Question

By what number must you multiply each

side of the equation 2/3x=10

to produce the equivalent equation x=15 ?



A.3/2




B.-2/3




C.3




D.1/3

Answer 1

@izuru

Answer 2

@Michele_Laino

Answer 3

@madhu.mukherjee.946

Answer 4

can you help me @Vocaloid ?

Answer 5

Hint

\[\large \frac{a}{bx} = c \rightarrow x= \frac{b}{a}(c)\]

Answer 6

and then use 10 or 15 to multiply the 2 numbers?

Answer 7

We are just asked to turn \(\large \frac{2}{3x} = 10\) into \(\large x = 15\)

So we needed to isolate 'x' which can be done by...? Look at my above post

Answer 8

b/a 15 or b/a 10?

Answer 9

Compare the two

\[\large \frac{2}{3x} = 10 \rightarrow \frac{a}{bx} = c\]

\[\large x = ?\]

Answer 10

x=15

Answer 11

Yes we know that 'x = 15' that is given

Look again what I posted, I'll copy it all at once

\[\large \frac{a}{bx}=c \rightarrow x = \frac{b}{a}(c)\]

You have

\[\large \frac{2}{3x} = 10 \rightarrow x = \frac{?}{?}(10)\]

Answer 12

i think its option A coz if you multiply 3/2 on both sides you get x=15