Dwayne drove 18 miles to the airport to pick up his father and then returned home. On the return trip he was able to drive an average of 15 miles per hour faster than he did on the trip there. If the total driving time was 1 hour, then what was his average speed driving to the airport?
Someone please help

Step-by-step explanation:

Step 1 total number of person =450

Step 2 number of people who are alcholic =200

Step 3 now subtract them like: 450 - 200

Answer=200 people are non alcholic

Answer:

1=1/2

2=8 times the square root of 3 over 25     8xsuare root 3/25

3=16

4=7 times square root of 3 over 4    7x square root 3/4

5=square root of 2 over 2

6=square root 3

7=square root 2

8=1/3

9=10/7

Step-by-step explanation:

you can also use algebrator square root calculator!!

Answer:

A

Step-by-step explanation:

All the other options have arrows at the ends. This means they continue forever. A segment starts and stops at points. Line A starts and stops at 2 points.

For every 3 dogs, there are 4 cats.

There are 4 cats and 3 dogs, so that means for every 3 dogs, there will be 4 cats.

For every ___3_____ dogs, there are _____4___ cats.

The ratio is defined as the comparison of two quantities of the same units that indicates how much of one quantity is present in the other quantity.

Given,

ratio of dogs to cats = 3:4

which means there are 3 dogs per 4 cats.

Hence, there are 4 cats for every 3 dogs.

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Using the given table of transforms,

[tex]L\left\{ y'' - y' - 2y \right\} = L\left\{ 1-x \right\}[/tex]

[tex](s^2 Y(s) - sy(0) - y'(0)) - (s Y(s) - y(0)) - 2 Y(s) = \dfrac1s - \dfrac1{s^2}[/tex]

(where Y(s) is the Laplace transform of y(x))

Solve for Y(s) :

[tex](s^2 - s - 2) Y(s) - s = \dfrac1s - \dfrac1{s^2}[/tex]

[tex](s^2 - s - 2) Y(s) - s = \dfrac{s-1}{s^2}[/tex]

[tex](s^2 - s - 2) Y(s) = \dfrac{s-1}{s^2} + s[/tex]

[tex](s^2 - s - 2) Y(s) = \dfrac{s^3 + s - 1}{s^2}[/tex]

[tex]Y(s) = \dfrac{s^3 + s - 1}{s^2 (s^2 - s - 2)}[/tex]

[tex]Y(s) = \dfrac{s^3 + s - 1}{s^2 (s + 1) (s - 2)}[/tex]

Decompose the right side into partial fractions:

[tex]Y(s) = \dfrac as + \dfrac b{s^2} + \dfrac c{s+1} + \dfrac d{s-2}[/tex]

Solve for the coefficients.

[tex]\implies s^3 + s - 1 = as(s+1)(s-2) + b(s+1)(s-2) + cs^2(s-2) + ds^2(s+1)[/tex]

[tex]\implies s^3 + s - 1 = -2 b + (-2 a - b) s + (-a + b - 2 c + d) s^2 + (a + c + d) s^3[/tex]

[tex]\implies \begin{cases}-2b = -1 \\ -2a-b = 1 \\ -a+b-2c+d = 0 \\ a+c+d = 1 \end{cases} \implies a=-\dfrac34, b=\dfrac12, c=1, d=\dfrac34[/tex]

Then

[tex]Y(s) = -\dfrac34 \times \dfrac1s + \dfrac12 \times \dfrac1{s^2} + \dfrac1{s+1} + \dfrac34 \times\dfrac1{s-2}[/tex]

Take the inverse transform and solve for y(x) :

[tex]F(s) = \dfrac1s \implies f(x) = 1[/tex]

[tex]F(s) = \dfrac1{s^2} \implies f(x) = x[/tex]

Using the frequency-shifting property,

[tex]F(s) = \dfrac1{s+1} \implies f(x) = e^{-x}[/tex]

[tex]F(s) = \dfrac1{s-2} \implies f(x) = e^{2x}[/tex]

So, the particular solution to the ODE is

[tex]\boxed{y(x) = -\dfrac34 + \dfrac x2 + e^{-x} + \dfrac{3e^{2x}}4}[/tex]

Answer:

you would still have 10 snles

Answer:

7/15

Step-by-step explanation:

4/5 - 1/3

multiply one side by 3 and the other by 5

12/15 - 5/15

7/15

Answer: 2 x 5 x 5 x 7 = 350. =2¹ x 5²x 7¹

Step-by-step explanation:

Answer:

311 x 27 = 8397

Step-by-step explanation:

first find the factors of your number 8 397 by dividing continuously starting with the smallest value

8397/3 = 2799

2799/3 = 933

933/3   = 311

311/311  = 1

therefore 311 x (3 x3 x3) = 8397

                311 x 27           = 8397

Answer:

50°

Step-by-step explanation:

The missing angle would equal the formula:

180°- a - b= x

a and b are the two angles given.

