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3 years ago

А. 3xВ. 63с. зD. 6х2please help ??

Mathematics

2 answers:

Alja [10]3 years ago

5 0

Volume = height x width x length
x times x times x
So the answer is C, x^3

max2010maxim [7]3 years ago

3 0

I think it’s x^3, plug in x for each variable lxwxh=v and since there are no coefficients there wouldn’t be a coefficient in the answer. i hope i answered in time lol

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Joel made egg sandwiches and tuna sandwiches in the ratio 2:3. He then made 15 more tuna sandwiches and the ratio changed to 1:3

Aleksandr [31]

Answer:

40 sandwiches

Step-by-step explanation:

egg sandwiches : tuna sandwiches

2 : 3

Multiply by x because we do not know how many sandwiches, just the ratio

2x : 3x

Add 15 tuna sandwiches

2x : 3x+15

Now the ratio is 1:3

egg sandwiches : tuna sandwiches

1 : 3

Multiply by y because we do not know how many sandwiches, just the ratio

y : 3y

Set the number of egg sandwiches equal

2x =y

then set the number of tuna sandwiches equal

3x+15 = 3y

We know have a system of 2 equations and 2 unknowns

Substitute y =2x into the second equation

3x+15 = 3(2x)

Distribute

3x+15 = 6x

Subtract 3x from each side

3x-3x+15 = 6x-3x

15 =3x

Divide by 3

15/3 = 3x/3

5 =x

egg sandwiches : tuna sandwiches

2 : 3

Multiply by x because we do not know how many sandwiches, just the ratio

2x : 3x

2*5 3*5

10 15

He originally made 10 egg sandwiches and 15 tuna sandwiches

Then he made 15 more tuna sandwiches

The total number of sandwiches he made is

10+15+15 = 40 sandwiches

5 0

3 years ago

What is the value of X in 1.2÷0.3= X÷0.4

sashaice [31]

$1.2 \div .3 = 4$
$4 = x \div .4$
multiply both sides by .4 to isolate the x variable.

$4 \times .4 = x$

x = 1.6

8 0

3 years ago

Read 2 more answers

4.5<br>-<br>17 - X 8<br><br>I need help! <br>10 pts

sesenic [268]

Answer:

x = -1.5625

Step-by-step explanation:

Solve for x:

-8 x - 12.5 = 0

Add 12.5` to both sides:

(12.5 - 12.5) - 8 x = 12.5

12.5 - 12.5 = 0:

-8 x = 12.5

Divide both sides of -8 x = 12.5 by -8:

(-8 x)/(-8) = 12.5/(-8)

(-8)/(-8) = 1:

x = 12.5/(-8)

12.5/(-8) = -1.5625:

Answer: x = -1.5625

7 0

3 years ago

What is the approximate circumference of the circle shown below?

aniked [119]

Answer:

D: 109 cm

Step-by-step explanation:

The formula of circumference is

$\pi d$

Diameter =

$17.4 \times 2 = 34.8$

Hence, circumference =

$34.8 \times \pi = 109.32742...$

rounded of to 109.

8 0

3 years ago

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The dairy goats on a farm give 2 gallons of milk each day.<br> How much milk do they give in 5 days?

Dovator [93]

Answer:

$\huge\boxed{\sf 10\ gallons\ of\ milk}$

Step-by-step explanation:

=> 2 gallons of milk each day.

<u>This means</u>

1 day = 2 gallon of milk

Multiply both sides by 5

5 (1 day) = 5 (2 gallons of milk)

<h3>5 days = 10 gallons of milk</h3>

$\rule[225]{225}{2}$

Hope this helped!

4 0

3 years ago

А. 3xВ. 63с. зD. 6х2please help ??​

А. 3xВ. 63с. зD. 6х2please help ??