An airplane flew for 4 hours at a speed of a miles per hour (mph), and at (x + 10) mph for next 4 hours. What expression can be used to
find the total distance covered by the airplane?


A: 8x
B: 8x+10
C: 8 (x+10)
D: 8x+ 40

Answer:

Step-by-step explanation:

The set of ordered pairs {(1 , 7) , (−1 , 7) , (8 , −6) , (−3 , 2)} is a function

The set of ordered pairs {(4 , 7) , (−1 , 2) , (4 , −6) , (−3 , −2)} is not a

function

The set of ordered pairs {(3 , 7) , (−1 , 2) , (−4 , −2) , (−3 , −2)} is a function

The set of ordered pairs {(−3 , 7) , (1 , 2) , (4 ,−2) , (12,−4)} is a function

An ordered pair represents a relationship between two values

The first value is the input the second value is the output

1. A relation is a set of inputs and outputs

2. A function is a relation with one output for each input

3. All functions are relations

{(1 , 7) , (−1 , 7) , (8 , −6) , (−3 , 2)}

∵ Each x-coordinate in each ordered pair has only one y-coordinate

∴ The relation above is a function

The set of ordered pairs {(1 , 7) , (−1 , 7) , (8 , −6) , (−3 , 2)} is a function

{(4 , 7) , (−1 , 2) , (4 , −6) , (−3 , −2)}

∵ The x-coordinate 4 has two values of y (7 and -6)

∴ The relation above is not a function

The set of ordered pairs {(4 , 7) , (−1 , 2) , (4 , −6) , (−3 , −2)} is not a

function

{(3 , 7) , (−1 , 2) , (−4 , −2) , (−3 , −2)}

∵ Each x-coordinate in each ordered pair has only one y-coordinate

∴ The relation above is a function

The set of ordered pairs {(3 , 7) , (−1 , 2) , (−4 , −2) , (−3 , −2)} is a function

{(−3 , 7) , (1 , 2) , (4 ,−2) , (12,−4)}

∵ Each x-coordinate in each ordered pair has only one y-coordinate

∴ The relation above is a function

The set of ordered pairs {(−3 , 7) , (1 , 2) , (4 ,−2) , (12,−4)} is a function

Answer:

9

ten's go for the number 10

91=9-1 9 in 90 so its 9.

so therefore your answer is 9

Step-by-step explanation:

Answer:

y=x-11

Step-by-step explanation:

5y+22=5x-33

5y=5x-33-22

5y=5x-55

y=x-11

Answer:

Step-by-step explanation:

First collocate the equation

5y+55=5x

Divide the equation 5

y+11=x

y=x-11

Answer: 30

Step-by-step explanation:

180=88+3x+2

180=90+3x

90=3x

x=30

Answer:

THEN, the value of n is

(A) 37

(B) 30

(C) 40

(D) 36

answer is B)30

Step-by-step explanation:

Hope this helped!

Mark me brainliest if so! :) thankssss

Answer:

349.60

Step-by-step explanation:

The cheetah can run 2.42 km in 90 seconds

From the question, we are to determine how fast the cheetah could run in 90 seconds

First, we will convert the speed to meter/seconds

The given speed = 97 km/hour

97 km/ hour  = (97 × 1000 /3600) m/s

97 km/hours =  26.9444 m/s

Now, using the formula,

Distance = Speed × Time

From the given information,

Time = 90 seconds

∴ Distance = 26.9444 × 90

Distance = 2424.996 m

Distance = 2.424996 km

Distance ≅ 2.42 km

Hence, the cheetah can run 2.42 km in 90 seconds

Learn more on Calculating distance here: https://brainly.com/question/11107806

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Answer:

4.75+0.75

Step-by-step explanation:

The equation that help find length of scarf is l = 0.75 + 4.75

The result of adding two or more numbers is called a sum.

Given,

           Length of striped scarf = 0.75 feet

           Length of remaining scarf = 4.75 feet

Total length = Length of striped scarf + Length of remaining scarf

 Hence,           l    =   0.75  +   4.75

To learn more about addition visit:

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Answer:

Some equivalent ratios 1:2 3:6 5:10 6:12  

Step-by-step explanation:

basically its just 1/2 in a ratio form.

Answer:

either multiply or divide both the numerator and denominator by the same number.

