Step-by-step explanation:
formula: gram of solute/gram of solution X 100
so 150/400 X 100 is <u>3</u><u>7</u><u>.</u><u>5</u><u>%</u><u> </u><u>of</u><u> </u><u>KNO3</u>
Here are the solutions. See the attachment. I've color-coded for clarity.
Hmm, let's see. Well a triangle's dimensions add up to 180. If both sides given add up to 14. Simply subtract 180 by 14. You get, 166. If I'm wrong, feel free to correct me on that :)
Answer:40Step-by-step explanation:
x + 5 and 4x^2
Multiply the exponent of x by 2giving
The answer is
x^2 evaluates to
Multiply a and 5
Multiply a and 1
The a just gets copied along.
The answer is a
a
5*a evaluates to 5a