Verified answer

Explicação passo-a-passo:

6.

[tex] \frac{15 \times 13}{2} [/tex]

[tex] \frac{195}{2} = 97.5[/tex]

7.

[tex] \frac{45}{100} \times 235[/tex]

[tex] \frac{10575}{100} = 105.75[/tex]

B)

[tex] \frac{18}{100} \times 450[/tex]

simplificando

[tex] \frac{18}{10} \times 45[/tex]

[tex] \frac{810}{10} = 81[/tex]

8.

[tex] \frac{47}{100} 190[/tex]

Simplificando

[tex] \frac{47}{10} \times 19[/tex]

[tex] \frac{893}{10} = 89.3 + 190 = 279.3[/tex]

B)

[tex] \frac{36}{100} \times 350[/tex]

simplificando

[tex] \frac{36}{10} \times 35[/tex]

[tex] \frac{1260}{10} = 126 + 36 = 162[/tex]

C)

[tex] \frac{29}{100} \times 545[/tex]

[tex] \frac{15805}{100} = 158.05 - 545 = 386.95[/tex]

D)

[tex] \frac{49}{100} \times 318[/tex]

[tex] \frac{15582}{100} = 155,82 - 318 = 162,18[/tex]