O matemático Euler desenvolveu a seguinte formula: F + V = A +2 que relaciona o n° de faces, arestas e vértices de um poliedro. Aplicando essa fórmula um poliedro que tem 10 faces e 20 arestas possui: *

in if you ask questions, the points are taken from your total and given to the one who answered it..

so if i have 30 points and i ask a question for 5 points, then when someone asks a question i will lose 5 points and the answerer earns 5

happy to

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.

x = 12

y = 1

for the points!