Answer:
-7/20
Step-by-step explanation:
3/10 ÷ -6/7
Copy dot flip
3/10 * -7/6
-21/60
Divide the top and bottom by 3
-7/20
Answer:
20 and 40
Step-by-step explanation:
20 doubled is 40
The difference is 20
Hope this helps! :)
Answer:
B
Step-by-step explanation:
Given
2x + 3y = 36 ← substitute y = 6
2x + 3(6) = 36
2x + 18 = 36 ( subtract 18 from both sides )
2x = 18 ( divide both sides by 2 (
x = 9 → B
Answer:
y = 1.5
Step-by-step explanation:
Given y varies directly as x then the equation relating them is
y = kx ← k is the constant of variation
To find k use the condition x = 48 when y = 6
k =
=
= ![\frac{1}{8}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B8%7D)
y =
x ← equation of variation
When x = 12, then
y =
× 12 = 1.5
Answer:
Step-by-step explanation:
attached is the solution