..... so it is 4.06 cm^3 of salt (not gm)
This assumes 3.5 % salt by volume.....
As a cube, each side (of which there are 6) has the same area = 7 x 7
there are 6 sides 7 x 7 x 6 = 294 ft^2
First write out the terms of the 'zeros'
(x +1)(x+1)(x-6) then multiply it all out
(x^2 + 2x + 1 )(x-6)
x^3 - 6x^2 + 2x^2-12x+x - 6 then gather 'like' terms ' and place them in descending order of exponents
x^3 - 4x^2 - 11x - 6
When you do a calculation with numbers of different sig figs, the answer should always be the same number of sig figures as the least precise one.....in this case 5.45 THREE significant figures in the answer.
Kilogram is a weight (1000 grams - basically 2.2 lbs) kg/s is a measure of weight per second - like the flow of water through a spigot
Your question has the answer w + 33d = 420
Did you leave out a 'w' or a 'd' in this part??? 420/280 = 3
27x <= 81 just divide both sides by 27
x <=3
3.5 % of 125 = 4.06 gm of salt 125 - 4.06 = 120.63 gm of water
The ratios are 1:2:3 and there are 3 pieces total
1+2+3 = 6 6m/6 = 1 so the segments will be 1x1 = 1 m 2x 1= 2m and 3x 1= 3m
