Question

Which number should each side of the equation 45x=8 be multiplied by to produce the equivalent equation of x = 10? −45 15


A −45

B 15

C 54

D 5

Answer 1

For this case, we have the following equation:

$\frac {4} {5} x = 8$

We must find a number that when multiplied on both sides of the equation, as a result:

$x = 10$

So, if we multiply $8 * 5 = 40$

Now, the left side must also be multiplied by 5 to not alter the equation:

$\frac {4} {5} x * 5 = 4x$

Finally we have$4x = 40$

Clearing "x":

$x = \frac {40} {4}\\x = 10$

So, the number is 5

Answer:

Option D

Answer 2

Answer:

the answer is C. 5/4

Step-by-step explanation: