27.96 to the nearest 10th would be 30.00
because anything below 5 you will round down anything on 5 or above five you will round up (29.98=30)
Answer:
Andrew has 9 cars
Step-by-step explanation:
Let's start by defining what our unknowns are and how to name them:
For the number of cars Andrew has: let's use the letter A
For the number of cars Luke has: let's use the letter L
Not write the first sentence in mathematical terms:
"Luke has 4 more than triples the number of cars that Andrew has."
L = 3 * A + 4
The second phrase results on a very simple equation since it just states the number of cars that Luke has:
L = 31
Now we can combine these two equations by replacing the variable "L" in the first equation with the second equation and then solve for A:
L = 3 * A + 4
31 = 3 * A +4
31 - 4 = 3 * A
27 = 3 * A
A = 27/3
A = 9
Therefore, Andrew has 9 cars.
If you plug in the x and y values for the points (X,Y).
Then you are able to solve for the equation by seeing whether or not it equals the Y value.
Ex. Solving 9a.
Step One Equation and Point (2,0) or (X,Y)
![y = ({x})^{2} - 3(x) + 2](https://tex.z-dn.net/?f=y%20%3D%20%20%28%7Bx%7D%29%5E%7B2%7D%20%20-%203%28x%29%20%2B%202)
Step 2 Plug in and solve
![0 = {2}^{2} - 3(2) + 2](https://tex.z-dn.net/?f=0%20%3D%20%20%7B2%7D%5E%7B2%7D%20%20-%203%282%29%20%2B%202)
0=4-6+2
0=0
Done and Answer is Yes it does fit.
Answer:
Jackie can fill 10 containers
Step-by-step explanation:
5x=32+x
4x=32
x=8
so Jackie used 40 cups of water and 8 cups of concentrate to make the orange juice
4 cups equals a quart
so 40/4 = 10
Jackie can fill 10 containers
Answer:
Yes, because 29.5 lies within the interval.
Step-by-step explanation:
Since the given interval of (28, 32) inches has an 80% confidence level. It is plausible to estimate with 80% certainty that the mean height of all adult miniature horses falls within that interval.
A height of 29.5 belongs to the interval:
28≤ 29.5 ≤ 32
Therefore, based on the confidence interval, the belief that the population average height is 29.5 inches is plausible