180- 110 -20 = 50

So the missing angle is 50 °

Answer:

no, she won't have enough money to pay the bill

Step-by-step explanation:

$37.52×15/100

=$5.63

therefore:$37.52 + $5.63

= $43.15

•she wont have enough money to pay the bill as her bill will be $43.15 and she has $40.

Answer:

Jeez this is a big question

Step-by-step explanation:

1. if they are rounded to the nearest 10 that would mean that it is actually

40 * 40

40 * 40 is 1600. The answer for #1 is 1600

2. its just asking what 21 x3 is, 21x3 is 63

3. All you do for this is 20*23

20 * 23 is 460

4. 42 * 31 is 1302

5. 22 * 95 = 2090

6. You do 20x2 which is 40 and then you do 8x2 which is 16

Adding

then you have 40 + 16 = 56

Subtracting

40 - 16 = 24

Multiplying

40 * 16 = 640

Dividing

40/16 = 2.5

7. 33x2 is 66

8. 57* 4 is 228

9. 128 * 11 is 1408 but if you round the 11 to the nearest 10, that would be 10, then if you round the 128 to the nearest 10, that would be 130, and then 130 * 10 is 1300

38 × 41 can be estimated by rounding 38 and 41 to the nearest ten, which gives us 40 and 40. Multiplying these two numbers gives us 1600. So the answer is 1,600.

21 × 3 is equal to 63.

Yusef wants to buy 20 pairs of sneakers to donate to a local shelter. Each pair costs $23. How much money will Yusef spend on all the sneakers? The answer is $460.

The product of 42 × 31 is 1,262.

A basketball team has 22 games this season. At each game, 95 raffle tickets are sold. How many raffle tickets are sold during all 22 games? The answer is 2,090.

Carter rewrites 28 × 2 in expanded form to find the product.

28 × 2

= (20 × 2) + (8 × 2)

The next step to find the product is to multiply the product of 20 × 2 by the product of 8 × 2.

= 20 × 2 + 8 × 2

= 40 + 16

= 56

What is the product of 33 × 2? The answer is 66.

What is the product?

57 × 4

= 228

Marta has 128 stamps. Kelli has 11 times as many as Marta. Marta estimates the total they have altogether by rounding each amount to the nearest ten and then multiplying.

What is the best estimate of 128 × 11 using this method? The answer is 1,300.

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Answer:

15° , 45°, 120°

Step-by-step explanation:

sum the parts of the ratio, 1 + 3 + 8 = 12 parts

the sum of the 3 angles in a triangle = 180° , then

180° ÷ 12 = 15° ← value of 1 part of the ratio, then

3 parts = 3 × 15° = 45°

8 parts = 8 × 15° = 120°

the 3 angles are 15° , 45° , 120°

Answer:

[tex]\frac{2}{3}[/tex]

Step-by-step explanation:

Since we know that [tex]b=\frac{1}{4}[/tex], we can simply substitute [tex]\frac{1}{4}[/tex] for [tex]b[/tex] in the equation:

[tex]\frac{1}{3}b+\frac{7}{12}\\\frac{1}{3}(\frac{1}{4})+\frac{7}{12}\\[/tex]

To multiply fractions, simply multiply the numerators of the multipliers to find the numerator of the resultant, and multiply the denominators of the multipliers to find the denominator of the resultant. Therefore, we multiply 1 x 1, which is 1, and 3 x 4, which is 12. The resultant fraction for the operation of [tex]\frac{1}{3}(\frac{1}{4})[/tex] is [tex]\frac{1}{12}[/tex].

Now, we just need to add the remaining fractions:

[tex]\frac{1}{12}+\frac{7}{12}[/tex]

When adding fractions with the sane denominator, we simply add the numerators. The addition of the numerators in this case is 8, so:

[tex]\frac{1}{12}+\frac{7}{12}=\frac{8}{12}[/tex]

We can still simplify the fraction of [tex]\frac{8}{12}[/tex]. Both the numerator and the denominator are divisible by four, so divide them both by four to get the final, simplified fraction:

[tex]\frac{8}{12}=\frac{2}{3}[/tex]

Answer:

[tex]\frac{23}{12}[/tex]

Alternative forms:

[tex]1.916, 1\frac{11}{12}[/tex]

Step-by-step explanation:

Substitute b = 1/4 into 1/3b + 7/12 :

[tex]\begin{matrix}\underline{1}\\\underline{3}\\4\\\end{matrix}+\frac{7}{12}[/tex]

Calculate

[tex]\begin{matrix}\underline{1}\\\underline{3}\\4\\\end{matrix}+\frac{7}{12}[/tex]

Divide a fraction by multiplying its reciprocal

[tex]\frac{4}{3}+\frac{7}{12}[/tex]

