4x - 3 = 9
4x = 9 + 3
4x = 12
x = 3
hope that helps, God bless!
Answer: 2.11 s
Step-by-step explanation:
Given
Equation of rockets height is given by
Height will be zero once the rocket lands on the ground
So, we can write
50/100
25/50
1/2
I hope this helps.
Answer: 80$
Step-by-step explanation:
Step-by-step explanation:
We have been given that David, Egil and Frances share money in the ratio 2:7:9.
Let 2x, 7x and 9x be the amounts of money that David, Agil and Frances get respectively.
We are told that Frances gets $80 more than David. So we can write this information in an equation as:
9x=2x+80
Now let us solve for x.
9x-2x=80
7x=80
x=\frac{80}{7}
Now let us substitute x=\frac{80}{7} in 7x (amount of money that Egil gets).
\text{ Amount of money that Egil will get}=7\cdot \frac{80}{7}
Upon cancelling out 7 from numerator and denominator we will get,
\text{ Amount of money that Egil will get}=80
Therefore, Egil will get $80.
