7,14,21,28,35,42,49,56,63,70,77,84,91,<span>98,105,112,119,126,133,140,147,154,161,168 that is multiples of 7
</span>20<span>, 40, 60, 80, 100, 120, 140 that is some multiples of 20
</span>hope it helps you
Answer:
Step-by-step explanation:
Let
m-----> the amount of minerals
w-----> the number of workers
we know that
so
-----> the relationship represent a proportional variation
Answer:
b) x=4
Step-by-step explanation:
Step-by-step explanation:
(25x+8)°+(9x+2)°=180--->(1)(sum of angles on a straight line
(7y+5)°=(9x+2)°------------->(2)(vertical angles)
25x°+8°+9x°+2°=180°
34x°=170°
x=5°
from equation (2) substitute for x=5°
7y°+5°=9x°+2°
7y°+5°=9(5)°+2°
7y°=47°-5°
7y°=42°
y=6°
(x, y)=(5°,6°)
Answer:
-12,9
Step-by-step explanation:
