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2 years ago

Help me to solve this ✨

Mathematics

2 answers:

ddd [48]2 years ago

6 0

Answer:

$here \: 3x - 50 = 2x + 30 \\ x \: terms \: togather \: \\ 3x - 2x = 30 + 50 \\ x = 80 \\ thank \: you$

Ivan2 years ago

4 0

$\\ \sf\longmapsto 3x-50=2x+30$

$\\ \sf\longmapsto 3x-2x=30+50$

$\\ \sf\longmapsto x=80$

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Answer:

Option B is correct = $0.3 \times 81$

Step-by-step explanation:

The complete question is: Which of the following options have the same value as 30% of 81?

Group of choices is:

(A) $\frac{30}{100}\times 81 \times 100$

(B) $0.3 \times 81$

(D) $\frac{3}{10}\times 81 \times 10$

(E) $30 \times 81$

Now, the expression given to us is 30% of 81.

Simplifying the above expression we get;

30% of 81 = $\frac{30}{100} \times 81$

= $\frac{3}{10} \times 81$ = $0.3 \times 81$

Now, we will solve each of the given options and then see which option matches with our calculation.

Option (A) is given;

$\frac{30}{100}\times 81 \times 100$ = $30 \times 81$

This doesn't match with our answer, so this option is not correct.

Option (B) is given;

$0.3 \times 81$

This matches with our answer, so this option is correct.

Option (C) is given;

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This doesn't match with our answer, so this option is not correct.

Option (D) is given;

$\frac{3}{10}\times 81 \times 10$ = $3 \times 81$

This doesn't match with our answer, so this option is not correct.

Option (E) is given;

$30 \times 81$

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Help me to solve this ✨​

Help me to solve this ✨