined by $\frac{\Delta y}{\Delta x}$ (change in y / change in x). Therefore, we can use our two points that we know - (-5, 2) and (3, 4) to find the slope.

The change in y is $4 - 2 = 2$ , and the change in x is $3 - (-5) = 3+5= 8$ . Therefore, our slope is $\frac{2}{8} = \frac{1}{4}$ .

Now that we know our slope, our equation in slope-intercept form looks something like this.

$y = \frac{1}{4}x + b$

However, we still have b to solve for. We can solve for this by substituting a point we already know into the equation. Let's substitute (3, 4) inside.

$4 = \frac{1}{4} \cdot 3+b$
$4 = \frac{3}{4} + b$
$b = \frac{16}{4}- \frac{3}{4}$
$b = \frac{13}{4}$

So now we know that the y-intercept is $\frac{13}{4}$ . Plugging that into our equation finishes it off, leaving our final equation to be $y = \frac{1}{4}x + \frac{13}{4}$ .