Question

can someone please help me

Answer 1

with

Answer 2

With what?

Answer 3

my math i forgot how to do the math my mathing isn't mathing right now in my brain

Answer 4

ok whats the ??

Answer 5

I do not understand

Answer 6

here's a better picture

Answer 7

nvm

Answer 8

hey do u still need help because i can help u

Answer 9

(1st. Question)
\[\frac{ 2.5 }{ 5 }=\frac{ x }{ 15 }\]
First, switch them to opposite sides, like so:
\[\frac{ x }{ 15 }=\frac{ 2.5 }{ 5 }\]
Multiply both sides by 15:
\[\frac{ 15x }{ 15 }=\frac{ 2.5\times15 }{ 5}\]
Simplify first side:\[\frac{ 15x }{ 15 }:x\]
Divide the numbers: \[\frac{ 15 }{ 15 }=1\]
\[=x\]
Simplify second side:
\[\frac{ 2.5\times15 }{ 5 }\]
Multiply:\[2.5\times15=37.5\]
Divide: \[\frac{ 37.5 }{ 5 }=7.5\]
Therefore:\[x=7.5\]

Answer 10

(2nd. Question)
\[\frac{ x }{ 4 }=\frac{ 35 }{ 20 }\]
Multiply both sides by 10:
\[\frac{ x }{ 4 }\times10=\frac{ 35 }{ 20 }\times10\]
Simplify first side:
\[\frac{ x }{ 4 }\times10\]
When multiplying fractions example:\[a \times \frac{ b }{ c }=\frac{ a \times }{ c }\]
So, it'd look like this:\[=\frac{ x \times10 }{ 4 }\]
Cancel common factor, which is 2:
\[=\frac{ 5x }{ 2 }\]
Simplify second side:
\[\frac{ 35 }{ 20 }\times 10\]
Convert element to fraction:
\[10=\frac{ 10 }{ 1 }\]
Therefore:
\[=\frac{ 10 }{ 1 }\times \frac{ 35 }{ 20}\]
Cancel common factor, which is 10:
\[=\frac{ 35 }{ 2 }\]
Leaving us with:
\[\frac{ 5x }{ 2 }=\frac{ 35 }{ 2 }\]
Now we divide each side by 2:
\[\frac{ 2\times 5x }{ 2 }=\frac{ 35\times 2 }{ 2 }\]
Multiply first side:\[2\times 5=10\]
Divide the numbers:\[\frac{ 10 }{ 2 }=5\]
\[=5x\]
Multiply second side:\[35\times 2=70\]
\[=\frac{ 70 }{ 2 }\]
Divide\[\frac{ 70 }{ 2 }=35\]
\[=35\]
Which is:
\[5x=35\]
Now to final it, divide both sides by 5:
\[x=7\]