Question

6. Diana thought of a number. She multiplied it by 3. Then she subtracted
16 from the product and the result obtained is divided by 5. Use mapping
to write this as a function. Diana's answer was -1.1. Use inverse function
to work out the number Diana thought of. Show all your calculations.​

Answer 1

HOPE IT HELP YOU ....................

Answer 2

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soo,

$\frac{(3x - 16)}{5} = - 1.1 \\ 3x - 16 = - 1.1 \times 5 \\3x - 16 = - 5 .5 \\ 3x = - 5.5 + 16 \\ 3x = 10.5 \\ x = 10.5 \div 3 \\ x = 3.5$

see, I solved it! FOR FREE

T^T.