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kipiarov [429]
3 years ago
9

What is the value of -3mn + 4m - 3 when m = 2 and n = -4?

Mathematics
2 answers:
photoshop1234 [79]3 years ago
6 0
The value will be 29
grandymaker [24]3 years ago
4 0
-3(2)(-4)+4(2)-3=24+8-3=29

The value is 29
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Mrs. Kang gave Caleb a collection of 25 marbles. Each month Caleb adds 4 marbles to his collection. Which inequality can be used
GarryVolchara [31]

Answer:

I did the math and got an answer of 17.5

Step-by-step explanation:

I divided 70 by 4 and got a result of 17.5. This probably means Caleb started his collection about 17 and 1/2 months ago. (I apologize if it's wrong)

3 0
3 years ago
Read 2 more answers
Help pleaseee 15 points ​
hodyreva [135]

Answer:

55°

Step-by-step explanation:

35°+ 90° + ? =180°

? = 180° - 125°

= 55°

8 0
2 years ago
Read 2 more answers
50 POINTS AND BRAINIEST PLEASE HELP
exis [7]

Answer:

<h2><u>y = -2x</u></h2>

Step-by-step explanation:

If you notice very carefully then you will see that the line passes through the points :

( 1 , - 2 )

( - 1 , 2 )

Hence the value of x = 1 when the value of y = - 2 .

We know that - 2 × 1 = - 2

⇒ - 2 x = y

⇒ y = - 2x

Hence the first OPTION is correct .

Verification :

For points ( - 1 , 2 ) we can write :

y = - 2x

⇒ 2 = - 2 × - 1

⇒ 2 = 2

Hence the answer is verified .

Always try to use the converse of the graphical method .

( Nothing converse is there ... just saying the opposite steps of that method :P )

I mean in graphical method we plot points and then join , here identify the joined points and then make the equation .

5 0
3 years ago
ANOTHER ONE TO TAKE A LOOK AT DOUBLE OR NOTHING
Nutka1998 [239]

Answer:

The answer is 3rd point

Step-by-step explanation:

By looking at the table :

10-10.99,

$15.95 (1 dot)

20-29.99,

$21.52, $25.55, $27.78, $29.90 (4 dots)

30-39.99,

$33.98, $36.77 (2 dots)

40-49.99,

$43.44 (1 dot)

50-59.99,

$51.25 (1 dot)

60-69.99,

$60.54, $64.56, $67.89 (3 dots)

Then you can determine number of dots in each range.

8 0
3 years ago
You have prices to rev
Alex17521 [72]

Answer:

34 minutes

Step-by-step explanation:

Given

Time\ Spent = 6

Phone\ Calls = 40

Required

Number of minutes left to spend (x)

Since there's only 1 minute left to spend on every other call;

Time left = x * 1

Time left = x

The required can further be calculated using:

Time\ Spent + Time\ Left = Phone\ Calls

This gives:

6 + x = 40

Subtract 6 from both sides

x = 40 - 6

x = 34

<em>Hence, there are 34 minutes left to spend</em>

8 0
3 years ago
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