MATHEMATICS MIDDLE SCHOOL

I need help answering this please

Answers

Answer 1

Answer:

Answer: Choice D) ordered pair is not a solution to the second equation

We can see this by replacing x and y with 1 and -4 respectively

2x + y = 4

2*1 + y = 4 .... replace x with 1

2*1 + (-4) = 4 ... replace y with -4

2 - 4 = 4

-2 = 4 .... this equation is false because -2 and 4 are different values

The last equation being false means that the original equation 2x+y = 4 is also false when (x,y) = (1,-4). Therefore, this ordered pair is not a solution to the second equation 2x+y = 4

A solution to the system must make BOTH equations true simultaneously, not just one.

Answer 2

Answer:

Answer:

Step-by-step explanation:

2x + y = 4

If you substitute x = 1, and y = -4, then

2(1) - 4 = 2 - 4 = -2 not 4

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If the Side Square Is 7m. Find Its Area

Answers

Answer:

28m you are welcome thank you

If one side of the square is 7 then all the other sides should be 7 as well as the sides of a square are equal.

Therefore you would do 7x7=49cm2

Which equation represents the graph of the linear function?A.

y = −4x + 4

B.

y = −4x − 4

C.

y = 4x + 4
D.

y = 4x − 4 <---- ?

Answers

The answer is C. y = 4x + 4. You can find the slope by rise over run where the rise is 4 and the run is 1. 4/1 is 4. You also know to add 4 as 4 is the value of y when x=0.

Factor each expression 27+12 30+12x 42x+49

Answers

27+12
Find the biggest common factor.
3(9+4)

30+12x
Find the biggest common factor.
6(5+2x)

42x+49
Find the biggest common factor.
7(6x+7)

How to you write 2 5/6 as a fraction

Answers

25\100 that means 25 out of a 100 hope this helps

A box can hold 9 cookies. A baker has 878 cookies that she wants to put equally into boxes. How many cookies will be in the last box that isn't full?

Answers

6 cookies will be in the last box that would not be full.
divide 679 by 9+97 withe the remainder
97 times 9=873
879-973 is 6

97 boxes will be full and the box that isn't full will have 5 cookies in it

a box or laundry detergent is on sale for $6.50. If this price represents a 40% discount from the original price, what is the original price to the nearest cent?

Answers

The discount is $2.60. $6.50 + $2.60 = $9.10. $9.10 is the original price.

to solve the question, you divide 6.50 by 60%, or 0.60

the answer to that is $10.83

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