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2 years ago

A submarine is at the depth of -300 meters. It is rising 50 meters every hour. What is the depth of the submarine after 4 hours?

Mathematics

1 answer:

Alona [7]2 years ago

4 0

The answer is -100. This is because 50 x 4 = 200 and -300+200=-100

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State whether the two triangles below are congruent? B А С Q S R

tamaranim1 [39]

Answer:

Congruent

Step-by-step explanation:

There are 2 angles and a side that are congruent in both triangles. Therefore, they are congruent through AAS.

5 0

2 years ago

Read 2 more answers

Using the graphing function on your calculator, find the solution to the system

LekaFEV [45]

Answer:

The expression that comes after solving the two linear equation is independent of variables So , The system of equations has no solutions

Step-by-step explanation:

Given two linear equations as :

2 y - 4 x = 6 .......1

y - 2 x = 7

Or, y = 2 x + 7 .......2

Now, Solving these two equations

Put the value of y from eq 2 into eq1

So, 2 y - 4 x = 6

∴ 2 × (2 x + 7) - 4 x = 6

Or, 4 x + 14 - 4 x = 6

or, (4 x - 4 x) = 6 - 14

i.e 0 = - 8

∵ The expression that comes after solving the two linear equation is independent of variables So , The system of equations has no solutions Answer

7 0

3 years ago

Find the solution set of the following equations: 2y=2x+7 X=y+2

kirill115 [55]

Answer:

The system of equations has no solution.

Step-by-step explanation:

Given the system of equations

2y = 2x+7

x = y+2

solving the system of equations

$\begin{bmatrix}2y=2x+7\\ x=y+2\end{bmatrix}$

Arrange equation variables for elimination

$\begin{bmatrix}2y-2x=7\\ -y+x=2\end{bmatrix}$

Multiply -y+x=2 by 2: -2y+2x=4

$\begin{bmatrix}2y-2x=7\\ -2y+2x=4\end{bmatrix}$

so adding

$-2y+2x=4$

$+$

$\underline{2y-2x=7}$

$0=11$

so the system of equations becomes

$\begin{bmatrix}2y-2x=7\\ 0=11\end{bmatrix}$

0 = 11 is false, therefore the system of equations has no solution.

Thus,

No Solution!

3 0

2 years ago

School A has 480 students and 16 classrooms. School B has 192 students and 12 classrooms.

boyakko [2]

Answer:96

Step-by-step explanation:

A; 480/16 = 30 students per classroom

B: 192/12 =16 students per classroom

we need x such that $\frac{480-x}{16} = \frac{192+x}{12}$

which means

(480-x )* 12 should be equal to (192+x) * 16

5,760 - 12x = 3,072+16x

5,760 - 3,072 = 12x + 16x

2,688 = 28x

x = 96

3 0

3 years ago

PEF and triangle GHI are similar right triangles.

LekaFEV [45]

Answer: it’s the first 1

Step-by-step explanation:

6 0

2 years ago