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4 years ago

Find the average speed in km/hr of 700m travelled in 5 minutes.

Mathematics

1 answer:

elena55 [62]4 years ago

4 0

Ok...
700 m = 0.7 km
5 minutes = 5/60 hours
Then, speed is:
S= 0.7 km / (5/60) hours = 8.4 km/hola
Good luck!
M.

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Graphically determine the slopes of the line segments that create triangle ACD shown below. Write your final slopes in simplest

a_sh-v [17]

Answer:

Step-by-step explanation:

From the graph attached,

Coordinates of points A, C and D are,

A(-2, -7), C(-6, 7) and D(9, 2)

Slope of AD = $\frac{y_2-y_1}{x_2-x_1}$

= $\frac{-7-2}{-2-9}$

= $\frac{9}{11}$

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= $-\frac{14}{4}$

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3 years ago

A rocket is launched into the air. The height h(t), in yards, of the rocket is a function of time, t, in seconds, as shown in th

Mrac [35]

The answer is 5) 20

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3 years ago

at a clothing store, levi's jeans are on sale for 40% off. sales tax is 7%. which expression will calculate the total cost of le

aleksandrvk [35]

Given:

Discount = 40%

Sales tax = 7%

To find:

The total cost of levi jeans with an original price of x.

Solution:

Let x be the original price of the jeans. Then the price after 40% discount is

$Price=x-40\%\text{ of }x$

$Price=x-\dfrac{40}{100}x$

$Price=x-0.4x$

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The price after 7% of sales tax.

$Price=0.6x+7\%\text{ of }0.6x$

$Price=0.6x+\dfrac{7}{100}\times 0.6x$

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4 0

3 years ago

Pls help asapp picture attached

Olin [163]

Answer:

Step-by-step explanation:

Angle 1 is 110.

Angle 3 is 2x plus 10.

Angle 1 and 3 are vertically opposite angles.

And vertically opposite angles r equal.

Which means, angle 1=angle 3,and angle 2=angke 4.

Here we only Need angle 2 and 3.

Angke 2= angle 3.

Which is 2x plus 10=110.

Therefore 2x=110-10=100

Therefore x = 100÷2=50

There u have it ma'am.

3 0

3 years ago

Read 2 more answers

Plz help! (I will give brainliest)

lianna [129]

Answer:

25 mph, 5 mph

Step-by-step explanation:

Speed of the boat = x
Speed of the current = y

Travel downstream, speed is:

x + y = 120/4 = 30

Travel upstream, speed is:

x - y = 120/6 = 20

Add up the equations:

x + y + x - y = 30 + 20
2x = 50
x = 25

Find y:

y = 25 - 20 = 5

Speed of the boat is 25 mph

Speed of the current is 5 mph

7 0

3 years ago