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2 years ago

0.9/0.5 = a/10 Plz help

Mathematics

2 answers:

MissTica2 years ago

8 0

Answer:

a = 18

Step-by-step explanation:

Step 1: Cross-multiply.

$0.5 * a = 10*0.9$
$0.5a =9$

Step 2: Divide both sides by 0.5

$\frac{0.5a}{0.5} =\frac{9}{0.5}$
$a = \frac{90}{5}$
$a = 18$

Step 3: Check if solution is correct.

$\frac{0.9}{0.5}=\frac{18}{10}$
$\frac{9}{5} =\frac{18}{10}$
$\frac{18/2}{10/2} =\frac{9}{5}$
$\frac{9}{5} =\frac{9}{5}$

Therefore, a = 18.

jonny [76]2 years ago

7 0

Answer:

Step-by-step explanation:

10/0.5 = 20

20 * 0.9 = 18

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