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marta [7]
3 years ago
11

Use addition to solve the linear system of equations. Include all of your work in your final answer.

Mathematics
1 answer:
love history [14]3 years ago
4 0
We have that
<span>x - y = 4-------> multiply by -1-----> -x+y=-4-----> equation 1
x+ 2y = 4------> equation 2

add equation 1 and equation 2
-x+y=-4
x+2y=4
-----------------
0+3y=0-----> y=0
x+2y=4------> x+0=4------>x=4

the solution is the point (4,0)</span>
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Give the most convincing explanation you can for why a=c. (Be detailed)<br> please help me
Jlenok [28]

Answer:

a = c because they are vertical angles. vertical angles are alway congruent because they are bascially the same shape. it's a rule.

7 0
4 years ago
Use the formula to solve the problem. Round to the nearest hundredth.
Zepler [3.9K]

Answer:

Volume of sphere = 4.186 cubic inches

Step-by-step explanation:

Radius of sphere = r = 1 inch

Volume of sphere = ?

The formula used is: Volume\:of\:sphere=\frac{4}{3}\pi r^3

Putting value of radius and π and finding volume:

Volume\:of\:sphere=\frac{4}{3}\pi r^3\\Volume\:of\:sphere=\frac{4}{3}\times 3.14\times (1)^3\\Volume\:of\:sphere=\frac{4}{3}\times 3.14\times (1)^3\\Volume\:of\:sphere=4.186 \:cubic\:in

So, Volume of sphere = 4.186 cubic inches

7 0
3 years ago
Alice syas that all the factors of are even
marishachu [46]

<u>Answer:</u>

<u>Alice says that all the factors of 8 are even . </u>

<u> </u>

<u>Solution: </u>

<u>Absolutely Alice is wrong. </u>

<u> </u>

<u>As we know that the factors of any number are those numbers which can divide that number completely. </u>

<u> </u>

<u>so, factors of 8 are 1,2,4 and 8. </u>

<u>Here one can see easily from all the four factors of 8 ,2,4,8 are even but 1 is odd. </u>

<u> </u>

<u>so,this is the example and Explanation that statement of Alice is wrong.</u>

<u>Step-by-step explanation:</u>

7 0
3 years ago
A bus makes a stop at 2:30, letting off 11 people and letting on 8. The bus makes another stop ten minutes later to let off 5 mo
Dafna11 [192]

Answer:

The actual number of passengers on the bus falling by 8 after the second stop

Step-by-step explanation:

Assume that the total passengers on the bus before 2:30 was x

At 2:30:

11 passengers got off and 8 got on.

So, the number of passengers

= x - 11 + 8

= x - 3

10 minutes later:

5 passengers got off the bus

So, the number of passengers

number of passengers = (x - 3) - 5

number of passengers = x - 8

now by comparing,

The actual number of passengers on the bus falling by 8 after the second stop

8 0
3 years ago
What is 5 x 3/4 in fraction form
nata0808 [166]
15/4 would be your answer
7 0
3 years ago
Read 2 more answers
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