All categories

3 years ago

A plane flies 1640 miles in 4 hours . What is the average speed of the plane ??

Mathematics

2 answers:

tankabanditka [31]3 years ago

8 0

Answer:

410 mph

Step-by-step explanation:

$average \: speed \\ = \frac{1640}{4} \\ = 410 \: mph$

Mariana [72]3 years ago

6 0

Answer:

410 miles

Step-by-step explanation:

total distance covered (d) = 1640 miles

total time taken (t) = 4 hrs

average distance per hour= d/t

= 1640/4

= 410 miles

You might be interested in

Suppose that replacement times for washing machines are normally distributed with a mean of 9.3 years and a standard deviation o

Ad libitum [116K]

The probability will be found as follows:
z-score is given by:
z=(x-μ)/σ
where:
mean-μ=9.3
standard deviation-σ=1.1
but
σ/√n=1.1/√70=0.1315
thus the z-score will be:
z=(9.1-9.3)/0.1315
z=-1.5209
thus:
P(x<9.1)=P(z<-1.5209)=0.0643

7 0

3 years ago

Find the value of x and y

NISA [10]

The answer is C. For sure

3 0

2 years ago

Witch of the following could be a horizontal cross-section of a cylinder

vagabundo [1.1K]

The answer is C. Circle

Hope this helps :)

6 0

3 years ago

A composition of reflections across two intersecting lines is a _____

kogti [31]

A composition of reflections across two intersecting lines is a rotation.

I hope helped ^^

4 0

3 years ago

Help please I'm stuck show and explain your work

Deffense [45]

The expressions D, E, and F represent a correct solution to the equation.

Step-by-step explanation:

Step 1:

First, we need to solve the given equation and find the value of x which satisfies the equation.

$6(x+4)=20, (x+4) = \frac{20}{6} = 3.333,$

$x = 3.333 - 4 = -0.666.$

So the value of x for the given equation is -0.666.

Step 2:

Now we evaluate the values of the six given options to see which ones have an x value of -0.666.

A. $\frac{20-4}{6}= \frac{16}{6} = 2.666,$

B. $\frac{1}{6} (20-4)= \frac{1}{6} (16)=\frac{16}{6} = 2.666,$

C. 20 -6 -4 = 20 - 10 = 10.

D. $\frac{20}{6} -4= 3.333 - 4 = -0.666,$

E. $\frac{1}{6} (20-24) = \frac{1}{6} (-4)= -0.666,$

F. $(20-24)\frac{1}{6} = (-4)\frac{1}{6} = -0.666.$

So the options D, E, and F represent a correct solution to the given equation.

7 0

3 years ago