Zad 11 str 41 klasa 7 matematyka z kluczem W Morzu Bałtyckim jest 0,8% soli, a w Morzu
Adriatyckim 4% soli. Ile wody z Morza Bałtyckiego potrzeba, aby uzyskać tyle samo soli co
z 200 kg wody z Morza Adriatyckiego?

Pliss help

i can't solve unless i know what the line is

step-by-step explanation:

welcome to/p>

ummm seems that u didnt post the attachement !

b

step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 4) and (x₂, y₂ ) = (3, - 5) ← 2 points on the line

m = = = - 3

with m = - 3 and (a, b) = (3, - 5), then

y - (- 5) = - 3(x - 3), that is

y + 5 = - 3(x - 3) → b

b) k’(6, 4); l’(3, 3)

step-by-step explanation:

a 270° clockwise rotation maps every point (x, y) to (y, -x). (it negates the x-coordinate and then switches it and the y-coordinate.)

this means the endpoints of the side congruent to kl, k' and l', would be mapped as:

k'(-4, 6)→(6, 4)

l'(-3, 3)→(3, 3)