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4 years ago

100 points if you guess what number im thinking.1-5

Mathematics

1 answer:

posledela4 years ago

3 0

Answer:

Step-by-step explanation:

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A car travels 2 1/3 miles in 3 1/2 minutes at a constant speed. Write an equation to represent the car travels in miles and minu

Flura [38]

Answer:

The speed of car in miles per minute is $\frac{2}{3}$ miles per minute and

The speed of car in mile per hour is 40 miles per hour,

Step-by-step explanation:

Given as :

The distance cover by car = 2 $\frac{1}{3}$ = $\frac{7}{3}$ miles

The Time taken by car to cover distance = 3 $\frac{1}{2}$ min = $\frac{7}{2}$ min

The speed o car in miles per minute = S miles/min

So, Speed = $\dfrac{\textrm Distance}{\textrm Time}$

Or, S = $\frac{\frac{7}{3}}{\frac{7}{2}}$ mie per min

∴ S = $\frac{2}{3}$ miles per minute

Now, Let The speed of car in miles per hour = x miles/h

So, Time in hour = $\frac{7}{2}$ × $\frac{1}{60}$ = $\frac{7}{120}$ hours

So , Speed = $\dfrac{\textrm Distance}{\textrm Time}$

Or, x = $\frac{\frac{7}{3}}{\frac{7}{120}}$ miles per hours

Or, x = 40 miles per hours

Hence The speed of car in miles per minute is $\frac{2}{3}$ miles per minute and the speed of car in mile per hour is 40 miles per hour, answer

7 0

4 years ago

10 less than a number

KiRa [710]

madarchod bhosadike bhen ke lode etc

4 0

3 years ago

When solve an equation using the difference quotient, do I put the equation into the difference quotient, or the difference quot

zavuch27 [327]

I'm not sure let me ask this girl I know her name is Jade

8 0

4 years ago

Consider the vectors x=(1,2,3,4) and y=(4,2,4,5) in R4 . Find the angle between them.

Law Incorporation [45]

Answer:

Angle between the two vectors is 20.7718°.

Step-by-step explanation:

The given two vectors are x = (1,2,3,4) and y = (4,2,4,5)

Now the dot product between two vector is defined as

x.y = ║x║║y║cosθ

Now, x.y( dot product of x and y) = 1×4 + 2×2 + 3×4 + 4×5 = 40

║x║= $\sqrt{1+4+9+16}$ = $\sqrt{30}$

║y║= $\SQRT{16+4+16+25} = \sqrt{61}$ '

Thus, we get

40 = $\sqrt{30}$ × $\sqrt{61}$ ×Cos θ

Thus, Cos θ = $\frac{40}{\sqrt{30}\sqrt{61}}$

Cos θ = 0.935

θ = $Cos^{-1} (0.935)$

θ = 20.7718°

4 0

3 years ago

Find the lateral and surface area of a cone with an altitude of 5 and a slant height of 91/2 feet

GuDViN [60]

Answer:

sry i cant i to dubm need points tho

Step-by-step explanation:

4 0

3 years ago