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Nutka1998 [239]
3 years ago
11

if y varies directly as x and y is 48 when x is 48 when x is 6 which expression can be used to find the values of y when x is 2

Mathematics
2 answers:
Oksanka [162]3 years ago
6 0

Answer:

the expression is

y=8x

Step-by-step explanation:

y varies directly as x is written as

y  \alpha x

introducing constant

y=kx

from the question, when y=48, x=6

substitute it in the formula

48=6k

<em>maki</em><em>ng</em><em> </em><em>k</em><em> </em><em>the</em><em> subject</em><em> </em><em>by</em><em> </em><em>divi</em><em>ding</em><em> </em><em>throu</em><em>gh</em><em> </em><em>by</em><em> </em><em>6</em>

<em>\frac{48}{6}  =  \frac{6k}{6}</em>

<em>k</em><em>=</em><em>8</em>

<em>put</em><em>ting</em><em> </em><em>the </em><em>va</em><em>lue</em><em> </em><em>of</em><em> </em><em>k</em><em> </em><em>in</em><em> </em><em>the</em><em> </em><em>exp</em><em>ression</em><em>,</em>

<em>y</em><em>=</em><em>8</em><em>x</em>

<em>the</em><em> </em><em>valu</em><em>e</em><em> </em><em>of</em><em> </em><em>y</em><em> </em><em>whe</em><em>n</em><em> </em><em>x</em><em>=</em><em>2</em>

<em>y</em><em>=</em><em>8</em><em>×</em><em>2</em>

<em>y</em><em>=</em><em>1</em><em>6</em>

<em>thu</em><em>s</em><em> </em><em>the </em><em>valu</em><em>e</em><em> </em><em>of</em><em> </em><em>y</em><em> </em><em>whe</em><em>n</em><em> </em><em>x</em><em>=</em><em>2</em><em> </em><em>is</em><em> </em><em>1</em><em>6</em><em>.</em>

lana [24]3 years ago
5 0

Answer:

EDGE 2020

Step-by-step explanation:

A) y=48/6(2)

trust me

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