Macy measured the mass of a 69.3 g mouse at 70.0 g. eli measured the mass of a 3867 kg elephant at 3900 kilograms. macy's error was 70-69.3 = 0.7 g-- about half the mass of a paperclip. what was eli's error

18

step-by-step explanation:

ik this stuph and i am smart donkey

step-by-step explanation:

if u want da anser kill your teeser ifu hav wun

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations: