Mathematics: Solve step by step: 10/2= a/a-9 note: i need this !

Solve step by step: 10/2= a/a-9 note: i need this - id10291911635, mrashrafkotkaat

Ответ:

UltimateGoal

31.12.2021

For this question you can say:
10/2 = a/a-9 is equal to 2a = 10a - 90
so now you should add -10a on both sides:
2a -10a = -90 ⇒ -8a = -90 ⇒ a = -90/-8 ⇒ a = 11.25 :)))
i hope this is helpful
have a nice day

0,0(0 оценок)

Ответ:

marianabeel230

31.12.2021

Mathematics

10/2= a/a-9

10/2=a/a+-9

Multiply all terms by a and cancel

10a/2 = a+-9a

Simplify both sides of the equation

5a= -8a

Add 8a to both sides

5a+8a= -8a+8a

13a=0

Divide both sides by 13

13a/13=0/13

a= 0

Answer : No solution

I hope that's help !

0,0(0 оценок)

Ответ:

saintsfan2004

04.06.2021

Mathematics

$f(x)=23x+27\\
y=23x+27\\
23x=y-27\\
x=\frac{1}{23}y-\frac{27}{23}\\
f^{-1}(x)=\frac{1}{23}x-\frac{27}{23}\\\\
g(x)=12x-d\\
y=12x-d\\
12x=y+d\\
x=\frac{1}{12}y+\frac{1}{12}d\\
g^{-1}(x)=\frac{1}{12}x+\frac{1}{12}d\\\\
$

$\frac{1}{23}(\frac{1}{12}x+\frac{1}{12}d)-\frac{27}{23}=\frac{1}{12}(\frac{1}{23}x-\frac{27}{23})+\frac{1}{12}d\\
\frac{1}{276}x+\frac{1}{276}d-\frac{27}{23}=\frac{1}{276}x-\frac{27}{276}+\frac{1}{12}d\\
\frac{1}{276}d-\frac{1}{12}d=-\frac{27}{276}+\frac{27}{23}=\\
\frac{1}{276}d-\frac{23}{276}d=-\frac{27}{276}+\frac{324}{276}=\\
-\frac{22}{276}d=\frac{297}{276}=\\
-22d=297\\
d=-\frac{297}{22}
$

0,0(0 оценок)

Solve step by step:
10/2= a/a-9
note: i need this !

Ответ:

Ответ:

Ответ:

Ask your question to the AI advisor

More tips

Answers on questions: Mathematics

Ask an AI advisor a question