Question

Hi can someone help me with this please

Answer 1

Look at explanation.

Explanation:

10*10 = 100

25 = 100/4

7*3+3=25-1

21+3=25-1

24=24

6*3=16/2

18 is not equal to 8

27 - 20 = 9-2

7 = 7.

Answer 2

(a) False

(b) True

(c) True

(d) Tue

(e) False

(f) True

Explanation:

`\large \boldsymbol{\sf (a)\ 15 + 5 = 30}`

`\large \boxed{\begin{minipage}{2.2 cm}\begin{aligned}\sf 15 + 5 & = \sf 30\\\sf 20 & = \sf 30\end{aligned}\\\\\implies \textsf{False}\end{minipage}}`

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`\large \boldsymbol{\sf (b)\ 5 (7) - 3 = 32}`

`\large \boxed{\begin{minipage}{2.48 cm}\begin{aligned}\sf 5 (7) - 3 & = \sf 32\\\sf 35 - 3 & = \sf 32\\\sf 32 & = \sf 32\end{aligned}\\\\\implies \textsf{True}\end{minipage}}`

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`\large \boldsymbol{\sf (c)\ 25 = (10^2)/(4)}`

`\large \boxed{\begin{minipage}{1.8 cm}\begin{aligned}\sf 25 & = \sf (10^2)/(4)\\\sf 25 & = \sf (100)/(4)\\\sf 25 & = \sf 25\end{aligned} \\\\\implies \textsf{True}\end{minipage}}`

..................................................................................................................................................

`\large \boldsymbol{\sf (d)\ 7 (3) + 3 = 5^(2) - 1}`

`\large \boxed{\begin{minipage}{3.2 cm}\begin{aligned}\sf 7 (3) + 3 & = \sf 5^2 - 1\\\sf 21 + 3 & = \sf 25 - 1\\\sf 24 & = \sf 24\end{aligned}\\\\\implies \textsf{True}\end{minipage}}`

..................................................................................................................................................

`\large \boldsymbol{\sf (e)\ 6 (11 - 8) = (16)/(2)}`

`\large \boxed{\begin{minipage}{2.8 cm}\begin{aligned}\sf 6 (11 - 8) & = \sf (16)/(2)\\\sf 6 (3) & = \sf 8\\\sf 18 & = \sf 8\end{aligned}\\\\\implies \textsf{False}\end{minipage}}`

..................................................................................................................................................

`\large \boldsymbol-9`

`\large \boxed{\begin{minipage}{3.88 cm}\begin{aligned}\sf 3^3 - 4 (5) & = \sf |-9| - 2\\\sf 27 - 20 & = \sf 9 - 2\\\sf 7 & = \sf 7\end{aligned}\\\\\implies \textsf{True}\end{minipage}}`