Se em certo restaurante a comida custa R$ 30,00 por kg, quanto custarão 4 kg dessa comida?
b) Se 5 operários levantam um muro em 10 dias, quantos operários serão necessários para levantar o
mesmo muro em 2 dias?

c) Um automóvel está a uma velocidade de 50 km/h e gasta duas horas para chegar a seu destino.
Esse mesmo automóvel gastaria quantas horas se estivesse a 75 km/h?

d) Se 18 operários produzem 378 peças por dia de determinado produto, quantas peças seriam
produzidas se essa linha de produção contasse com 25 operários?

Shane can shovel the driveway in 4 hours, but if his sister it would take 2 hours. how long would it take taylor to shovel the driveway alone

In a test for esp (extrasensory perception), the experimenter looks at cards that are hidden from the subject. each card contains either a star, a circle, a wave, a cross or a square.(five shapes) as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. when the esp study described above discovers a subject whose performance appears to be better than guessing, the study continues at greater length. the experimenter looks at many cards bearing one of five shapes (star, square, circle, wave, and cross) in an order determined by random numbers. the subject cannot see the experimenter as he looks at each card in turn, in order to avoid any possible nonverbal clues. the answers of a subject who does not have esp should be independent observations, each with probability 1/5 of success. we record 1000 attempts. which of the following assumptions must be met in order to solve this problem? it's reasonable to assume normality 0.8(1000), 0.2(1000)%30 approximately normal 0.8(1000), 0.2(1000)% 10 approximately normal srs it is reasonable to assume the total number of cards is over 10,000 it is reasonable to assume the total number of cards is over 1000

Will mark ! (10 points also! ) if x varies inversely with y and x =6 when y= 10, find y when x=8 a. y=4.8 b. y=7.5 c. y=40/3 d. y=4/15