15. A science teacher has a supply of 20% saline solution and a supply of 50% saline solution.
How much of each solution should the teacher mix together to get 60 mL of 28% saline
solution for an experiment?
(1 point)
16 mL of the 20% solution and 44 mL of the 50% solution
44 mL of the 20% solution and 16 mL of the 50% solution
16 mL of the 20% solution and 16 mL of the 50% solution
044 mL of the 20% solution and 44 mL of the 50% solution

x=17

step-by-step explanation:

solve 3x-24=x+10

then that makes it 2x=34 because you subtract an x from both sides to get rid of the one on the right, and then you add 24 to both sides to get rid of the 24 on the left

divide by both sides by 2 to get your answer so that you can get your answer

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐

.bjbjk.b,j.l.

step-by-step explanation:

step-by-step explanation:

f(x)=2x^2 -1 

translation is a function transformation that transform the function in a way of translating. by translating the function its graph is moved  up an down. moving the function f(x) 2 units to the left will be the new function g(x) with the equation: g(x)=f(x+2)=2(x+2)^2 -1