Mathematics: 40 points if helped question is in the picture

You do 8 times 4 then you keep the decimal in the same place...

40 points if helped question is in the picture

Ответ:

lilspike420

31.07.2021

Mathematics

first term = 15

second term = 9

Third term = 3

Step-by-step explanation:

Let the first term be 3x

Let the second term be = 3x - 6 [ 6 less than first term]

Let the third term be = 1/5 of 3x

$=\frac{1}{5} \times 3x\\\\=\frac{3}{5}x$

Difference between first and third term = 12

That is ,

$3x - \frac{3}{5}x = 12\\\\\frac{(3x \times 5) - 3x }{5} = 12\\\\15x - 3x = 12 \times 5\\\\12x = 60\\\\x = \frac{60}{12} = 5\\\\Therefore , \ first \ term = 3x = 3 \times 5 = 15\\\\second \term = 3x - 6 = 3( 5) - 6 = 15 - 6 = 9\\\\Third \ term = \frac{1}{5} \times 3x = \frac{1}{5} \times (3 \times 5) = 3$

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