Algebraic expression s pls help fast .... please ............​

Since the distances were the same you can find the average speed directly by adding the speeds then dividing by 2. No need to weight anything.

If we’re considering speed regardless of direction, the average speed is:

(24 + 16) / 2 = 40 / 2 = 20mph

However if direction matters, then one number has to be negative since the directions are opposite:

(24 - 16) / 2 = 8 / 2 = 4mph (in the positive direction)

Depending on the context, either of these could be your answer.

Answer:

19.2

Step-by-step explanation:

You have to trust me, this answer is correct. But here's my solution:

With the formula

Distance=Speed multiplied by Time, we can infer that Speed=Distance/Time.

But we only have one variable (Speed) in the two we need (Speed and Time), we have to pretend we have both variables. You can put the time as 1 hour, because that's the most basic unit. Note that this strategy will also work with 2 hours, 3 hours, or any measure of time.

So now for distance, let's see how fast a car can travel 24 miles. When going at 24 mph, then it'll take 1 hour. With 16 mph, then it'll take 1 hour and 30 minutes, so 1.5 or 3/2 hours.  

Now we have the distance, which is 2 times 24 (Because the 24 mph and 16 mph both traveled 24 miles), equaling 48, and time, which is 1 hour plus 1.5 hours, which is 2.5 hours.

Now we use the formula Speed=Distance/Time, with 48/2.5=19 1/5 or 19.2

DUBS

(Please consider giving a Brainliest. I spent lots of time on this, and it's honestly the best answer out of all!)

Answer:

y=x+11；

Step-by-step explanation:

Let's say the direct equation is y=kx+b;

Plug in the two points to get the system：

[tex]\left \{ {{16=5k+b} \atop {18=7k+b}} \right.[/tex]

So k is equal to 1, b is equal to 11，

so y=x+11；

[tex]\sf \longmapsto \frac{1}{5} x + \frac{1}{2} > \frac{4}{5} [/tex]

[tex]\sf \longmapsto \frac{1}{5} x + \frac{1}{2} - \blue{\frac{1}{2 }}> \frac{4}{5} - \blue{ \frac{1}{2} }[/tex]

[tex]\sf \longmapsto \frac{1}{5} x > \frac{3}{10} [/tex]

[tex]\sf \longmapsto5 \times ( \frac{1}{5} x) > 5 \times ( \frac{3}{10} )[/tex]

[tex]\sf \longmapsto x > \frac{3}{2} [/tex]

[tex] \boxed{\sf \: x > \frac{3}{2} }[/tex]

Answer:

sin 2θ = -24/25

Step-by-step explanation:

see the below formula of sin x  in terms of tan x

by substituting => -4/3   /  ± √(16/9 + 1)

=> -4/3   /  ± √(25/9)

=> -4/3   / ±  5/3

=> ± -4/5

=> ± 4/5

as theta is in second quadrant is in 2nd quadrant sin value is positive

so sin θ = 4/5 and cos θ = -3/5

now sin 2θ = 2 sinθcosθ

= 2 * 4/5 * -3/5

= -24/25

Answer: 1 hour and 50 min

Step-by-step explanation:

Answer:

Step-by-step explanation:

Can someone tell me what happens in 2 hours

Answer:

same thing as adding 3/5 +3/5

total number of parts in a rectangle is 5

the product is 6/5 or 1 1/5

Answer:

red line

the red line has a slope of -1 by looking at the coordinates,

it also intersects the given point (1,-1)

Step-by-step explanation:

I = $200

T = 4

R = 5.5 = 5½ = 11/2

I = PRT/100

200 = (4 x 11 x P)/(100 x 2)

200 = 22P/100

22P = 20000

P= 20000/22

P= $909.09

Using the information given, it is found that the 95% confidence interval for the proportion of all U.S. adults who experienced depression in that year is (0.075, 0.081).

In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]\alpha[/tex], we have the following confidence interval of proportions.

[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

In which

z is the z-score that has a p-value of [tex]\frac{1+\alpha}{2}[/tex].

3156 out of 40467 adults experienced depression, hence:

[tex]n = 40467, \pi = \frac{3156}{40467} = 0.078[/tex]

95% confidence level

So [tex]\alpha = 0.95[/tex], z is the value of Z that has a p-value of [tex]\frac{1+0.95}{2} = 0.975[/tex], so [tex]z = 1.96[/tex].  

