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3 years ago

9

HELP I CANT FIGURE IT OUT!

id="TexFormula1" title=" \frac{5}{18} - \frac{1}{4} " alt=" \frac{5}{18} - \frac{1}{4} " align="absmiddle" class="latex-formula">

1 answer:

bija089 [108]3 years ago

8 0

<em>Answer:</em>

<em>1/36</em>

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

<em>²⁾5/18 - ⁹⁾1/4 =</em>

<em>= 10/36 - 9/36</em>

<em>= 1/36</em>

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Sonali invests 15% of her monthly salary in insurance policies.

strojnjashka [21]

Answer:

₹42,500

Step-by-step explanation:

Let Sonali's monthly income be ₹x

<h2>According to the question </h2>

$15\% \:ofx + 55\% \: of \: x + 12750 = x$

$= > \frac{15}{100} x + \frac{55}{100} x + 12750 = x$

$= > \frac{70}{100} x + 12750 = x$

$= > 12750 = (1 - \frac{70}{100} )x$

$= > 12750 = 30x$

$= > x = \frac{12750 \times 10}{3}$

$= > 42500$

So your answer will be ₹42,500.

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2 years ago

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Write the equation of a linear function for which f=(-4)=0 and f=(0)=-2

densk [106]

Answer:

y = -0.5x - 2

Step-by-step explanation:

equation: f(x) = mx + b

f(-4) : -4m + b = 0 ...(1)

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-4m - 2 = 0

m = - 1/2 = - 0.5

linear equation: y = -0.5x - 2

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3 years ago

If the probability of receiving a message on the internet today is 8/9, what is the probability of not receiving a message?

PIT_PIT [208]

Answer:

The probability is 1/9

Step-by-step explanation:

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2 years ago

Someone please help! Thank you

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I think the answer would be D, but I’m not sure.

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3 years ago

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The cost of internet access at a café is a function of time. The costs for 8, 25, and 40 minutes are shown. Write an equation in

PolarNik [594]

Answer:

$y=0.17x+3$
The cost of surfing the web at the café for one hour: $\$13.2$

Step-by-step explanation:

The equation of the line in Slope-Intercept form is:

$y=mx+b$

Where "m" is the slope and "b" is the y-intercept.

Take two points and substitute them into the formula for calculate the slope (The formula is $m=\frac{y_2-y_1}{x_2-x_1}$ ).

Having these points:

$(8,4.36)$ and $(40,9.80)$

You can identify that:

$y_2=4.36\\y_1=9.80\\\\x_2=40\\x_1=8$

Then, the slope is:

$m=\frac{4.36-9.80}{40-8}=0.17$

Substitute the slope and the coordinates of any point on the line into the equation $y=mx+b$ and then solve for "b":

$4.36=0.17(8)+b\\\\4.36-1.36=b\\\\b=3$

Therefore, equation in Slope-Intercept form that represents the function is:

$y=0.17x+3$

Since 1 hour hour has 60 minutes, you need to substitute $x=60$ into the equation and then evaluate, in order to find the cost of surfing the web at the café for one hour. Then:

$y=0.17(60)+3\\\\y=13.2$

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3 years ago