All categories

2 years ago

Two planes travel at a constant speed. Plane A travels 2,800 miles in 5 hours. Plane B travels 3,885 miles in 7 hours.

Mathematics

2 answers:

kozerog [31]2 years ago

5 0

Answer: First.

Step-by-step explanation:

Let's find the speed of the first airplane:

2800 ÷ 5 = 560 (miles per hour)

Let's find the speed of the second plane:

3885 ÷ 7 = 555 (miles per hour)

Thus, the first plane flies faster than the second.

Verdich [7]2 years ago

3 0

The first plane is faster.

The first plane travels at 560 miles per hour. The comparisons are 2 hours apart. Add 560 2 times to 2800 and you get 3,920 which is greater than 3,885, the original number of MPH for the second plane.

Meaning the first plane is faster.

You might be interested in

3. Rewrite the expression as simply as you can: 3x + 11y - 2x - 4y

vfiekz [6]

Answer:

x+7y

Step-by-step explanation:

First off, lets split the question into both x and y.

3x - 2x for the x

11y - 4y for the y

You can solve both of them to get x + 7y

3x - 2x = x

11y - 4y = 7y

Then, add them back up and get x + 7y

7 0

3 years ago

Read 2 more answers

5. David Read's the problem:

vladimir1956 [14]

Answer:

No, David's answer does not seem reasonable.

Let x= original purchase amount

25x = $10.25, so solve for x by dividing both sides by .25, and you get x = $41.

If the shirt was $18, the shorts must have been $41-$18 = $23 NOT $41.

Step-by-step explanation:

7 0

3 years ago

Please answer this question fast in 2 minutes

Dafna1 [17]

Answer:

Angle 4 as it is across from 1 and is equal in size

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

if you’re good with set theory in math 30 please help with questions 31 and 32!! real answers only !!

GREYUIT [131]

Answer: 31) d 32) c

Step-by-step explanation:

31)

A = {1, 3, 5, 15}

B = {2, 3, 5, 7}

A ∪ B = {1, 2, 3, 5, 7, 15}

C = {2, 4, 6, 8}

(A ∪ B) ∩ C = {1, 2, 3, 5, 7, 15} ∩ {2, 4, 6, 8} = {2}

2 is the only number in both sets

32)

The pattern is: reflection, add symbol, ..., reflection, add symbol.

The last image shown is: add symbol

So the next image will be: reflection (flipped to the left)

7 0

3 years ago

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

Natalija [7]

Answer: C & D

Step-by-step explanation:

A binomial experiment must satisfy ALL four of the following:

A fixed number of trials
Each trial is independent of the others
There are only two outcomes (Success & Fail)
The probability of each outcome remains constant from trial to trial.

A) When the spinner is spun three times, X is the sum of the numbers the spinner lands on.

→ #3 is not satisfied (#4 is also not satisfied)

B) When the spinner is spun multiple times ...

→ #1 is not satisfied

C) When the spinner is spun four times, X is the number of times the spinner does not land on an odd number.

→ Satisfies ALL FOUR

A fixed number of trials = 4
Each trial is independent of the others = each spin is separate
There are only two outcomes = Not Odd & Odd
The probability of each outcome remains constant from trial to trial = P(X = not odd) = 0.50 for each spin

D) When the spinner is spun five times, X is the number of times the spinner lands on 1.

→ Satisfies ALL FOUR

A fixed number of trials = 5
Each trial is independent of the others = each spin is separate
There are only two outcomes = 1 & Not 1
The probability of each outcome remains constant from trial to trial = P(X = 1) = 0.17 for each spin

3 0

3 years ago