Question

помогите пожалуйста 779 номер

Answer 1

$-1,5a=5\ a=frac5{-1,5}=-frac5{1,5}=-frac{50}{15}=-frac{10}3=-3frac13\1);-4,5a=-4frac12cdotleft(-frac{10}3right)=frac92cdotfrac{10}3=3cdot5=15\2);7,5a=7,5cdotleft(-frac{10}3right)=-7frac12cdotfrac{10}3=-frac{15}2cdotfrac{10}3=-5cdot5=-25\3);-3a=-3cdotleft(-frac{10}3right)=3cdotfrac{10}3=10\4);-15a=-15cdotleft(-frac{10}3right)=15cdotfrac{10}3=5cdot10=50\5);60a=60cdotleft(-frac{10}3right)=-60cdotfrac{10}3=-20cdot10=-200$
$6);-0,15a=-frac{15}{100}cdotleft(-frac{10}3right)=frac3{20}cdotfrac{10}3=frac12$