what will be the value of d when an airplane flies at 420 miles per hour for three hours?

Answers

Answer 1

Answer:

1260 I think

Step-by-step explanation:

because if the airplane is travelling at 420 mph for THREE hours then 420x3=1260


Related Questions

what is the percent of decrease from 4 to 1

Answers

Answer:

75%

Step-by-step explanation:

It went down by 3 so,

4-1=3

4 * 75% or 0.75=3

Jace and his children went into a bakery and he bought $9 worth of cookies and brownies. Each cookie costs $0.75 and each brownie costs $3. He bought twice as many cookies as brownies. Graphically solve a system of equations in order to determine the number of cookies, x,x, and the number of brownies, y,y, that Jace bought.

Answers

Answer:

(9, 18) (3, 6) Plz correct me if wrong

Step-by-step explanation:

Jace bought 4 cookies and 2 brownies from the bakery.

Let x represent the number of cookies and y represent the number of brownies.

Since he bought $9 worth of cookies and brownies. Each cookie costs $0.75 and each brownie costs $3. hence:

0.75x + 3y = 9      (1)

Also, he bought twice as many cookies as brownies, hence:

x = 2y

x - 2y = 0     (2)

Solving equation 1 and 2 simultaneously gives x = 4, y = 2

Hence Jace bought 4 cookies and 2 brownies from the bakery.

Find out more at: https://brainly.com/question/16763389

Which one should I choose

Answers

Answer:

100% B

Step-by-step explanation:

Answer:

The first choice: x^6y^5

Step-by-step explanation:

When you multiply exponential you add the exponents.

Diana completes 205 jumping jacks in 5 minutes at a constant rate. How many jumping jacks did she accomplish in 2 minutes?

Answers

Answer:

82

Step-by-step explanation:

205/5=41 jumps per minute

41*2= 82 jumping jacks

hope this helps :))

2 balloons and 3 cakes cost $26.
4 balloons and 4 cakes cost $40.
What's the cost of 1 balloon?
What's the cost of 1 cake?

Answers

Answer:

The cost of one balloon is 4 dollars

the cost of one cake is 6 dollars

Step-by-step explanation:

The way I did it was by substituting different numbers and seeing if they equaled forty or 26.

my thought process:

1 balloon= 5

1 cake= 10

that doesnt work for 2 balloons and 3 cakes

1 balloon=5

1 cake=5

that works for 4 balloons and 4 cakes but not 2 balloons and 3 cakes

1 balloon=4

1 cake=7

I'm sorry I'm way too tired to finish this 0-0 anyways yeah that's the correct answer :)

-19 + 4k - 15k - k -9

Answers

Answer:

Let's simplify step-by-step.

−19+4k−15k−k−9

=−19+4k+−15k+−k+−9

Combine Like Terms:

=−19+4k+−15k+−k+−9

=(4k+−15k+−k)+(−19+−9)

=−12k+−28

Answer:

=−12k−28

Step-by-step explanation:

Which of the following correctly describes the end behavior of the polynomial
function, f(x) = 2x4 - 3x2 + 2x?
A. The left end goes up and the right end goes down.
B. Both ends go down.
C. Both ends go up.
D. The left end goes down and the right end goes up.

Answers

Answer:

both ends go up

Step-by-step explanation:

1.) Look at the figure below.
A
+5
3x
B
What is the measure of ZB?
A 35°
B
71°
С
760
D 105°

Answers

Answer:

D

Step-by-step explanation:

Jayden budgets $400 of his $3,200 monthly income towards donations. What percent of his income does he donate each month?

Answers

Answer:

12.5%

Step-by-step explanation:

400 divided by 3200= .125

.125 x 100= 12.5

12.5%

Find the Values of X and Y in the diagram. PLZ HELP

Answers

Answer: x is 47, y is 75

Step-by-step explanation:

4. In a normal distribution with u=150, o = 12.5 find P(x < 145).

Answers

Answer:

i know it hard but i know u get there

There are 7 socks in a bag. 2 of those socks are blue.
What is the probability of picking a blue sock randomly from the bag

Answers

Answer:

2/7 or about 28% depending on what type of answer your teacher is looking for

Solve for x.
(17x –23)
°
(8x –4)
°
(3x + 17)°

Answers

Answer:

=28x −10

Step-by-step explanation:

28x

The value of x will be;

⇒ x = 6

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

The expression is,

⇒ 17x - 23 = (8x - 4) + (3x + 17)

Now,

Solve the expression as;

The expression is,

⇒ 17x - 23 = (8x - 4) + (3x + 17)

⇒ 17x - 23 = 8x - 4 + 3x + 17

⇒ 17x - 23 = 11x + 13

⇒ 17x - 11x = 23 + 13

⇒ 6x = 36

⇒ x = 6

Thus, The value of x will be;

⇒ x = 6

Learn more about the mathematical expression visit:

brainly.com/question/1859113

#SPJ2

YO NEED SOME HELP ON THIS END OF GRADE SOON!!

Answers

Answer: b

Step-by-step explanation:

Cuz is a negative get in absolute value it always comes out positive

And it says below 0-9=-9

Answer:

B

Step-by-step explanation:

__________________________________________________________

B is the answer because,

if the negative sign is not inside the "brackets," then the number will still be negative.

__________________________________________________________

But, if the negative sign is connected to the number, or inside the "brackets," then it will always be positive.

__________________________________________________________

Here are the reasons why the rest are wrong.

