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2 years ago

Match the number with its opposite -5.4

Mathematics

2 answers:

kakasveta [241]2 years ago

8 0

5.4 is the answer. The opposite of a negative is a positive and vice versa

exis [7]2 years ago

8 0

It’s obviously 5.4 because that’s the opposite of -5.4

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Find the equation of the line through the points (-2,1) and (5,-20)

ankoles [38]

Answer:

y = -3x - 5

Step-by-step explanation:

First find the slope: (-20 - 1) / (5 - (-2)) = -3

Then plug in one set of points into the equation y = mx + b.

1 = -3(-2) + b

1 = 6 + b

b = -5

So you can get the equation: y = -3x - 5

5 0

2 years ago

The senior class at high school A rented and filled 3 vans and 6 buses with 306 students. High school B rented and filled 1 van

musickatia [10]

Answer:

8 students in each van ~ 22 in each bus

Step-by-step explanation:

- Equations:

8v + 8b = 240

4v + b = 54

------

- Modify:

8v + 8b = 240

8v + 2b = 108

------

- Subtract and solve for "b":

6b = 132

b = 22 (# of students in each bus)

-----

- Solve for "v":

4v + b = 54

4v + 22 = 54

4v = 32

v = 8 (# of students in each van)

7 0

2 years ago

This graph shows a proportional relationship.

Kamila [148]

Answer:

The constant of proportionality is 0.3, or K=0.3.

Step-by-step explanation:
The chart I attached shows points that are plotted on the proportional line. In order to find the constant of proportionality from these points, you have to divide the amount of change by the number of years. For example, 3 divided by 10 or 6 divided by 20. This results in 0.3, which means that every year, there is 0.3 centimeters of change in the sea level.

8 0

2 years ago

PLEASE HELP ME DUE SOON ILL MARK AS BRAINLIEST!!<br> Find M∠1 and M∠3 in the kite.

QveST [7]

Answer:

1 = 39 degrees (some theorem, like triangles sharing a bisector or something sorry)

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2 years ago

Paul can install a 300 hundred square foot hardwood floor in 18 hours. Matt can install the same floor in 22 hours. How long wou

Vadim26 [7]

ANSWER

Paul and Matt will take
$9.9 \: \: hours$
to install the floor working together.

EXPLANATION

First, calculate Paul's rate, which is

$= \frac{1}{18}$

Next, calculate Matt's rate, which is,
$= \frac{1}{22}$

Let us assume that, Paul and Matt took
$x \: hours$
to do the work together.

Then, the rate of working together is,

$= \frac{1}{x}$

Now, add the individual rates and equate to the rate of working together to form an equation that will help us solve for x.

$\frac{1}{18} + \frac{1}{22} = \frac{1}{x}$

Simplify the left hand side

$\frac{11 + 9}{198} = \frac{1}{x}$

$\frac{20}{198} = \frac{1}{x}$

We reciprocate both sides to get (You could have also done cross multiplication).

$\frac{198}{20} = \frac{x}{1}$

$x = 9.9 \: hours$

7 0

3 years ago