X = 8
y = 4 + x + 6
(Replace the varibales)
y = 4 + 8 + 6
(Add)
y = 18
So the value of y is 18.
Total marks of the 23 students = 23 * 75 = 1725
Total marks of that two students = 93 + 78 = 171
So, remaining marks will be: 1725 - 171 = 1554
Their average would be: 1554 / 21 = 74%
So, your final answer is 74%
Hope this helps!
The solution for the problem:
let x be the travel time of Dave
x + 120 be the travel time of Wanda
using the distance formula which is: speed * travel time = distance (which will be the same for both Wanda and Dave)
10x = 5(x+120)
10x = 5x + 600
5x = 600x = 120
Dave will catch up after 120 seconds.
Answer: X = 34
Step-by-step explanation:
Let's solve your equation step-by-step.
x+30=2x−4
Step 1: Subtract 2x from both sides.
x+30−2x=2x−4−2x
−x+30=−4
Step 2: Subtract 30 from both sides.
−x+30−30=−4−30
−x=−34
Step 3: Divide both sides by -1.
−x
−1
=
−34
−1
1/2 *30*12=180
The area of the triangle is 180 meters squared
Hope this helped!
