Answer:
The number of ways it could be done is:
720
Step-by-step explanation:
It is given that:
There are 10 cars in today’s Grand Prix race.
We have to find the different number of ways these three cars win first second and third places.
That is we have to choose the three cars and arrange them in ways as according to they obtain there ranks.
Hence, we will use the method of permutation since we have to choose three cars and also arrange them according to their order they finished the race and took first, second and third place.
Hence, the number of ways it could be done is:
Here we have n=10 and r=3.
Hence,
Hence, the number of ways it could be done is:
720
Step 1: Rewrite
2.5(6x-4)=10+4(1.5+0.5x)
Step 2: Distribute
Multiply 2.5 by 6 and then do the same to -4. MAKE SURE TO MULTIPLY 2.5 BY NEGATIVE 4 OR THE ANSWER WILL BE WRONG.
You should get:
15x-10=10+4(1.5+0.5x)
Step 3: Combine Like Terms
Look over the left side of the equation. If there are no numbers to combine, go to the right side. 10 and 4 are like terms. You may go ahead and combine them.
You should get:
15x-10=21+7x
Step 5: Combine Like Terms again
Now that you have no like terms on either side of the equation, you will combine them together. Confusing? Let me explain, you have a 15x and 7x on two sides of the equation and they are like terms. Since they are on different sides of the equation, you need to do the opposite of what you'd do if they were on the same side.
You should get:
8x=31
What I did was take the 7x (since its the lesser value) and subtract it by 15x and I got 8x. I then took the -10 and added it to 21.
Step 6: Divide
Now that you have 8x=31, you can simply divide and get your answer.
You should get:
x=3.875
Now, depending on what your problem is asking for, you would either round to the tenths or hundreths place.
There you go!
A.
30+40+50+60= 180
180 divided by 4equals 45
Their fore the answer is A
Answer:
The horizontal distance of the shot from the start is 24 feet and the height of the shot above the ground is 23.08 feet.
Step-by-step explanation:
we have
where
x represents the horizontal distance from the start in feet
h(x) s the height of the shot put above the ground in feet
Determine h(24)
That means ----> The height of the shot put above the ground for a horizontal distance of 24 feet from the start
substitute the value of x=24 ft in the quadratic equation
so
The horizontal distance of the shot from the start is 24 feet and the height of the shot above the ground is 23.08 feet.
The percentage error is 10%