Answer:
Step-by-step explanation:
let x be the number
6+1/5x=12
1/5x=12-6
1/5x=6
x=5*6
x=30
check: 6+(1/5*30)=6+6=12
Answer:
it would be 6 and 10
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
Answer:
a=15
Step-by-step explanation:
By pythagoras' theorem
25²=20²+a²
625=400+a² group like terms
a²=625-400
a²=225
therefore a=15
Answer:
The trestle meets ground level at 0.875 units and 9.125 units
Step-by-step explanation:
Poorly formatted question.
The given equation is:
Required
The point where the trestle gets to the ground level
To do this, we set
So, we have:
Multiply through by -1
Solve using quadratic formula:
Where:
So, we have:
Solve the fraction
Split