Find common denominator and write the numerators above common denominator

[tex]\frac{4\times4}{3\times4}+\frac{7}{12}[/tex]

Calculate the product or quotient

[tex]\frac{16}{3\times4}+\frac{7}{12}[/tex]

[tex]\frac{16+7}{12}[/tex]

Calculate the sum or difference

[tex]\frac{23}{12}[/tex]

I hope this helps you

:)

Answer:

its A

PLS MARK AS BRAINLESS I MEAN BRAINLIEST :)

Step-by-step explanation:

[tex] \huge{ \rm{Question:}}[/tex]

7. If a figure measures 7 centimeters high, 3 centimeters wide and 2 centimeters deep, what is the volume of the figure?

[tex] \huge{ \rm{Answer:}}[/tex]

The volume of the figure is 42.

Step-by-step explanation:

= 2 x 7 x 3

= 14 x 3

= 42

HOPE THIS HELPS^^

Answer:

50 cents

Step-by-step explanation:

Since 1 dollar is too much, then try 50 cents. Then it worked.

Answer:

-15

Step-by-step explanation:

Answer:

False, every property of a square is not a property of a rectangle. Most of the properties of a square are also a property of a rectangle. If you square root the area of a square, you will get the side length of that square. If you square root the area of a rectangle, assuming the 4 sides of the rectangle are different, you will not get any  of the correct dimensions.

If you have any questions, please let me know in the comments section of this answer! If you could mark this answer as the brainliest, I would greatly appreciate it! :D

Answer:

1.33

Step-by-step explanation:

y2-y1/x2-x1

=11+1/-3-6

=12/-9

=-4/3

=1.33

Answer:

160 dollars

Step-by-step explanation:

if its 10 less you just have to umm think its just adding (sorry i dont know how to explain)

Answer:

9 and 1 fourths

Step-by-step explanation:

Answer:

10 9/16

Step-by-step explanation:

For this equation, we are going to need to multiply these mixed numbers to get our answer. The quickest and easiest way to solve this would be to turn these mixed numbers into improper fractions.

(Important:) To make an improper fraction, multiply the denominator by the whole number, then add the numerator. This becomes your new numerator for your improper fraction.

With that said, we can now turn these into improper fractions. So:

3 1/4 = 13/4 and 13/4.

To find area, we need to multiply L x W (length x width) to get our answer. So:

13/4 x 13/4 = 169/16 = 10 9/16.

I hope that this helps.

Answer:yes!!

Step-by-step explanation:suprisingly this website gives you the tools to get an answer for anything. People will find ur stuff and give an answer, or sometimes multiple people.

Using the normal distribution, it is found that the minimum table clearance required to satisfy the requirements of fitting 95% of men is of 23.6 in.

In a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

In this problem, for men's knee heights, we have that:

The 95th percentile is X when Z has a p-value of 0.95, so X when Z = 1.645, then:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]1.645 = \frac{X - 21.8}{1.1}[/tex]

[tex]X - 21.8 = 1.1(1.645)[/tex]

[tex]X = 23.6[/tex]

The minimum table clearance required to satisfy the requirements of fitting 95% of men is of 23.6 in.

More can be learned about the normal distribution at https://brainly.com/question/24663213

Answer:

Let a, b, c be the sides that oppose angles A, B, C, respectively. By the Law of Sines,

asinA=bsinB=csinC=d

where d is the circumdiameter of the triangle. If we conveniently scale the triangle so that d=1, then we can say simply that

a=sinAb=sinBc=sinC

This is a common simplification technique, as it nicely blurs the distinction between edges and angles, giving us things like this wonderfully-symmetric area formula:

Area=12abc(=12absinC=12acsinB=12bcsinA)

(When you have this mindset, you can't look at the expression "sinA+sinB+sinC" and not think, "That's perimeter!" ... and then you find yourself pursuing proof approaches like this one.) In what follows, I'll continue to use "a", "b", "c", because they're more compact than "sinA", etc, but you should read them as "sinA", etc.

Answer:

64 feet of fencing needed

Step-by-step explanation:

sqrt(256)=16

16*4=64

Gwen need to build 64 feet of fencing around the square play ground.

What is a quadrilateral?

quadrilateral is a plane mathematical closed figure consist of four side and four edges. There are 7 types of quadrilateral.

Trapezium, Parallelogram, Rectangle, Rhombus, Square, Kite.

Here, it is given that Gwen wants a play ground squared shaped of 256 feet.

Firstly, Now let us find out the side of square a play ground to be fenced which will be :

a² = 256 feet²

a = √256

a = 16 feet

Now lets find the fencing length around a square play area for her puppy that will be equals to the 4 times of side of square that is :

perimeter of square fence = 4a

                                            = 4x16

                                            = 64 feet.

Therefore, Gwen need to build 64 feet of fencing around the square play ground.

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