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nika2105 [10]
3 years ago
6

Aron ran 500 meter in 100 seconds. Find the speed in km per hour​

Mathematics
1 answer:
Free_Kalibri [48]3 years ago
5 0

<em>solution</em>

<em>             time taken=100secs</em>

<em>             distance covered=500m=0.5km</em>

<em>As we know,</em>

<em>              speed=distance covered/time taken</em>

<em>                         =0.5km/100secs</em>

<em>                         =0.005km/sec</em>

<h2><em>                 </em></h2><h2><em>              SPEED IS 0.005KM/SEC</em></h2>
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3 years ago
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A man s five times as old as his son.in three years time,the product of their ages will be 380.
Mademuasel [1]

Answer:

son age: X

man_age= 5X

in 3 years: we have:  (man_age+3)(X+3)=380

we can replace the man age by 5X and we get :

(5X+3)(X+3)=380

it is a quadratic equation with 2 solutions. One negative and 7

The solution is thus 7, since age can not be negative.

The son is thus 7 and the dad 5 times more 35

Step-by-step explanation:

6 0
4 years ago
Which equation can be used to calculate the surface area of the triangular prism net show below? The net of a rectangular prism.
gizmo_the_mogwai [7]

The  13\times10+12\times10+5\times10+\rm \frac{1}{2} \times 5 \times12+\rm \frac{1}{2} \times 5 \times12  equation can be used to calculate the surface area of the triangular prism.

It is given that the triangular prism net showing in the figure with dimensions.

It is required to find which equation can be used to find the surface area of the triangular prism net.

<h3>What is surface area?</h3>

It is defined as the area of 3-dimensional geometry surfaces area sum which is occupying the outer area of the object.

We know the area of a rectangle = length × width

Area of the top rectangle = 13×10

Area of the middle rectangle = 12×10

Area of bottom rectangle=  5×10

The formula for finding the area of a triangle:

\rm A=\frac{1}{2} \times bh

Area of right triangle = \rm \frac{1}{2} \times 5 \times12

Area of left triangle = \rm \frac{1}{2} \times 5 \times12

The surface area = Area of top+ Area of middle+ Area of bottom+ Area of    

                                a right triangle+ Area of the left triangle  

=13\times10+12\times10+5\times10+\rm \frac{1}{2} \times 5 \times12+\rm \frac{1}{2} \times 5 \times12

Thus, the 13\times10+12\times10+5\times10+\rm \frac{1}{2} \times 5 \times12+\rm \frac{1}{2} \times 5 \times12  equation can be used to calculate the surface area of the triangular prism.

Learn more about the surface area here:

brainly.com/question/1196953

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The function f(x) = 2(3. 5)x is reflected across the x-axis to create g(x). What is the function definition of g(x)? g(x) = (3.
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Answer: Search it there is a video to help

Step-by-step explanation:

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