Three tenths of a number is 2.1. determine the number .

Ok so... Let x be 2.1

x = 2.1 / (3/10)

multiply both the numerator and denominator by 10 which gives

x = 21/3 SO the answer is

x = 7 Yay!!! Have a god day

it would take 7/10 of an hour too fill the pool.

step-by-step explanation:

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).