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diamong [38]
3 years ago
7

Suppose y varies directly with x. Write a direct variation equation that relates x and y.

Mathematics
2 answers:
kenny6666 [7]3 years ago
8 0
If y varies directly with x:

y = k * x

When x = 2, y = - 10.

- 10 = k * 2

k = - 10 : 2

k = - 5

Therefore: y = - 5 x

And when x = 12 ;

y = - 5 * 12

Answer:

y = - 60
HACTEHA [7]3 years ago
3 0

y=kx y=-5x

-10/2=k 2/2 y=-5(12)

-5=k y=-60

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Step-by-step explanation:

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3 years ago
The variable b varies directly as the square root of c. lf b= 100 when c=4, which equation can be used to find other combination
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Answer:

<em>b = 50√c</em>

Step-by-step explanation:

If b varies directly as the square root of c, this is expressed as;

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<em>hence equation that can be used to find other combinations of b and c is b = 50√c</em>

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Nookie1986 [14]
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3 years ago
What are the characteristics of pie chart?
anygoal [31]

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The characteristics of pie chart.

<h3>What do you mean by chart?</h3>

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Given that:

A pie chart (or a circle chart) is a circular statistical graphic, which is divided into slices to illustrate numerical proportion. In a pie chart, the arc length of each slice (and consequently its central angle and area) is proportional to the quantity it represents.

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1 year ago
A sum of money is invested at 12% compounded quarterly. About how long will it take for the amount of money to double?
kompoz [17]

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  5.9 years

Step-by-step explanation:

We believe a better representation of the compound interest formula is ...

  V(t)=P(1+\dfrac{r}{n})^{nt}

We want to find the value of t for P=1 and V(t)=2. We are told n=4, so the formula becomes ...

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3 years ago
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