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2 years ago

6. 0.3k - 4m (k=20 and m= -2)

Mathematics

2 answers:

antiseptic1488 [7]2 years ago

7 0

The answer is -2. Hope this helps

user100 [1]2 years ago

6 0

Answer: 14

Step-by-step explanation:

Substitute both K and M for its respective numbers.

I got this equation after substituting.

0.3(20) - 4(-2)

Simplify:

6 - (-8)

When we subtract by a negative number, the sign switches from (-) to (+)

So we're left with

6+8 which is 14.

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Novay_Z [31]

The answer is 13 because you would plug in 3(3) which is 9 then you multiply (9)(2) which is 18 they you subtract 18-5 which equals 13

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3 years ago

7t+2r-3t+r what is the answer

Troyanec [42]

This simplifies to 4t+3r

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3 years ago

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Marco is making a kite, using sticks for its diagonals. One stick is 2 feet long and the other is 3 feet long. How much material

Marat540 [252]

Answer:

Marco will need $3\ ft^{2}$ of material to make the kite

Step-by-step explanation:

we know that

To know how much material Marco will need to make the kite, the area must be calculated.

Remember that the area of the kite is equal to

$A=\frac{1}{2}[d1*d2]$

where

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3 years ago

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Select all the common denominators for

Vitek1552 [10]

Answer:

B, E

Step-by-step explanation:

There are a few ways to check for common denominator.

Here is one method

Take the 4 and 10 and see if both numbers will go into the numbers evenly. If they do, it is a common denominator

Will 4 and 10 divide evenly into 10 ?

4 will not go into 10 evenly

10 is not a common denominator.

Will 4 and 10 divide evenly into 20?

4 will go into 20 evenly. 20 /4 = 5

10 will go into 20 evenly 20 / 10 = 2

So 20 is a common denominator

Will 4 and 10 divide evenly into 24?

4 will go into 24 evenly 24 / 4 = 6

10 will not go into 24 evenly

24 is not a common denominator

Will 4 and 10 divide evenly into 32?

4 will go into 32 evenly 32 / 4 = 8

10 will not go into 32 evenly

32 is not a common denominator

Will 4 and 10 divide evenly into 40?

4 will go into 40 evenly 40/4 = 10

10 will go into 40 evenly 40 / 10 = 4

40 is a common denominator

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2 years ago

7.)

I am Lyosha [343]

Answer:

The final temperature for the day was -16 degrees.

Step-by-step explanation:

6-12= -6

-6-10= -16

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3 years ago