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Alchen [17]
3 years ago
13

A toy plane moves at a constant speed of 2m/s. How long will it travel a distance of 42 meters?

Mathematics
1 answer:
Tpy6a [65]3 years ago
7 0

Answer:

option A. 21 sec

Step-by-step explanation:

Speed = the distance over the time

Given:

Speed = 2 m/s  and distance = 42 m and time = t

So,

2 = 42/t

Solve for t

t = 42/2 = 21 sec.

The answer is option A. 21 sec

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3 years ago
Which values for A and B will create infinitely many solutions for this system of equations? Ax-y=8 2x+y=B plss hurry im being t
Lynna [10]

Answer:

A=-2

B=-8

Step-by-step explanation:

In order for the system of linear equations to have infinitely many solution, they must be the same equation.

Ax-y=8

2x+y=B

We need to choose A and B so they are the same equation.

I notice they are both in the same form but in the second column you have opposites;

the -y and y.

So im going to multiply either equation by -1 so that part is exactly the same.

Don't choose both; choose only one.

Let's multiply the first equation by -1.

Doing this gives us the following:

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So now we can choose A and B so these equations appear exactly the same.

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3 years ago
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100.47 because: 33.3+1.4 =34.7
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3 years ago
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