A=(sarı, ev) B=(s, a, r, ı, e, v) yukarıda verilen kümelere göre AUB aşağıdakilerden hangisidir? A). (sarı, ev) B). (s, a, r, ı, e, v) C). (sarı, ev, s, a, r, ı, e, v) D). (sa, rı, ev, s, a, v) lütfen sallamayın bilmeyen yazmasın ayrıca saçma cevaplar vermeyin lütfen yoksa bildireceğim 6. Sınıf kümeler konusundan bir soru matematik yaparsanız sevinirim

let soccer = x and golf = y

part a

1st equation: x + y = 125

2nd equation: x = y +45

part b

replace x in the 1st equation with the 2nd one:

y + 45 + y = 125

simplify:

2y + 45 = 125

subtract 45 from each side:

2y = 80

divide both sides by 2:

y = 80/2

y = 40

she plays golf for 40 minutes.

part c

no because she plays soccer for 45 minutes longer than golf 40 +45 =   85 minutes, not 80 minutes.

step-by-step :

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

the answer is -6

step-by-step explanation:

the answer is -6 because its next to the variable m