Question

may someone help with math i need help explaing like how i got answer i know the answer the answer but how i explaini know the answer its b but how i explain
21 to x and 7 to 10
a.24
b.30
c.40

Answer 1

\[\frac{21}{x}=\frac{7}{10}\]?

Answer 2

okay

Answer 3

you can do it by thinking
since \(7\times 3=21\) then \(10\times 3=30\)

Answer 4

thank u because i was lost

Answer 5

can u explain step by step

Answer 6

or you can do \[\frac{x}{21}=\frac{10}{7}\iff x=21\times \frac{10}{7}=3\times 10=30\] either way

Answer 7

okay and my answer still is 30

Answer 8

yes

Answer 9

im srry didnt mean to bother u

Answer 10

lol no problem

Answer 11

how do u write your fraction like that on the computer

Answer 12

magic
the magic of \(\LaTeX\)

Answer 13

but you can do it with the equation tool below

Answer 14

okay im about to try

Answer 15

thank u

Answer 16

yw

Answer 17

lol