Answer:
Step-by-step explanation:
hello :
19=3s+4
19-4 = 3s+4-4
3s=15
s=15/3
s=5
Length - l
Width - w
Given,
Perimeter = 60
2(l +w) = 60
l + w = 30
l = 30 - w
Given,
l = 3w
30 - w = 3w
4w = 30
--- w = 7.5
--- l = 3w = 3 * 7.5 = 29.5
Hence, the length of the rectangle is 29.5 and the width is 7.5
3.82 is the answer for that but what is the unit of measurement
Iván used to measure the catsup the same as those given
1 Calcium ion / formula unit times 0.5 moles CaCl2 x 6.02 x 10^23 =
<span>3.01 x 10^23 Calcium ions.</span>