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3 years ago

How to find the speed m/sec

2 answers:

7 0

We can find the speed by using the formula.and that is: 

speed=distance travelled by body/time taken

For eg: If a car covers a distance of 30m in 5 second.then the speed of car will be 6 m/s.

<h2>Hope this will make u understand...</h2>

Tresset [83]3 years ago

5 0

Answer:

Below.

Step-by-step explanation:

Speed = distance / time.

For example, if I walk 200 meters in 100 seconds, I divide 200 by 100.

So my speed is 200/100 = 2 m/sec.

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The ratio of quarters to dimes in a coin collection is 5 : 3. You add the same number of new quarters as dimes to the collection

german

There are 5 quarters and 3 dimes.

Let's illustrate it as $\frac{5}{3}$

Now adding 5 quarters and 5 dimes, we get $\frac{10}{8}$ .

5/3 is not equal to 10/8 hence it no longers has the ratio of 5:3 but now has the ratio of 5:4

7 0

3 years ago

Read 2 more answers

Which of the following are perpendicular to the line y=-1/3x+5 (three answers)

Mkey [24]

Y = -1/3x + 5....slope here is -1/3. A perpendicular line will have a negative reciprocal slope. All that means is " flip " the slope and change the sign. So ur perpendicular line will have a slope of 3.

y = 3x....has a slope of 3, so this is perpendicular.
3x - y = 2.....y = 3x- 2.....has a slope of 3 and is therefore perpendicular
3x - y = 6.....y = 3x - 6...has a slope of 3 and is perpendicular

6 0

3 years ago

Please help with my last question.

Bas_tet [7]

Answer:

x = 8.3

y = 20.3

Step-by-step explanation:

$21-\frac{2}{3} = 20\frac{1}{3}$ or $20.3$

$9-\frac{2}{3} = 8\frac{1}{3}$ or $8.3$

6 0

3 years ago

Given: Q = 7m + 3n, R = 11 - 2m, S = n + 5, and T = -m - 3n + 8.

Margarita [4]

If you would like to simplify Q + S - T, you can do this using the following steps:

Q = 7m + 3n,
R = 11 - 2m,
S = n + 5,
T = -m - 3n + 8

Q + S - T = 7m + 3n + n + 5 - (-m - 3n + 8) = 7m + 3n + n + 5 + m + 3n - 8 = 8m + 7n - 3

The correct result would be 8m + 7n - 3.

5 0

3 years ago

How do you determine the y-intercept and the x-intercept in an algebraic equation? I'm trying to figure out how to tell which is

natka813 [3]

If you want to find the x-intercept, you replace y in the equation with 0 and solve the equation for x.
If you want to find the y-intercept, you replace x in the equation with 0 and solve the equation for y.

Example:
$y=2x+5\\\\
\hbox{x-intercept}\\
0=2x+5\\
2x=-5\\
x=-2.5\\
\hbox{x-intercept is } (-2.5,0)\\\\
\hbox{y-intercept}\\
y=2\cdot0+5\\
y=5\\
\hbox{y-intercept is }(0,5)$

4 0

3 years ago