In a laboratory, a technician combines a salt solution contained in 27 test tubes. each test tube contains 0.06 liter of the solution. if he divides the total amount into test tubes that hold 0.3 liter each, how many test tubes will he need?

We need 6 test tubes

Step-by-step explanation:

We have given that there are 27 test tubes and each contain 0.06 liters of solution

So total amount of solution

Now he divides the total amount into test tubes which contain 0.3 liters each

We have to find the total number of test tubes

So total number of test tubes

As test tubes can't be in fraction so we need 6 test tubes

i think it would be 42cm

p ÷ r = tan(x)

step-by-step explanation:

given that there is a figure below shows a right triangle: a right triangle is shown with hypotenuse equal to q units and the length of the legs equal to p units and r units.

graph is missing so i will create the graph as per given information.

the angle between the legs having lengths p units and q units is y degrees. the angle between the legs having lengths r units and q units is x degrees.

now we need to find about what is p ÷ r equal to.

so we can use trigonometric ratio tan(x)=[altitude]/[base] to find the value of p ÷ r, because p is the altitude and r is the base.

p ÷ r=tan(x)

hence final answer is p ÷ r=tan(x).