Question

Plsss ex 5 !!!!!!!!!!!!!!!!!!!urgent!!!!!!

Answer 1

Exercițiul 5 (a)

${2}^{n} \times {5}^{n - 1} = 2000$
${2}^{n} \times {5}^{n} \times {5}^{ - 1} = 2000$
${2}^{n} \times {5}^{n} \times \frac{1}{5} = 2000$
${(2 \times 5)}^{n} \times \frac{1}{5} = 2000$
${10}^{n} \times \frac{1}{5} = 2000$
${10}^{n } = 10000$
${10}^{n} = {10}^{4}$
$n = 4$