Step-by-step explanation:

5/10 can be divided by 5/5 = 1/2

5/10 can be multiplied by say 2/2 = 10/20

Area =20^2 = 20 x 20 = 400 square feet

Answer: The answer is 400

Step-by-step explanation:

The answer is 400 because each side is 20feet and u have to multiply l x w so the answer is 400 because 20x20 is 400

Answer:

The slope of the graph will be:

From the attached graph, it is clear that

Step-by-step explanation:

Given the two points on the line

[tex]\mathrm{Slope\:between\:two\:points}:\quad \mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]\left(x_1,\:y_1\right)=\left(0,\:-4\right),\:\left(x_2,\:y_2\right)=\left(3,\:0\right)[/tex]

[tex]m=\frac{0-\left(-4\right)}{3-0}[/tex]

[tex]m=\frac{4}{3}[/tex]

Hence, the slope of the graph will be:

[tex]m=\frac{4}{3}[/tex]

We can also find the equation of the line using the point-slope form of the line equation

[tex]y-y_1=m\left(x-x_1\right)[/tex]

substituting the values m = 4/3 and the point (0, -4)

[tex]y-\left(-4\right)=\frac{4}{3}\left(x-0\right)[/tex]

[tex]y+4=\frac{4}{3}\left(x-0\right)[/tex]

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

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

Therefore, the equation of the line will be:

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

The graph of the equation line is also attached below.

From the graph, it is clear that

Answer: 1/3

Step-by-step explanation:

Answer:

it 1/12

Step-by-step explanation:

Answer:

(7,4)

Step-by-step explanation:

When rotating a point 90 degrees counterclockwise about the origin our point A(x,y) becomes A'(-y,x). In other words, switch x and y and make y negative. (7,8)

Afterwards, four units down means changing the y coordinate we have, thus making our (8) into (4.)

Hope this helps!

Answer:

13.41

Step-by-step explanation:

Answer:

13.31

Step-by-step explanation:

First do 35.19-12.78=22.41

I assume slightly more than $9 is .1

then subtract 22.41-9.1=13.31

Answer:r = -1

Step-by-step explanation:

8+8r-(3+3r)=0

We add all the numbers together, and all the variables

8r-(3r+3)+8=0

We get rid of parentheses

8r-3r-3+8=0

We add all the numbers together, and all the variables

5r+5=0

We move all terms containing r to the left, all other terms to the right

5r=-5

r=-5/5

r=-1

Hope this helps

Answer:

m=-8, b=3, y=-8x+3

m=2/5, b=-1, y=2/5x-1

y=-2x-1

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

i had this problem before so i know

Answer:

$14,080

Step-by-step explanation:

You can use a formula for exponential decay, but since it is only 2 years, you can find 80% of the original value, and then 80% of the new value.

Original value: $22,000

Value after 1 year: 80% of $22,000 = 0.8 * $22,000 = $17,600

Value after 1 year: $17,600

Value after 2 years: 80% of $17,600 = 0.8 * $17,600 = $14,080

Answer: $14,080

Answer:

it is A , 14,080

Step-by-step explanation: edge 2021

The answer would be A

Answer:

I believe it's D.

Explanation:

The line goes one square down and 3 squares to the right

Answer:

y=4x+9

Step-by-step explanation:

Answer:

40

Step-by-step explanation:

10 x 4 = 40

so if it was 1/2 instead of 1/4 than it would be 20

Answer:

40

Step-by-step explanation:

[tex]Let\ the\ number\ be\ x\\Hence,\\From\ the\ information\ we\ may\ frame\ the\ following\ equation\ :\\\frac{x}{4}=10\\x=4*10\\x=40\\Hence,\ the\ number\ is\ 40 .[/tex]

9514 1404 393

Answer:

  6 +8√5

Step-by-step explanation:

The leg length can be reduced to simpler form:

  3 +√45 = 3 +√(3²·5) = 3 +3√5

The perimeter is the sum of the side lengths, so is ...

  (3 +3√5) +(3 +3√5) +(2√5) = 6 +8√5 . . . perimeter

Answer:

117

Step-by-step explanation:

1,100 - 160 = 940

940 ÷ 8 = 117.5

you round down to 117

Step-by-step explanation:

1/5x+60=2/3x-2

subtract 1/5x from 2/3x

when you do that you should get 0.46x repeating

then you add two to 60

you should get 62

62=0.46x

divide x

you get 134.7

Answer:

I think it is A ..... ........

Answer:

y=√2x is the answer.....

Answer:

3x + 16/3

Step-by-step explanation:

3(x +1) + 2 1/3 (distribute 3 into parentheses)

3x + 3 + 2 1/3 (calculate)

3x + 5 1/3 (convert to improper fraction)

3x + 16/3 (done)

3x + 16/3

Answer:

3x + 16/3

Step-by-step explanation:3(x +1) + 2 1/3 (distribute 3 into parentheses)

3x + 3 + 2 1/3 (calculate)

3x + 5 1/3 (convert to improper fraction)

3x + 16/3

3x + 16/3

Answer: Sue has 1 more brother than sisters

Step-by-step explanation:

Answer:

Remaining credit = $11.36 [11 dollars and 36 cents]