Answer:
x=3 and y=1
Step-by-step explanation:
First find the deteminant
That is ad-bc
ᵃ ᵇ
ᶜ ᵈ
Answer:
3.5 pounds
Step-by-step explanation:
divide the mass by 16
Answer:
1 : 20
Step-by-step explanation:
ratio of teachers : students = 12 : 240 ( divide both parts by 12 )
= 1 : 20
Answer:
20
Step-by-step explanation:
Answer:
It will cost $512.73
Step-by-step explanation:
9 in by 6 in sandbox cost $228
i.e., 9*6 = 54 in²
54 in² cost $228
1 in² will cost $228/54
≈ $4.22
If the new dimension is 13 1/2 in by 9 in
then area will be 13 1/2*9
27*9/2 = 121.5 in²
The cost of 121.5 in² will be
121.5*4.22 = $512.73
