3 years ago

Help me please! It'd mean so much!

Mathematics

1 answer:

Alina [70]3 years ago

8 0

Answer:

<C seems correct to me.

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Suppose that y varies inversely as x and that y=8 when x=3. Calculate the value of y when x= 10.

Svetach [21]

$\bf \qquad \qquad \textit{inverse proportional variation} \\\\ \textit{\underline{y} varies inversely with \underline{x}} ~\hspace{6em} \stackrel{\textit{constant of variation}}{y=\cfrac{\stackrel{\downarrow }{k}}{x}~\hfill } \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \textit{we know that } \begin{cases} y = 8\\ x = 3 \end{cases}\implies 8=\cfrac{k}{3}\implies 24=k~\hfill \boxed{y = \cfrac{24}{x}} \\\\\\ \textit{when x = 10, what is \underline{y}?}\qquad \qquad y = \cfrac{24}{10}\implies y = \cfrac{12}{5}$

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4 years ago

Miya is selling grapefruit and nuts for a fundraiser. The grapefruits cost 5 dollars each and a bag of nuts cost 15 dollars each

anyanavicka [17]

Answer:

A) 5G + 15N = 250

B) G + N = 30 We'll multiply B) by -5

B) -5G -5N = -150 then we add A)

A) 5G + 15N = 250

10N = 100

N = 10 bags of nuts ($150.00)

We put N=10 into A)

A) 5G + 150 = 250

A) 5G = 100

G = 20 Grapefruits ($100.00)

Step-by-step explanation:

6 0

3 years ago

Is 0.09 rational or irrational?

Salsk061 [2.6K]

0.09 is a rational number

4 0

3 years ago

Read 2 more answers

19. What percent of offspring will be blue eyed? 0% 25% 50% 100%

zloy xaker [14]

It is 0% Bc it’s not capital

5 0

3 years ago

14 + 2y - 3+ 7x - 12y +3x - 20=

Trava [24]

Answer:

The answer is 10x - 10y - 9

Step-by-step explanation:

14 - 3 - 20 = -9

2y - 12y = -10y

7x + 3x = 10x

14 + 2y - 3 + 7x - 12y + 3x - 20 = 10x - 10y - 9

4 0

3 years ago