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2 years ago

Hell me please 1 isnt right

Mathematics

2 answers:

ruslelena [56]2 years ago

8 0

Answer:

2,040

Step-by-step explanation:

That's what the calculator said (￣▽￣)"

Ber [7]2 years ago

6 0

Step-by-step explanation:

I got this much.....

I am sorry of it gets wrong

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5 days 6 hours 20 minutes minus 3 days 8 hours 40 minutes plz help will make brainliest

Blababa [14]

Answer:

1 day 21 hours 40 minutes

Step-by-step explanation:

5 days 6 hours 20 minutes

- 3 days 8 hours 40 minutes

============================

We will need to borrow minutes from the hours because we don't have enough.

1 hour = 60 minutes

6-1 = 5 hours

20 +60 = 80 minutes

5 days 5 hours 80 minutes

- 3 days 8 hours 40 minutes

==========================

We will need to borrow hours from the days because we don't have enough.

1 day = 24 hours

5 -1 =4 days

5 + 24 = 29 hours

4 days 29 hours 80 minutes

- 3 days 8 hours 40 minutes

==========================

1 day 21 hours 40 minutes

7 0

3 years ago

Read 2 more answers

Explain how to use a coordinate plane to find the area of a rectangle with vertices (–4, 9), (–4, –3), (–1, –3), and (–1, 9). wh

liberstina [14]

the formula for area of a rectangle is

Area = length x width

since both the length and the width of the rectangle lie on the same x and y axis, we can find the distance between the width and the distance between the length by subtracting

(-4,9) (-4,-3)

these points lie on the same x axis, so they create a vertical line

9-(-3) = 12

12 units is the distance between them

(-4,-3) (-1,-3)

these points lie on the same y axis, so they create a horizontal line

-1-(-4) = 3

3 units is the distance between them

now that we have the length and the width, we can find the area

A = 12 x 3

A = 36 units²

4 0

2 years ago

Read 2 more answers

In order to solve the following system of equations by addition, which of the

Pavlova-9 [17]

Answer:

Multiply the top equation by -3 and the bottom equation by 2

Step-by-step explanation:

Given system of equations:

$\begin{cases}4x-2y=7\\3x-3y=15 \end{cases}$

To solve the given system of equations by addition, make one of the variables in both equations sum to zero. To do this, the chosen variable must have the same coefficient, but it should be negative in one equation and positive in the other, so that when the two equations are added together, the variable is eliminated.

To eliminate the variable y:

Multiply the top equation by -3 to make the coefficient of the y variable 6:

$\implies -3(4x-2y=7) \implies -12x+6y=-21$