Answer:
the answer to the question is 3.2
Last year He was 7 years old.
His father is 4 times the age 7 x 4 = 28
Last year his dad was 28, so this year he is 29.
Combined age this year = 29 + 8 = 37
51 - 37 = 14 years
14/ 2 people = 7 years
8 + 7 = 15
29 + 7 = 36
15 + 36 = 51
It will take 7 years.
Answer:
(a). Music and dance.
(b). Three students.
(c). Hong, Ryan, Lena and Mai
Option 1- She made $17 profit
12-10=2. 8-4=4. 19-11=8. 6-3=3
2+4+8+3= 17
A = L * W
A = 135
L = 2W - 3
135 = W(2W - 3)
135 = 2W^2 - 3W
-2W^2 + 3W + 135 = 0
(-2W - 15)(W - 9) = 0
-2W - 15 = 0
-2W = 15
W = -15/2....not this one because it is negative
W - 9 = 0
W = 9 <=== the width is 9 ft
L = 2W - 3
L = 2(9) - 3
L = 18 - 3
L = 15 <=== length is 15 ft
