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3 years ago

Which property do you use to solve 6x=42?

Mathematics

1 answer:

OLEGan [10]3 years ago

8 0

Multiplication property of equality

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-13x+4x=-39+18x what is X??????

Vinil7 [7]

X= 1.4
First, you combine like terms

-13x + 4x = -9x

Then you subtract 18x from each side so you can get -39 by itself

-9x -18x = -27x

Next you divide -27x by -27 and -39 by -27

-27/-27 = 1x

-39/-27 = 1.4

So X= 1.4

6 0

2 years ago

Read 2 more answers

At 10:05 a.m., there are 2 microscopic bacteria cells in the bottle. At 10:15 a.m., there are 8 cells in the bottle.

zloy xaker [14]

Answer: At 10:20 a.m., there will be 16 cells in the bottle.

At 10:30 a.m. there will be 64 cells in the bottle .

Step-by-step explanation:

Since we have given that

At 10:05 a.m. number of microscopic bacteria cells in the bottle = 2

At 10:15 a.m. number of microscopic bacteria cells in the bottle = 8

It means in every 5 times the number of microscopic bacteria cells in the bacteria gets twice itself.

So, by following the same pattern we can get that,

At 10:20 a.m. number of microscopic bacteria cells in the bottle is given by

$8\times 2=16$

Hence, At 10:20 a.m., there will be 16 cells in the bottle.

Similarly,

At 10:25 a.m. number of microscopic bacteria cells in the bottle is given by

$16\times 2=32$

At 10:30 a.m. number of microscopic bacteria cells in the bottle will be

$32\times 2=64$

Hence, At 10:30 a.m. there will be 64 cells in the bottle .

8 0

3 years ago

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If y varies directly as x, and y is 20 when x is 4, what is the constant of variation for this relation?

VARVARA [1.3K]

Answer:

k = 5

Step-by-step explanation:

Given y varies directly as x then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition y = 20 when x = 4, then

20 = 4k ( divide both sides by 4 )

5 = k

3 0

3 years ago

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A rectangular yard measuring 24 ft by 44 ft is bordered (and surrounded) by a fence. Inside, a walk that is 2 ft wide goes all t

Gnoma [55]

1 - First we can determine the area of the yard alone by doing:

22 feet x 44 feet = 968 feet squared

2 - Then, we can calculate the area of the walk by first subtracting two from the original values given ( 22 and 44 ), and then subtract the area of the yard with the value given in the equation we setup and solved below:

(22-2) x (44-2) = 20 x 42 = 840 feet squared

3 - Stated in step 2, subtract 840 from the yard's area ( 968 feet squared ) to determine the space that is left over, that'll represent the 'walk' in this case:

968 - 840 = 128 feet squared

4 - Final Answer:

The area of the walk is 128 feet squared.

6 0

3 years ago

How are exponents and powers different?<br> (DON'T GOOGLE IT!)

Rasek [7]

Answer:

The power is larger than the exponet

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers