Flying against the wind, an airplane travels 4300 kilometers in 5 hours. Flying with the wind, the same plane travels 12,240 kilometers in 9 hours. What is the rate of the plane in still air and what is the rate of the wind?

Step-by-step explanation:

im not sure but I think the answer is -4

Answer:

4

Step-by-step explanation:

Take away the negative signs:

-80/-20

80/20

Now, divide normally.

80 ÷ 20 = 4

Since a negative number divided by another negative number is positive, the quotient is still 4.

Therefore, the simplified fraction is 4.

Answer:

B: 2 + √3

Step-by-step explanation:

None

Answer:

-13 - [tex]\frac{7}{4}[/tex]b

Answer:

25

Step-by-step explanation:

4.6 + 1.2g = 54.6 -.8g

1.2g + .8g = 54.6 - 4.6

2g = 50

g = 25

Answer:

Hideki is draining a 45-gallon aquarium at a rate of 15 gallons per minute. Let's solve for the initial value of the linear function that represents thissituation. => 45 gallon aquarium at rate of 15 gallons per minute.

=> 45 gallon / 15 gallon = 3 minutes. Therefore with the rate of 15 gallons per minutes, Hideki will be able to finish the 45 gallon aquarium in 3 minutes.

Step-by-step explanation:

Answer:

The line equation is y = 1.5x + 3

Fill the first space with '1.5' and the second with '3'

Step-by-step explanation:

The generic model for a line equation is:

y = ax + b

To find the parameters 'a' and 'b', we can use two points of the graph in the equation.

Using the point (0, 3), we have:

3 = 0*a + b

b = 3

Using the point (-2, 0) and the value of b above, we have:

0 = -2*a + b

2a = 3

a = 1.5

So the line equation is y = 1.5x + 3

Answer:

b and c are the only correct answers.

Step-by-step explanation:

Answer:

3x<5+4

=3x<9

=x<9

3

x<3

-8x-19<21

-8x<21+19

-8x<40

x<40

-8

x<-5

Answer:

C

Step-by-step explanation:

If  The probability of spinning a “1” is 0.25, then the probability of spinning 4 ones is:

0.25*0.25*0.25*0.25 = 0.25^4 ≈ 0.004

(the four events are independent)

The pointer landed on 1 each time, which probability is very low. So, we can conclude that the spinner is not fair.

Answer:

The cost of 1 apple is a third of the price of 3 apples

Step-by-step explanation:

google says that apples are $1.49 a pound

1=$1.49

3=$4.47

Answer:

the answer is f.

Step-by-step explanation:

it is the only sensible answer. every 5 years it increases by ~40%.

Answer:

Try mutiplying it by nine

Step-by-step explanation:

Since a triangular prism has 3 sides and each side has 3 corners in all there're 9 corners if thats not it try 3

Answer:

answer is 39

Step-by-step explanation:

Answer:

3:10 30%

Step-by-step explanation:

6:20 is the same as 3:10

Answer:

it is 3 / 10 or  30%

(take 6 / 20 and simplify)

Step-by-step explanation:

Since after I saw that after three different 6 shaded portions left 2 squares i reliezed that it wasn't exactly 33%, so the closest would be 30%.

Answer:

142.4 cubic units is the correct answer

Step-by-step explanation:

right on edge

The volume of oblique cone, to the nearest tenth is,

⇒ 142.3 units³

The area that any three-dimensional solid occupies is known as its volume. These solids can take the form of a cube, cuboid, cone, cylinder, or sphere.

Since, WE know that,

Volume of oblique cone = (1/3) x π x r² x h

Given that,

Radius (r) = 4 units

Height (h) = 8.5 units

Thus:

Volume of oblique cone = (1/3) x π x 4² x 8.5

Volume of oblique cone = 1/3 × 3.14 × 16 × 8.5

Volume of oblique cone = 142.3 units³

Learn more about volume of oblique cone on:

brainly.com/question/26524753

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Answer:

The Answer is Y. PLeASE GIVE ME BRAInLIEST

Step-by-step explanation:

Answer:

Y

Step-by-step explanation:

Nah, you can give the brainliest mark to me thanks

Answer:

Step-by-step explanation:

"the same as decreased by 30%" would be (1.00 - 0.30)(original cost), or

                                                                               0.70(original cost)

Note:  when answer choices are give, kindly share them.  Thank you.

