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4 years ago

If x and y vary inversely, as y increase as, what happens to the value of x

Mathematics

1 answer:

Sonja [21]4 years ago

3 0

inverse proportionality between 2 variables follows this .

y = k/x

where k is proportional constant

as value of one variable increases/decreases , value of other variable decreases/increases

if x increases, y will decrease

if x decreases , y will increase

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In 2003 there were 1078 JC Penney stores and in 2007 there were 1067 stores.

Tamiku [17]

Answer:

a) $f(s)=\frac{-11}{3}s+\frac{3245}{3}$ $f(1)=1078 stores$ b) 2012, 1049 stores. 2014, 1041 stores. c) Yes it is a downsizing company.

Step-by-step explanation:

s=year | f(s) = number of stores per year

1 | 1078

4| 1067

$m=\frac{1067-1078}{4-1}\Rightarrow m=\frac{-11}{3}\\1078=-\frac{11}{3}*1+b\Rightarrow b=\frac{3245}{3}\\f(s)=\frac{-11}{3}s+\frac{3245}{3}$

s=1 in 2003

$s=1 year =2003\\ Testing\\f(1)=\frac{-11}{3}(1)+\frac{3245}{3}=\frac{3234}{3}=1078\\ f(1)=1078$

b) For 2012, s=9. For 2014, s=11

$\\f(s)=\frac{-11}{3}s+\frac{3245}{3}\\ \\f(9)=\frac{-11}{3}(9)+\frac{3245}{3}\cong1049\\\\f(11)=\frac{-11}{3}(11)+\frac{3245}{3}\cong=1041$

c) In deed. Since the function shows a decreasing amount of JC Penney stores. Maybe this is a downsizing from this company, progressively closing some stores.

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Answer:

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3 years ago

Is 62 divisible by 9 ye

Aleksandr [31]

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Step-by-step explanation:

No it is not evenly divided ( 6.8888)

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3 years ago

Read 2 more answers

Please help someone!!!

maria [59]

Answer:

$x = 25$

Step-by-step explanation:

$(4x) + (5 + 3x) = 180$

$4x + 5 + 3x = 180$

$7x + 5 = 180$

$7x = 180 - 5$

$7x = 175$

$\frac{7x}{7} = \frac{175}{7}$

$x = \frac{175}{7}$

$x = 25$

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3 years ago