Answer:
wheres the question
Step-by-step explanation:
Answer:
A.
Step-by-step explanation:
My teacher taught me a simple equation for these types of problems:
(percent of solution × amount of solution) + (percent of solution × amount of solution) = (percent of solution × total amount of solution)
in simple terms: %amount + %amount = %total amount
We know don't know how much gallons of 60% solution we need so it will be represented as x. We dont know the total amount either so it would have to be both solutions added together so 50 + x. Now lets solve:
(0.60)(x) + (0.24)(50) = (0.50)(50 + x) simplify/ distribute
0.6x + 12 = 25 +0.5x get all xs on one side and numbers on other
0.1x + 12 = 25
0.1x = 13 divide both sides by 0.1 to find x
x = 130
You need 130 gallons of 60% solution.
Answer:
180
Step-by-step explanation:
Multiply 144 by the reciprocal of 
, that is
The reciprocal of is 
= 
, then
× 144 = 
= 180
Well the radian is the measure of the radius
this line measure is then ligned up to the circumference
mearuse of 1 raidan is always equal to the measure of the radius therfor the true statements are
ratio of arc legnth to r is always equal to 1
I'm not sure what 'if the measure of is'
but I think the answer is
if the measure of is 1 radis, than the arc legnth is r since r reaprensents radius
so first and third choice are correct
