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3 years ago

Which expression is equivalent to 24 + 15?

Mathematics

2 answers:

seraphim [82]3 years ago

6 0

Answer:

23 + 14

Step-by-step explanation:

Its equivalent.

9966 [12]3 years ago

3 0

1+38 would be equivalent

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Jon ran around a track that was 1/8 of a mile long,he ran around the track 24 times,how many miles did Jon run

Sonbull [250]

Hi there

So, if the track is 1/8 of a mile, let's call every lap a "one-eighth mile" run. We know John ran 24 laps, or that he ran 24 "one-eighth miles," just consecutive, one right after another. Let's stop worrying about rates or tricks or math for a second, and just ask: how many real miles is 24 "one-eighth" miles? We know it's less than 24---a lot less, since you have to go around 8 times just to get to 1 mile. Well wait, if we go around 8 times, we get 1 mile. That means if we go around 28, or 16 times, we get 2 miles; And let's just think to the next full mile---if we go 38, or 24 times, we get 3 miles. He did go around 24 times, so he must have run 3 miles on a 1/8 track.

Division and multiplication are inverses of each other. So we solved this by looking for an intuition for how many full miles corresponded to how many laps, with a bunch of steps of multiplication. But you can cut right to the chase and solve it faster with division---24 laps * 1 mile per 8 laps, means:

total distance = 24 Lap (1 mi / 8 Lap) total distance = 24/8 total distance = 3

6 0

3 years ago

Use synthetic division to solve (2x^3+4x^2-35x+15)/(x-3). What is the quotient?

amm1812

Answer:

the quotient is 2x^2+10x-5

5 0

3 years ago

What number line shows the solution in the inequality -2x + 4 > 8

Kruka [31]

Answer:

Step-by-step explanation:

x<=-2

8 0

3 years ago

Suppose there are 5 students in a room. The mean age is 20.2 20.2 years, and the median age is 19 19. If the youngest person lea

attashe74 [19]

Answer:

Step-by-step explanation:

If the youngest person leaves and is not replaced by another person, it means the mean age is no longer be 20.2 and the median is no longer is 19.

There are 4 students left, so

Mean: will inscrease, when number of terms descrease (only 4)

Media: will descrease, when we have to calculate the average value for term number 2 and 3, not only term number 3 before the youngest person leaves.

3 0

3 years ago

Graph the function with the given domain then identify the range of the function

alexira [117]

When the domain is ≥ to 0, that basically means that x must be ≥ 0.
Imagine what that looks like.
It would just be the right side of the coordinate plane, right? Because the left side would have negative x values.

We're basically just going to be graphing the line $y=3x-2$ , except only the part on the right side of the coordinate plane because of course x ≥ 0.

When you have an equation in the form of $y=mx+b$ , $b$ is going to be the y-intercept (the point where the line intersects the y-axis) and $m$ is going to be the slope.

Since the y-intercept is -2, draw a point at (0, -2).

Then, use the slope to find another point on the line.
The slope is 3, which as a fraction would be $\frac{3}1$ .
Slope = rise over run, so basically every change of 1 in x = a change of 3 in y.
Draw a point 3 up and 1 over from (0, -2). (at (1, 1))

Then draw a line through the two points we have graphed. Don't draw past the y-axis on the left side, because of course x ≥ 0.

And there you go!

The range of the function is basically the possible values y can have.
Well, since it's not going any lower than the y-intercept (0, -2), the range is ≥ -2.

6 0

3 years ago