Answer:
8
Step-by-step explanation:
Varies directly think y=kx
Varies indirectly think y=k/x
We have first option so y=kx
x=6 and y=15 means we have 15=k(6)
So k=15/6 or reducing gives=5/2
So we just found our constant of proportionality, this number never changes. It stays the same no matter what x or y they give you...
So the equation is y=5/2 *x
Now what is x if y=20
Plug in 20=5/2 *x
So x=20*2/5=40/5=8
1. -3/2
2. -1/2
3. 1.3
4. 1 1/2
Answer:
A. 30 cm
Step-by-step explanation:
The surface area of a 14-inch pizza is 3.14 x 49 (7 x 7 = 49) = 153.86 square inches of surface area
The answer in simplified form is 3:7. Therefore the answer is B.
Answer:
21 sweets
Step-by-step explanation:
Colm : Gaz
4 : 3
4 units = 28
1 unit = 28 ÷ 4 = 7
3 units = 7 x 3 = 21 sweets
