please help 20 Pts...

Answer:

The distance between the two cities is 360 miles.

Step-by-step explanation:

Let a equal the airspeed of the plane in still air; and d be the distance between the two cities. Then:

d/a+30=1.5

d=1.5a+45

and

d/a-30=2

d=2a-60

So

2a-60=1.5a+45

.5a=105

a=210

d/210-30=2

d=360

The distance between the two cities is 360 miles.

Answer:

54

Step-by-step explanation:

[tex]7^{2} + 2^{2} \\7^{2} = 49\\2^{2} = 4\\49 + 3 = 54\\[/tex]

Answer:

53 is the answer

Step-by-step explanation:

49+4=53

Answer:c

Step-by-step explanation:

c

Answer : 274

Step-by-step explanation : I just searched  it and got images for what is would look like.

a) Between the two times, Time A and Time B, 12 minutes passed (total time).

b) During this time, Josh drove his car for 10.8 miles (total distance).

c) This means that Josh was driving at an average rate (speed) of 0.9 miles per minute.

The average driving rate refers to the speed at which Josh was driving his car.

The average rate is the quotient between the total distance covered and the total time taken to cover the distance.

The distance, time, and speed formula are Distance = Time x Speed.  

Therefore, Speed = Distance/Time.

Reading on odometer at 9:53 = 52,604.1

Reading on odometer at 10:05 = 52.614.9

Distance covered = 10.8 miles (52.614.9 - 52.604.1)

Difference in time = 12 minutes (10:05 - 9:53)

Average speed = 0.9 miles per minute (10.8/12)

Learn more about the average rate at https://brainly.com/question/24313700.

#SPJ1

Answer:

Draw a rectangle.. write 13 on the two longer sides of the rectangle then write 7 on the other two shorter ones. Then add them all up and there you go your answer!

Our equation would be 13 +  13 + 7 + 7 = 40 inches

Step-by-step explanation:

The values of r for which the shaded region will be greater than or equal to 12 square units is;

r ≥ 8

We can see a rectangle and a triangle in the given image.

With the triangle being the unshaded portion of the rectangle.

Thus;

Area of shaded portion = Area of rectangle - area of rectangle.

We know that formula for area of rectangle is;

A_r = length × width

Thus; A_r = 3 × r

A_r = 3r

Area of a triangle is;

A_t = ½ × base × height

A_t = ½ × r × 3

A_t = ½(3r)

Thus;

Area of shaded portion = 3r - ½(3r)

Area of unshaded portion = 1.5r

We are told that the area of the unshaded region should be greater than or equal to 12. Thus;

1.5r ≥ 12

r ≥ 12/1.5

r ≥ 8

Read more about area of rectangle and triangle at; https://brainly.com/question/24251781

Answer:

1125 per year

Step-by-step explanation:

First I did 3500 - 125 = 3375

Then I divided 3375 by 3 (for the amount of years)

The answer I got was 1125.

So your final answer is 1125 per year

Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!

Answer:

last answer (4th )

Step-by-step explanation:

Answer:

6x ≥ 4

Step-by-step explanation:

Answer:

whats the question here?

Step-by-step explanation:

Answer:

Hi there!

In order to answer your question, you'll need to use the cross product method:

1 cup water → 1/4 cup sugar

10 cups water → X cup sugar

((1/4) × 10) ÷ 1 = X cups sugar

2.5 ÷ 1 = X cups sugar

2.5 = X cups sugar

Your answer is : Using 10 cups of water, you should add 2 and a half cups of sugar so that the large batch tastes the same as the test batch.

There you go! I really hope this helped, if there's anything just let me know! :)

Step-by-step explanation:

Answer:

213 R:7

Step-by-step explanation:

Answer:

8100π in. Squared

Step-by-step explanation:

i.d.k its a guess

Answer:

Number one will be 11 minutes

Number two will be 525 words

Step-by-step explanation:

Answer:

Step-by-step explanation:

A: 4 divided by 385 = 96 R1

so it will be 96 minutes

B: 2 minutes

It is C. Because it helps us organize our data on what the question is asking.

Answer:

x= 8  

y = 21

Step-by-step explanation:

Answer:

(0.5,0)

Step-by-step explanation:

Answer:

The answer should be (0,0.5)

Step-by-step explanation:

if it is wrong then I am sorry:'(

Answer:

ask your teacher for help

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

3.)138

4.) 149

Step-by-step explanation:

you add the two inside measures together.

Answer:

3- 42, 4- 137

Step-by-step explanation:

<1+<2+x=180

93+45+x=180

x=180-93-45

x=42

<1+<2+<3=180

43+106+<3=180

<3=180-106-43

<3=31

<3+x=180

43+x=180

x=180-43

x=137

Answer:

Here is the math to illustrate better:

57/1 = 57 and 34/1 = 34

Thus, 57:34 ratio simplified is 57:34

Step-by-step explanation:

Answer:

57:34

Step-by-step explanation:

Answer: RS

Step-by-step explanation:

Answer:

RS :)

It's the same shape but flipped and RS is equivalent to BC. :)

Answer:

the whole cake

Step-by-step explanation:

hope this helped.

have a nice day

Answer:

I think the anwser is 27R 13

Step-by-step explanation: The mistake was he probably subtrcted or borrowed wrong

Answer:

4 cars because he washed 20 cars in 20 hours

Answer:

8 cars

Step-by-step explanation:

20÷5=4

so 4 per hour

4•2=8

so 8 per 2 hours

Answer:

12

Step-by-step explanation:

Let's look at the following exponent rule below:

[tex]\frac{x^{a} }{x^{b} } = x^{a-b}[/tex]

We can apply this rule to the problem given to help us find the final answer by taking each exponent and subtracting them. Let's illustrate this below:

[tex]\frac{12^{-4} }{12^{-5} } =12x^{-4-(-5)}[/tex][tex]=12^{-4+5} =12^{1} =12[/tex]

Hopefully this was helpful! Let me know if you have any more questions.