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Mathematics, 11.01.2021 19:40 asalaslex133369

A chemist mixed 5 mL of Solution A with every 3 mL of Solution B to make a new solution with a new concentration. Which ratio of mL of Solution A to ml of Solution B will make
new solution with the same concentration? 6.4C
O A 13:20
OB 6:4
C 40:26
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ansver
Answers: 2
ansver
Answer from: Quest

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)

ansver
Answer from: Quest

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=\sqrt{(9-6)^{2} +(12-6)^{2} } \\=\sqrt(45)=3\sqrt(5)

side j'k'=distance between j' and k'

=\sqrt{(3-2)^{2} +(2-4)^{2} } \\=sqrt(5)

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl

ansver
Answer from: Quest

there is nothing below so i cannot

step-by-step explanation:

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