Question

plz help me I will make as brain list​

Answer 1

Answer:

it's so easy

try again

you can do it

Step-by-step explanation:

make me a brainlist answer

Answer 2

Step-by-step explanation:

So, we're given that

x/2 =y/2 = z/7

Let them be equal to another number a

\frac{x}{2} = \frac{y}{3} = \frac{z}{7} = a

2

x

=

3

y

=

7

z

=a

therefore,

x/2 = a

x = 2a

similarly,

y = 3a and z = 7a

(2x-5y+4z)/2y

substitute the values for x, and z

and you'll get

{2(2a) - 5(3a) + 4(7a)} / 2(3a)

= (4a - 15a + 28a)/6a

= 17 a/6a

= 17/6

= 2.8