Answer:
Step-by-step explanation:
In order to solve this, we are trying to find the value of 
. Basically, is a placeholder for a number that is unknown. Some number minus 3 is equal to 21.
Our goal is to find . To do this we want to isolate on one side of the equation
Let's add 3 to both sides.
Hope this helped!
Answer:
the numbers are 20 and 24
Step-by-step explanation:
The numbers are in the ratio 5 : 6 = 5z : 6z , where z is a multiplier
The numbers sum to 44, thus
5z + 6z = 44
11z = 44 ( divide both sides by 11 )
z = 4
Hence
5z = 5 × 4 = 20
6z = 6 × 4 = 24
The two numbers are 20 and 24
Answer:
y = ( x + 2)( x + 6)
Step-by-step explanation:
Answer: 60 cm²
Step-by-step explanation:
This is pretty simple, we know AB is 12 cm and DE is 4 cm. We know ABC has a total of 180 square centimeters. So...
12 ÷ 3 = 4
180 ÷ 3 = 60
The answer is 60 cm²
I hope this helps!
8-9n=15 I believe
At least I hope
