Answer:
36 inches
Step-by-step explanation:
7 * 2 = 14
11 * 2 = 22
14 + 22 = 36
Write out all the solutions from 1 to 10 and add them together
(1^2+3(1)-2)=2
(2^2+3(2)-2)=8
" = 16
" = 32
" = 38
" = 52
" = 68
" = 86
" = 106
" = 128
Add them together: 530
Hope I helped :)
Answer:
i) 20m/s
ii) 4s
iii) 144m
iv) 2 m/s
Step-by-step explanation:
Please see attached picture for full solution.
(15(.17)+.29x)/(15+x)=.23
2.55+.29x=3.45+.23x
.06x=.9
x=15
So 15L of the 29% solution was added to the 15L of 17% solution to make
30L of 23% solution.
X/90 = 200/100 is/of = %/100
so cross multiply 90 and 200 and x and 100
giving you 18000 = 100x
divide both sides by 100
180=x