Answer:

13.6

Step-by-step explanation:

The measure of the segment AQ is related to the measure of the segment A'Q by the dilation factor as follows:

dilation factor = A'Q/AQ

AQ = A'Q/dilation factor

Replacing with data:

AQ = 2.4/0.15 = 16

Then, the distance between points A and A' is

x = 16 - 2.4 = 13.6

The  distance between points A and A' is 13.6 units

Dilation is a way of changing the position of an image on an xy-plane.

The measure of the segment AQ is related to the measure of the segment A'Q by the dilation factor. Hence'

scale factor = A'Q'/AQ

Given the following

A'Q' = 2.4

Scale factor = 0.15

Substitute

AQ = 2.4/0.15

AQ = 16

x = 16 - 2.4

x = 13.6

Hence the  distance between points A and A' is 13.6 units

Learn more on dilation here: https://brainly.com/question/10253650

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Answer:

Option B.

Step-by-step explanation:

If the cost of the house (y) is in thousands and area of the house is x ft².

Cost of the house is modeled by the equation given,

y = 0.06x + 60.5

By substituting the values in the line of best fit,

235 = 0.06x + 60.5

0.06x = 235 - 60.5

0.06x = 174.5

x = [tex]\frac{174.5}{0.06}[/tex]

x = 2908.33 ft²

x ≈ 2900 ft²

Therefore, Option B will be the correct answer.

Answer:

how many marbles are in the jar on the teacher's desk

Step-by-step explanation:

a statistical question which can be answered by collecting data and in that data there will be variability in that data . This type of question is different from other type of questions .

Answer:

-11

Step-by-step explanation:

(a+b) +(c+d)

plug in

(-5+15)+(-9-12)

type in calculator

you will get your answer (-11)

Answer:

-11 (b)

Well basically plug the numbers into the equation. Than solve.

Step-by-step explanation:

So (-5 + 15) + (-9 + -12) is what you get when you plug in the values. Than do the math. 10 + -21 = -11

There you go. Hope this helped.

Answer:

-3a+5b+7   -2x+7y+13   -3m-4   24+7a   5a+10   3m+3   6s+4

Step-by-step explanation:

Answer:

-3a+5b+7   -2x+7y+13   -3m-4   24+7a   5a+10   3m+3   6s+4

Step-by-step explanation:

Combine like terms and use distributive property.

Answer:

There are 3 modes

Step-by-step explanation:

There are two 3s, two 6s, and three 7s

Answer:

I agree

Step-by-step explanation:

1>m just states that 1 is greater than the variable

m<1 States that the variable is less than 1

They both say that the variable is less than 1 so that basically mean they're the same

Answer:

Step-by-step explanation:

12x12=144

19x12/2=228/2=114

114+144=258

15 is not a prime factor as it is divided by 1,3,5 and 15.

Additional information:

Prime numbers are those numbers which can only be divided by itself .for instance:1,2,3,5,7 ,11,13 etc.

Composite number s are those numbers which can be also divided by other numbers,For instance: 4,6,8,10 etc

Hope it helps....

Answer:

78.5

Step-by-step explanation:

The formula for area of a circle is pir^2

So we have 5 for r, so r^2 would be 25.

Using 3.14 for pi, we get the answer is 78.5

Answer:

78.5

Step-by-step explanation:

sry forgot a step

Answer:

C

Step-by-step explanation:

The equation of a line is usually written in the form of y=mx+c, where m is the gradient and c is the y-intercept.

Gradient=

[tex] \frac{y1 - y2}{x1 - x2} [/tex]

[tex]m = \frac{ - 12 - ( - 15)}{ - 5 - ( - 1)} \\ m = \frac{15 - 12}{1 - 5} \\ m = - \frac{3}{4} [/tex]

y= -¾x +c

To find c, substitute a coordinate.

When x= -1, y= -15

[tex] - 15 = - \frac{3}{4} ( - 1) + c \\ c = - 15 - \frac{3}{4} \\ c = - 15\frac{3}{4} [/tex]

Thus the equation of the graph is

[tex]y = - \frac{3}{4} x - 15 \frac{3}{4} [/tex]

Therefore the answer is C.

Answer:

common difference=-3

Step-by-step explanation:

[tex] - 13 - ( - 16) = - 13 + 16 = - 3[/tex]

Answer:

C and D

Step-by-step explanation:

the answers are C and D.

Answer:

66°

Step-by-step explanation:

Complementary angles are those that add up to 90 degrees. Since a and b are complementary, we can write:

∠a + ∠b = 90

We already know that ∠a = 24°, so we can plug this in:

24 + ∠b = 90

∠b = 90 - 24 = 66°

Thus, the answer is 66°.