PLEASE HELP ME SEE IF MY ANSWERS ARE CORRECT!!!!!!!

Answers

Answer 1

Answer: so first one
'how many solutions does 2x-y=-5 and 2x+y=5 have?'
add and get
2x-y-5
plus
2x+y=5

equals
2x+2x+y-y=5-5
4x=0
x=0 always
solve for y
4(0)+y=5
y=5
the solution is (0,5)
only ONE solution

one way is to subsitute
just remember that it is in (x,y) form so
the pont (1,2) means that 1 solution is x=1 and y=2 so subsitute and find that
the first one is the answer you are correct

just look at the graph
the solution is the intersection
it seems to be at a point that is 3 units to the right and -6 units up (6 units down)
so the solution is (3,-6)
yo are corect

subsitution
y=y
therefor
the answe ris (-4,-14) if you did the math correctly

#8 is correct

# 9 is correct

# 10 the answe ris bananas=0.40 pears=0.60

the last one you got it wrong, remember to check your answer to the graph for commonsense
then answer is (-2,5) and (1,2)

Related Questions

Plz help asap!!!!!!!!!!!
Please help thank you guys
Order from least to greatest 7.081 , 7.81 , 7.002 , 7.14
U can help me with this
What is 3 7/9 as an improper fraction?

The number of right handed students in a mathematics class is nine time the number of left handed students. The total number of students in the class is 30. How many right handed students are in the class? How many left handed are in the class?

Answers

3 left hand people there is the answer

the answer will be 3 left handed people

On a local sports team, 70% of 50 players are right handed. How many right handed players are there?

Answers

Answer: 35

Step-by-step explanation: So first we take 50 and multiply it by 70%. In decimal form, 70%=0.70. This should give you 35 players that are right handed if you multiply 50*0.70

The answer is 35!!!!!!

A submarine is diving to a total depth of 45 feet. It descends 15% of the total depth in 1 minute. How deep will the submarine be after 4 minutes?

Answers

15% of 45 is 0.15 x 45 or 6.75 feet. That's how far the submarine descended in 1 minute. So, in 4 minutes the submarine would be 4 x 6.75 feet down which is 27 feet.

Answer:

-27

Step-by-step explanation:

Which is bigger 2/3 or 1/3?

Answers

2/3 is bigger than 1/3......TO CHECK this answer 2/3=66% or .66 and 1/3=33% or .33

Therefore, 2/3(66%) is greater than 1/3(33%)

2/3>1/3

2/3 Is bigger
2/3 = .66
1/3 = .33
66 is larger than 33.

Fractons that are bigger than 1/3 are: 2/3 3/3 4/3

The school concert raised $1360 from the sale of 400 tickets. If adult tickets cost $5 and student tickets $3, how many student tickets were sold?

Answers

To find the number of student tickets sold, we can use a system of equations. The number of student tickets sold is 320.

To find the number of student tickets sold, we can use a system of equations.

Let's represent the number of adult tickets sold as 'A' and the number of student tickets sold as 'S'. From the given information, we know that A + S = 400 (equation 1) and 5A + 3S = 1360 (equation 2).

We can solve this system of equations by substitution or elimination method:

Using the substitution method, we can solve equation 1 for A:

A = 400 - S

Substituting A in equation 2:

5(400 - S) + 3S = 1360

2000 - 5S + 3S = 1360

2000 - 2S = 1360

-2S = -640

S = 320

Therefore, 320 student tickets were sold.

For more such questions on tickets, click on:

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You would use a system of equations.
A= adult tickets sold
S= student tickets sold
A+S=400
5A+3S=1360

-3(A+S=400)= -3A-3S=-1200 +
5A+3S=1360 =
2A = 160 so A=80

now when you plug 80 into the original equation you get 80 + S = 400 so S=320

80 Adult tickets were sold and 320 student tickets were sold.

What is another way to express 3/5 1) 0.2

2) 0.3

3) 0.5

4) 0.6

Answers

You would divide 3 by 5. You would get 0.6.6 is your answer.