The lower limit of this interval is:

[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.078 - 1.96\sqrt{\frac{0.078(0.922)}{40467}} = 0.075[/tex]

The upper limit of this interval is:

[tex]\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.078 + 1.96\sqrt{\frac{0.078(0.922)}{40467}} = 0.081[/tex]

The 95% confidence interval for the proportion of all U.S. adults who experienced depression in that year is (0.075, 0.081).

A similar problem is given at https://brainly.com/question/16807970

Answer:15

Step-by-step explanation:

x=180-(110+55)=15

Answer:

About $48.72

Step-by-step explanation:

Tip = Cost * 0.xx

Total including Tip = Cost * 1.xx

where xx = the percent tip you want to leave.

☞ 9m

☞ 16m

Formula: A = lw

Whereas:

A = area

l = length

w = width

[tex]a = lw \\ 9 \times 16 \\ a = 144m[/tex]

[tex]\huge\color{pink}\boxed{A = 144m}[/tex]

Answer:

x = 1.6 , y = 13.8

Step-by-step explanation:

y - 3x = 9 ( add 3x to both sides )

y = 9 + 3x → (1)

7x + y = 25 → (2)

Substitute y = 9 + 3x into (2)

7x + 9 + 3x = 25

10x + 9 = 25 ( subtract 9 from both sides )

10x = 16 ( divide both sides by 10 )

x = 1.6

Substitute x = 1.6 into (1)

y = 9 + 3(1.6) = 9 + 4.8 = 13.8

Answer:

Round 28 up to 30, round 232 to 240

30/240 ~=~ 1/8

An approximate is 1/8.

Answer:a) ∠BDE is 60° because ΔBDE is an equilateral triangle with all three angles = 60°.

Step-by-step explanation:

b) ∠CDB = 120° because 180° - 60° = 120°

Answer:

the first, second and fifth ones

Step-by-step explanation:

Answer:

The price was dropped around 15%

Step-by-step explanation:

You will pay $3.15 for a item with original price of $3.70 when discounted 15%. In this example, if you buy an item at $3.70 with 15% discount, you will pay 3.70 - 0.555 = 3.15 dollars.

Answer:

Step-by-step explanation:

You just need tp translate what is written in the two- column proof into paragraph.

Given that the two angles have same measure of 125°, by transitive property we proof that the angles are congruent.

We don't perform any of addition,  division or multiplication operations. We just compare the angle measures and come to conclusion.

This is best described in the paragraph C

Answer:

B - A = 4x - 10

Step-by-step explanation:

B - A

= 9x - 6 - (5x + 4) ← multiply terms in parenthesis by - 1

= 9x - 6 - 5x - 4 ← collect like terms

= 4x - 10

Answer:

4x-10

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

According to the Pythagorean theorem, if you call the 2 legs of a right triangle a and b respectively and call the length of the hypotenuse c, you have:

[tex]a^{2} + b^{2} = c^{2}[/tex]

=> [tex]36^{2} + 10^{2} =[/tex] [tex]hypotenuse ^{2}[/tex]

=> 1396 = [tex]hypotenuse ^{2}[/tex]

=> hypotenuse = [tex]\sqrt{1396}[/tex] (inch)

=> Answer D

Answer:

B

Step-by-step explanation:

Because it starts from the smallest negative prefix to largest

Answer:

D. First, add 32 to both sides, then divide by -16 and flip the sign

Step-by-step explanation:

Taking that the inequality is -16k-32>-48

First you have to get rid of any addition or subtraction, in this case you have to get rid of -32 by adding 32 to each side:

-16k-32+32 > -48 +32

Then you need to divide by -16 and flip the sign because you are dividing by a negative number and if you don't flip the sign the inequality will be false.

[tex]\frac{-16k}{-16} <\frac{-16}{-16}[/tex]

Answer:

12<x<22

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

Answer:

Step-by-step explanation:

6^2+ (59 - 4 ) = 36 + 55 = 91

I'm taking this to mean 11*2 If I am wrong leave a note.

11*2 = 22

91 / 22 = 4.14

Answer: -1

Step-by-step explanation: 4 + (-3) = 1             1 + (-2) = -1