Solve for x.
х= 2
х = 5
х = 4
х= 10

The speed of the airplane is the ratio of the distance to the time

The initial average speed of the airplane is approximately 110.8 mph

Reason:

Given parameters are;

The distance between Portland Oregon and Seattle Washington = 145 miles

The decrease in travel time when the speed is increase by 20 mph =  minutes

The initial speed of the airplane, v = Required;

Solution;

[tex]t = \dfrac{145}{v}[/tex]

[tex]t - \dfrac{12}{60} = \dfrac{145}{v + 20}[/tex]

Therefore;

[tex]\dfrac{145}{v} - \dfrac{12}{60} = \dfrac{145}{v + 20}[/tex]

Which gives;

[tex]\dfrac{145}{v + 20} - \dfrac{145}{v} + \dfrac{12}{60} = 0[/tex]

Therefore

0.2·v² + 4·v - 2,900 = 0

v ≈ ±110.8 mph

The initial average speed of the airplane, v≈ ± 110.8 mph

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Answer:

That would be -2, -2

Step-by-step explanation:

This is because if you go left or right it changes the x in (x,y). And when you move up or down it changes the y. So 5 seven units to the left is like 5 - 7 which is -2. And one unit up from -3 is -3 + 1 which is -2. Then you get your answer which is (-2,-2)

Given that Sienna planned a rectangular pool drawn on a scale 11 inches long by 7 inches wide, and Sienna used the scale drawing above to create a pool that is 14 ft wide x 22 ft long, and she then decided to make a pool with a final length of 33 ft, to determine which expression finds the change in scale factor for the longer pool Sierra is building the following calculation must be performed:

Therefore, the scale factor went from 1:12 to 1:36.

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Answer:

2ft/3ft

Step-by-step explanation:

Answer:

33600

Step-by-step explanation:

2800×12=33600....

Answer:

Area - l*w

area is 4500 cm 2

perimeter - l + w * 2

perimeter is 280 cm

Answer:

The answer will be -300

Step-by-step explanation:

Doing this in a calculator, it will give you -300

Answer:

the answer is 2143.57! hope this helps!

Answer:

12

Step-by-step explanation:

1/2x = 6

x = 12

Answer:

x=12

Step-by-step explanation:

half of 12 is 6. 6-2=4

Answer:

irdk

Step-by-step explanation:

Answer:

Option B gives Ryan more earnings this weekend

Step-by-step explanation:

Option A = $7.75×7 hours= $54.25

Option B= 5% commission, if the play gets $2100, he will earn $105

Step-by-step explanation:

I will help you if you follow me

Answer:

-50

Step-by-step explanation:

all you do is -5 times 10

Answer:

a^(4/15)

Step-by-step explanation:

rules of indices:

WHEN MULTIPLYING POWERS WITH THE SAME BASE YOU ADD THE POWERS

a^(1/5) × a^(2/3) = a^(1/5 + 2/3)

a^(13/15)

WHEN DIVIDING POWERS WITH THE SAME BASE YOU SUBTRACT THE POWERS

a^(13/15) / a^(3/5) = a^(13/15 - 3/5)

a^(4/15)

NOTE: YOU HAVE TO FOLLOW BODMAS RULE IN THE QUESTION.. AND PLEASE LOOK OUT FOR THE POWERS WITH THE SAME BASE. IF BASE IS DIFFERENT YOU CANNOT SIMPLIFY...

1) If a number is multiplied by 4 then it is multiplied by 2

2) All numbers below zero are negative numbers

Hope this helped you- have a good day bro cya)

The modification that has the least cuts to her current expenses will be C. Caitlin can eliminate $54 from Food/Clothes and $120 from Entertainment.

It should be noted that current expenses are the simply the expenses that keep an individual or business going.

In this case, the modification with the least cuts to her current expenses that will allow Caitlin to pay off her balance in 20 months is that Caitlin can eliminate $54 from Food/Clothes and $120 from Entertainment.

This is important in order for her to cut her cost.

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Answer:2x²-2x + 6 - (-3x)

Step-by-step explanation:

Answer:is it mile 1 or 1 mile?

Step-by-step explanation:

Answer:

[tex] \frac{1}{2} c > - 1[/tex]

[tex]c > - 1 \div \frac{1}{2} [/tex]

[tex]c > - 1 \times 2[/tex]

[tex]c > - 2[/tex]

Answer:

r ≤ 2 1/4

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Rewriting Fractions

Step-by-step explanation:

Step 1: Define

1 2/3 ≥ r - 7/12

Step 2: Solve for r

Rewrite:                    5/3 ≥ r - 7/12

Isolate r:                    9/4 ≥ r

Rewrite:                    r ≤ 9/4

Reduce:                    r ≤ 2 1/4

Here we see that any number r less than or equal to 2 1/4 will work as a solution to the inequality.

Answer:

15 or 16

is it? I dont know

Answer:

14 year old

Step-by-step explanation:

8 14 2007

Answer: Diego's mistake is that he multiplied the exponents, instead of adding. The answer should be 2^3+^2= 2^5

Answer:

hi lets be friends oki and by the way im a 4th grader

Answer:

55-10=45

Step-by-step explanation:

Answer:

The equation of the scenario is

✔ p = 55 – 0.5w

.

The values of p must be

✔ any real number 45 to 55

.

Step-by-step explanation:

edge 2021

Answer: yes

Step-by-step explanation:

Answer:

Step-by-step explanation:

f(x) = x^3 - 3x^2 - 28x + 60

x(x^2-3x-28)+60

Factor the inside of the parenthesis

Multiples of 28: (1X28),(2X14),(4X7). 7-4=3, 7 & 4 is the correct multiple.

x(x-7)(x+3)+60

Roots: 0,7,-3,6

Also you can plug your function into Desmos and see where it crosses the x-axis.