Answer:
20
Step-by-step explanation:
Substitute x in y = 4x for 5. So now the equations stands as y = (4)(5). 4 times 5 equals 20
Step-by-step explanation:
We can calculate the value of y by using the Euclidean theorem
y^2 = 20 × 4
y^2 = 80
y = 4√5
She bought 11 shirts and 4 pants
Let x= pants
Let y= shirts
x+y=15
x+7=y
x=y-7
(y-7)+y=15
2y=22
y=11
x+y=15
11+x=15
x=4
Therefore, Elaine bought 11 shirts and 4 pants
Answer:
tui kobic tor hada kobic furi