__________________________________________________________

A is not correct because the outcome isn't negative, even though it's correct in mathematical instances.

__________________________________________________________

C is not correct because it is plainly not correct in itself.

__________________________________________________________

D is also not correct because it is not correct in the mathematical equations, even though it has a -9 as the equal, it's still wrong.

__________________________________________________________

Hope this helps! <3

__________________________________________________________

What is the answer for 2m + 3m + 8 + 6

Answers

Answer:

5m+14

Step-by-step explanation:

(EASY) Which best describes the relationship between the lines?

Answers

Perpendicular. Also if it’s “easy” then maybe try to do it.

What is the length of the line segments with endpoints (-9,5) and (12,5)

A. 12

B. 9

C. 21

D. 10

Answers

Answer:

The answer is C

Step-by-step explanation:

Answer:

21

Step-by-step explanation:

what is the percent increase from 2,000 to 3,000

Answers

50% should be the present increase :)

What is cos 30°?
O A
B. 1
OC
-IS
OD
O
E.
O EV3

Answers

Answer:

cos (30 deg) = sqrt (3) /2

Step-by-step explanation:

Which one should I choose

Answers

Answer:

try x^2   X   6

Step-by-step explanation:

Last month you spent ​$30 on clothing. This month you spent 150​% of what you spent last month. Set up a proportion to model this situation. How much did you spend this​ month?
You spent ​$*blank* this month.​

Answers

Answer:

$45

Step-by-step explanation:

x=1.5(30)

x=45

Meg's Bakery sells the following items.
• one cinnamon roll for $2.50 or four for $10.00
• one pie for $12.50 or two pies for $22.00
• a dozen brownies for $9.00
A. Determine if there is a proportional relationship between cinnamon rolls and the cost of cinnamon rolls. If there is determine the unit rate.

Answers

Answer:

it is $2.50 multiplied by 4

Step-by-step explanation:

this is because for every 1 cinnamon roll it is $2.50 and if you multiply that by 4 you get $10, or how much it costs for 1 roll

How would you do this as a decimal number ?

Answers

Answer:

-5.875

Step-by-step explanation:

List the sides in order from shortest to longest. The diagram is not to scale.
66
50
64

Answers

The sides are in the order of 50, 64, 66

Please help meeeeeee will brainliest

“ Create two whole number division problems that have a quotient of 9 and a remainder of 5. Justify which is greater using decimal division”

Answers

Answer and equation: If we choose two whole numbers; 8 and 10

We want to divide certain numbers by 8 and 10 to get 9 remainder 5.

In this case; 77 divided by 8 is equal to 9 rem 5

and 95 divided by 10 is equal to 9 rem 5

To justify which is greater, we use decimal division;

= 77 divided by 8 we get 9.625 ( 77 ÷ 8 = 9.625)

and

= 95 divided by 10 is equal to 9.5 (95 ÷10 = 9.5)

Therefore; the first case is greater since 9.625 is greater than 9.5

That is; 9 rem 5 got after dividing 77 by 8 is greater than 9 rem 5 got after dividing 95 by 10.

At time T equals zero, water begins to drip out of the pipe into an empty bucket. After 42 minutes, there are 6 inches of water in the bucket. Right Ellen air function rule to model how many inches of water W are in the bucket after any number of minutes T.

Answers

the values of 'm' and 'b' are 0.5 and 0 respectively.

Step-by-step explanation:

If you have 2 pieces of spaghetti that have lengths 4 cm and 10 cm, what could be the possible length of a third piece of spaghetti to complete the triangle? cm < x < cm

Answers

Answer:

  6  <   third side    <   14

Third side must be greater than 6 and less than 14

Step-by-step explanation:

A triangle can be formed from 2 sides of any length.

The third side must be longer than the difference of the other 2 sides and

the third side must be less than the sum of the other 2 sides.

(if this question is from k12 lesson check)

Santa has many toy to deliver on elm street. If there are 48 kids that live on elm street and 12 of them are boys, what is the ratio of girls to boys ?

Answers

Answer:

36 to 12

Step-by-step explanation:

subtract 12 from 48 an you get 36 girls

what is the partial product for 1,600 and 280

Answers

Answer:

Hope this helps!

Step-by-step explanation:

Answer:

Step-by-step explanation:

The head of maintenance at XYZ Rent-A-Car believes that the mean number of miles between services is 3408 miles, with a variance of 249,001. If he is correct, what is the probability that the mean of a sample of 36 cars would be less than 3245 miles

Answers

Answer:

The probability that the mean of a sample of 36 cars would be less than 3245 miles

P(X⁻≤3245) = 0.975

Step-by-step explanation:

Step(i):-

The mean number of miles between services

                   μ= 3408 miles  

The Variance of miles between services

                σ² = 249,001

                σ = √249,001 = 499

Let 'X' be a random variable in a normal distribution

Given sample size 'n' =36

Step(ii):-

           [tex]Z = \frac{x^{-}-mean }{\frac{S.D}{\sqrt{n} } }[/tex]

          Z = -163/83.16 = 1.96

The probability that the mean of a sample of 36 cars would be less than 3245 miles

P(X⁻≤3245)  =   P(Z≤1.96)

                   =   0.5 + A(1.96)

                   =  0.5 + 0.4750

                  =   0.975

Final answer:-

The probability that the mean of a sample of 36 cars would be less than 3245 miles

P(X⁻≤3245) =0.975

           

         

         

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