3 years ago

Shopping at discount clothing stores can save you a lot of money. Felicia recently bought a jacket

Mathematics

1 answer:

Cerrena [4.2K]3 years ago

8 0

Answer:

33.33%

Step-by-step explanation:

use a proportion

20/60 =10/30=1/3=33.333%

hope this helped!

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the variable z is directly proportional to x. when x is 6, z has the value 18. what is the value of z when x = 10 the variable z

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Z $\alpha x$
Z=kX
When x=6, z=18,
Finding value of z,
18=k*6
k=3
Z=3X
when x=10,
Z=3*10
Z=30

Part B;
Z $\alpha \frac{1}{x}$
z= $\frac{a}{x}$
Where x is a constant of proportionality,
when x=3, z=2
2= $\frac{a}{3}$
a=3*2
a=6
When x is 13,
Z= $\frac{6}{13}$

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liubo4ka [24]

First, set 2x+7 equal to 3x-7 since they are the same angle due to the parallel lines.

2x+7=3x-7
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Then, since 2x+7 and 12y+1 equals 180, put it together to find y:

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