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mina [271]
3 years ago
8

What is the volume of a cube with a side length that measures 8cm? ANWSER ASAP please

Mathematics
2 answers:
ozzi3 years ago
7 0
V=512cm3 if tell me if this works your wellcome
NeTakaya3 years ago
3 0
What you do is 8 x 8 x 8 and cube your number 
=512
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Bob purchased 2 hot dogs and 1 hamburger for S10. Later that day, Bob had to purchase more food and
Tom [10]

Answer:

Hotdog: $3.00

Hamburger: $4.00

Step-by-step explanation:

For the first time that Bob buys food, we can make an equation to find how much a single hotdog and a single hamburger costs, where:

x = cost of a hotdog

y = cost of a hamburger

He bought 2 hotdogs and 1 hamburger for $10, so the equation for his first time buying food is:

2x + y = 10

For the second time buying food, he bought 1 hotdog and 3 hamburgers for $15, so his equation would be:

x + 3y = 15

To find the value for x and y we need to solve this system of equations using the two equations we just came up with. We can do this multiple ways, but I'll be demonstrating the substitution method.

Using the second equation, we can solve for x by simply subtracting 3y from both sides:

x = 15 - 3y

We can then insert this value of x into the first equation so that way we are only dealing with one variable to solve - y:

2(15-3y) + y = 10

Distribute out the 2 into the paratheses, combine like terms, and then solve for y:

30 - 6y + y = 10

30 - 5y = 10

-5y = -20

y = 4

This means the cost for one hamburger is $4. But we still need to find the price of one hotdog, so we can insert this value of y into the equation we came up with earlier for x, and then solve for x:

x = 15 - 3y

x = 15 - 3(4)

x = 15 - 12

x = 3

So the price of one hotdog is $3 and the price of one hamburger is $4. Hope this helps.

3 0
3 years ago
What is the value of x?
denis-greek [22]

Answer:

x = 17

Step-by-step explanation:

Hi there!

Because this is an isosceles triangle, we know that the angles measuring (x+17°) and (4x+34°) are congruent. Knowing this, we can set up the following equation and solve for <em>x</em>:

x+17 = 4x-34

17 = 3x-34

0 = 3x-51

3x = 51

x = 17

Therefore, the value of <em>x</em> is 17.

I hope this helps!

8 0
2 years ago
Read 2 more answers
From this given statement, select the definition , property, postulate, or theorem that justifies the prove statement.
USPshnik [31]
Additive property of equality states that:

if a=b, then a+c = b+c, 

that is, if 2 quantities of the same value are added the same quantity, they are again equal.


In our problem a=AD, b=DB,    and c= CD=DE

thus a+c=b+c means <span>AD + CD = DE + DE, 

by the </span><span>Addition Property


Answer: </span><span>Addition Property

</span>
5 0
3 years ago
Plez help What is the value of y in the equation 4 + y = −3?<br><br> 7<br> 1<br> −1<br> −7
HACTEHA [7]
The value of  y is -7 because you will add 4 on both sides and adding to negatives is adding and keeping the sign of the larger number.
3 0
3 years ago
Read 2 more answers
2x-3y=-14
dezoksy [38]
2x-3y=-14/×(-3) <=>-6x +9y=42
3x-2y=-6/×2<=>6x-4y=-12 se reduce -6x cu 6x si ne ramane 5y=30<=>y=6 , luom o ec care o vrem si inlocuim pe y cu 6 ...3x -2x=-6<=>3x-12=-6<=>3x=6<=>x= 2 , x-y=2-6=-4
8 0
3 years ago
Read 2 more answers
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