If A varies directly with z, and A is 30 and z is 5, then when z is 1, A is 6.
z: 5 ÷ 5 = 1
A: 30 ÷ 5 = 6
Then, when z is 1, A is 6
So, when z is 9, A is...
z: 1 × 9 = 9
A: 6 × 9 = 54
A is 54
Answer:
Answer is – 3
Step-by-step explanation:
expand the expression using ( a – b) ( a + b) = a² –b²
( 3 ) ² – ( 6) ² *remember to place your square roots inside the brackets my phone doesn't have one*
then simplify the radical
3–6 = – 3
Answer:
I'm sorry but the document says "doesn't exist".
Step-by-step explanation:
I hope this helps! Have a great rest of your day!
Put 1st equation into second
-2x -(x/2 - 10) = 5
-2x -1/2x + 10 = 5 combine like terms
-2.5x + 10 - 10 = 5 - 10
-2.5x = -5 divide both sides by 2.5
x = 2
