Ado, Ben and Kolo are aged 12, 14 and 20 respectively. They share N690 in the ratio of
their ages. How much does each get?

b

step-by-step explanation:

the word superfluous means unnecessary

15 batches are the most you can make

step-by-step explanation:

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

180-142=38 for the acute angle next to the entry

90+38=128

180-128=52

a=52

step-by-step explanation: