MATHEMATICS MIDDLE SCHOOL

A plane travels from Pittsburgh to Cleveland in 2 hours.it maintains an average speed of 100 miles per hour.how far apart are these cities?

Answers

Answer 1
Answer:

The distance between Pittsburgh and Cleveland is 200 miles

Solution:

Given that,

Plane travels from Pittsburgh to Cleveland in 2 hours

Average speed of plane = 100 miles per hour

To find: Distance between these two cities

The relation between speed distance and time is given as:

Speed = (distance)/(time)

On rearranging the above formula, we get

distance = speed * time

Distance between these two cities = 100 (miles)/(hour) * 2 hour

Distance = 200 miles

Thus both the cities are 200 miles apart

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PLEASE HELP!!!!!!!!!!!!!BEST ANSWER WORTH 40 POINTS PLEASE HELP!!Which equation is true for any value of y?A. 4y^2+2=(4y*4y)+2B. 4y^2+2=(4y+y)+2C. 4y^2+2=4(y+y)+2D. 4y^2+2= 4(y×y)+2

A newly-planted tree needs to be staked with three wires. Each wire is attached to the trunk 3 feet above the ground, and then anchored to the ground 4 feet from the based of the tree. How much wire is needed for 6 trees?

Answers

Since the total amount of wire is 7, given the three feet above ground and the four feet below, there's three wires per tree, and the six trees required, the ultimate problem is 7 x 3 x 6, or 126 total feet.

What is the value of -|65.6|

Answers

-65.6
Explanation:
The I I signs (forgot how they are called XD) made the number 65.6, but the negative sign outside the I I made the number -65.6
The answer is -65.6 because the negative sign is on the out side of the absolute value signs.

Ed can run 10 miles in 2 hours at a steady rate . how many hours will it take him to run 30 miles ?

Answers

Answer:


Step-by-step explanation:

It should take six hours.

Ten times three would make thirty, doing the same to the number of hours[2 hours] we multiply it by three which leaves us with six miles.

Ed runs thirty miles in six hours.

Answer:

6 hours

10 miles takes 2 hours

so 30 miles will take 6 hours


2 factions have the same numerator but different denominator . is the fraction with the greater denominator greater or less than fraction

Answers

I like visual models so I hope this helps below

There is a 20% chance that it will snow on Monday and a 40% chance on Tuesday. What is the probability that it will NOT snow on both Monday and Tuesday?

Answers

P(Event) = 4/5 * 3/5 = 12/25

----------------------

Y=Yes=Will Snow

N=No=Won't Snow

There is a 20% chance (1/5) that it will snow on Monday. This means that there is an 80% (4/5) chance that it won't snow on Monday.

Y, N, N, N, N

There is a 40% chance (2/5) that it will snow on Tuesday. This means that there is a 60% chance (3/5) that it won't snow on Tuesday.

Y, Y, N, N, N

-----------------------

Create a table for combinations N, N or Y, N or N, Y or Y, Y:

*Where N, N place (X). Where Y, N or N, Y or Y, Y - place (O).

   : Y  N  N  N  N
.................................
Y : O  O  O  O O
Y : O  O  O  O O
N : O  X  X  X  X
N : O  X  X  X  X
N : O  X  X  X  X

The combination N, N represented with (X) appears 12 times out of 25 which is your answer (12/25).
. Solve: 5x < 9x-1 / 2 

-4x < - 1/2 , now divide by -4 and switch signs 

x > 1/8 


2. There is a 20% chance that it will snow on Monday and a 40% chance on Tuesday. What is the probability that it will NOT snow on both Monday and Tuesday? 

P( NOT snow on both Monday and Tuesday) = (1-.2)(1-.4) = 12/25 

c. 12/25 


3. The total cost of renting a sailboat is $120 plus $60 a day. How many days was a sailboat rented if the total cost was $360? Solve. 

120 + 60d = 360 

60d = 360 - 120 = 240 

d = 4 



4. Two cards are chosen at random without replacement from a deck of 52 cards containing 4 kings. Which expression could be used to find the probability of choosing two kings? 

b. 4/52 x 3/51 

There are 4 x 3 ways to pick 2 kings 

There are 52 x 51 ways to pick any two cards

On the lines below write a word problem that involves division and would have a correct answer of 4/7

Answers

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