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3 years ago

A salt march harvest mouse ran a 360 cm straight course race in 9 seconds. How fast did it learn

Mathematics

2 answers:

Makovka662 [10]3 years ago

6 0

Answer: $40c m/s$

Solution:

Mouse ran 360 cm straight course race in 9 seconds.

We need to find the rate or speed of mouse

We know the speed formula is distance covered by given time.

$Speed=\frac{Distance}{Time}$

Where,

Distance = 360 cm

Time = 9 seconds

$\therefore$ speed $=\frac{360}{9}$

Speed=40 cm/s

Mouse ran with speed 40 cm/s

artcher [175]3 years ago

3 0

Distance covered by by the harvest mouse= 360 cm

Or distance covered by by the harvest mouse= 360 /100= 3.60 m

Time taken to cover the above distance= 9 s

We know,

Speed= distance covered/time taken to cover that distance

Speed= 3.60/9= 0.4 m/s

Therefore, the mouse ran 0.4 m/s fast.

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How to find the length of a major arc

yuradex [85]

To find arc length, start by dividing the arc's central angle in degrees by 360. Then, multiply that number by the radius of the circle. Finally, multiply that number by 2 × pi to find the arc length.

8 0

4 years ago

Maricella solves for x in the equation 4x-2(3x-4)+4=-x+3(x+1)+1. She begins by adding –4 + 4 on the left side of the equation an

Elodia [21]

Maricella’s strategy is incorrect as the values added on the left and right side of the equation changes the original equation $4x-2(3x-4)+4=-x+3(x+1)+1$ to $4x-2(3x-4)+4=-x+3(x+1)+3$ .

Further explanation:

Maricella begin by adding $-4+4$ on the left side of the equation and $1+1$ on the right side of the equation $4x-2(3x-4)+4=-x+3(x+1)+1$ .

The value added on the left is equal to zero so it does not change the equation but the value added on the right is 2, a non-zero digit so it changes the equation as shown below.

$4x-2(3x-4)+4-4+4=-x+3(x+1)+1+1+1\\4x-2(3x-4)+4+0=-x+3(x+1)+1+2\\4x-2(3x-4)+4=-x+3(x+1)+3$

Therefore, the strategy used by Maricella will change the equation and so the solution of the equation will be incorrect.

One way of solving such a linear equation is by adding or subtracting the required value on each side of the equation. and then simplifying the further equation.

Similarly, the other way to solve any linear equation is by separating the variable terms on one side of the equation and constant terms on the other side of the equation.

After this simplify the linear equation to obtain the solution of the equation for $x$ .

Whereas Maricella’s strategy fails to solve the equation $4x-2(3x-4)+4=-x+3(x+1)+1$ since the values added and subtracted in the equation changes the original equation completely.

Learn more:

1. Linear equation application brainly.com/question/2479097

2. To solve one variable linear equation brainly.com/question/1682776

3. Binomial and trinomial expression brainly.com/question/1394854

Answer details

Grade: Middle school

Subject: Mathematics

Chapter: Linear equation

Keywords: equation, linear equation, Maricella, right side, left side, strategy, solve for $x$ , adding, subtracting, variable, constant, solution of the equation, value, original equation, variable terms, constant terms.