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3 years ago

-2/3 qould be classifide as a whole,natural,rational, and irrational

2 answers:

6 0

Rational, as it is negative, a fraction, but also a fraction whose decimal form is repeating. so, since its a negative fraction, it can't be whole or natural, and since its decimal form is repeating, it's rational and not irrational. Hope that made sense

Edit:whole numbers and natural numbers are pretty much the same, since in nature there aren't really any negative things, like a tree isn't -11 feet tall

erica [24]3 years ago

3 0

-2/3 is not whole, not natural, and not irrational.

From that list, the only thing it is is rational.

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Mattie Evans drove 150 miles in the same amount of time that it took a turbopropeller plane to travel 600 miles. The speed of th

lianna [129]

The speed of the plane is 200 mph.

We start out with the formula d=rt, where d is distance, r is rate (speed) and t is time. We know the time is the same for both vehicles, so we will solve this formula for t:

d=rt

Divide both sides by r:
d/r = t

Since the time is the same, we will have a proportion in the form

d/r = d/r

The speed of the car is x, and it travels 150 miles. The speed of the plane is 150 faster than x, or x+150, and it travels 600 miles:

150/x = 600/(x+150)

Cross multiplying we have:
150(x+150) = 600*x
150x + 22500 = 600x

Subtract 150x from both sides:
150x + 22500 - 150x = 600x - 150x
22500 = 450x

Divide both sides by 450:
22500/450 = 450x/450
50 = x

The speed of the car is 50, and the speed of the plane is 50+150 = 200

7 0

3 years ago

Kolby decided he wanted to go to the amusement park. The amusement park charges $8.00 for entry and $1.40 for each ride.

Charra [1.4K]

Part A: y=mx+b where m is the slope and b is the constant. $8 for entry is the constant, at is wont change during our equation. $1.4 is our slope as its the cost per ride. r is going to be our x. So our equation will be 1.40r + 8

Part B: Now that we know the amount of money, we can place the $26 for y. So lets solve now with our new equation of:

26 = 1.4r + 8

26 - 8 = 1.4r

18 = 1.4r

18 / 1.4 = r

12.85 = r

Obviously he cant ride 12.85 rides. Typically we round up, but to say he rides 13 rides means he has to have $26.2, which we know he does not have. Therefore, we say that he can ride 12 rides.

Quick math check:

1.4(12) + 8 = $24.8 which is less then $26.

I hope this helps! :)

7 0

3 years ago

Can anyone help with this question?

Nostrana [21]

If you alter the "c" value, then you are moving the graph up (or down if c is negative).

Since you are shifting the graph up, the y-intercept ("h" in your graph) will move up.

Since you are shifting the graph up, then the maximum will shift up.

Since you are shifting the graph up, then the x-intercept ("t" in your graph) will increase (move to the right).

Answer: K

4 0

3 years ago

In a game the player wins if he rolls a 6 on a number cube. If the number cube is rolled 18 times, then what is a reasonable pre

SVETLANKA909090 [29]

If the number cube is rolled 18 times, then the number of unsuccessful rolls = 90 unsuccessful rolls.

Step-by-step explanation:

step 1: A cube has six faces and each face is numbered from 1 to 6.

step 2: The win in the game requires the number 6, when a cube is rolled.

step 3: On rolling a cube, the outcomes are (1,2,3,4,5, and 6).

step 4: Out of these outcomes, 5 are unsuccessful rolls (1,2,3,4,5) and 1 is a successful roll (6).

step 5: If the cube is rolled 18 times,

then the number of unsuccessful rolls = 18 * 5 unsuccessful rolls

= 90 unsuccessful rolls.

8 0

3 years ago

The random numbers below represent 15 trials of a basketball simulation conducted using a spinner numbered 0–8. 76645, 46757, 28

mote1985 [20]

Answer: Option D.

Step-by-step explanation:

Out of the 15 simulations, the number with a 1 in them is 7. (are the sets of 5 shots that have at least one 3-pointer)

So out of 15 sets, 7 of them have at least one 3-point in them.

the experimental probability is p = 7/15.

So the correct option is D.

4 0

3 years ago