Mathematics Middle School

For what ordered pair (a,b) are there infinite solutions (x,y) to the system
4x + ay = -8,
2x + y = b.

Answers

Answer 1

Answer:

(2, -4)

Step-by-step explanation:

The second equation should be half of the first equation.

Related Questions

What is the surface area of the right trapezoidal prism? To receive credit, you must show the work used to arrive at a final answer.

Answers

Answer:

42cm

Step-by-step explanation:

42cm and show your work
Love .

The solution to the following equation is x=0
6x+7= 1/2x+7

True
or
False
(The 1/2 is a fraction)

Answers

Answer: True

Explanation:
If X=0 then that would make the problem 6(0)+7=1/2(0)+7. Anything multiplied by 0 is 0 so that would cancel the 6 and the 1/2. That means that you would be left with 7=7

Answer:

True

Step-by-step explanation:

To see if that is the solution, lets solve the equation.

6x + 7 = 1/2x + 7

Subtract 1/2x from each side to bring it to the right

6x - 1/2x + 7 = 7

Subtract 7 from each side to bring it to the left

6x - 1/2x = 7 - 7

Simplify it

5.5x = 0

Divide 5.5 from each side to leave x alone.

x = 0

The answer is true. I hope this helps!

Jamal and Kendra are running in a 26.2-mile marathon. Jamal’s friend is recording his times in the table as shown, while Kendra’s friend uses a scatter plot to show her progress. If both runners continue at the same average pace, who will arrive at the finish line first? How much longer will it take for the other person to finish?

Answers

Is there a table I can see?

Please help!! I need 1-6 answered!! I'll give brainliest!!

Answers

Step-by-step explanation:

constant = y / X = 11 /2k =2 / - 10 = - 1 / 5box C .... : where y / X = 1 6 ÷ 1/ 4 = 64y / X = 3/7 ÷ 3 =I / 7 So, y= 1/7 Xy/ X= 21 /6 = 7 / 2 so, y = 7 / 2 XBox B

Answer:11/2

-1/5

64

1/7x

7/2x

B

Step-by-step explanation:

For lunch with her friend, Kristionna is purchasing several side items that cost a total of $18, plus 2 sandwiches. The total cost of the meal is $32 and is represented by the equation 2x + 18 = 32. How much does each sandwich cost?
A) $14
B) $22
C) $7
D) $28

Answers

Answer:

C

Step-by-step explanation:

thee equation they give us is 2x + 18 = 32. Our goal is to isolate x.

First, subtract 18 from both sides to eliminate it.

2x + 18 = 32 ---> 2x + 18 - 18 = 32 - 18 ----> 2x = 14

Next, separate the 2 from the x by dividing it from both sides:

2x = 14 ----> 2x/2 = 14/2 ----> x = 7

By solving this equation, we find that x, or one sandwich, costs $7.

Its C did my math in a paper........:)

Which of the following expressions has a value that is less than –2?

A. 0.25−2.50
B. −4.25−(−2.75)
C. −3.25+1.75
D. −4.50−(−5.25)

Answers

Answer:  A  

Step-by-step explanation: 0.25−2.50=-2.25

4 x 6 - 4 x 25 = ?
Show your work lol

Answers

BIDMAS, my good friend, BIDMAS
4 x 6 = 24
4 x 25 = 100
24 - 100 = -76
have a merry christmas :)
4 x 6 = 24
4 x 25 = 100
100 - 24 = 76

Sonny plotted the point (1,6) and used the slope -2 to find another point on the line. Which point could be the one that Sonny found?

(3, 8)
(3, 8)

(-1, 4)
(-1, 4)

(2, 4)
(2, 4)

Answers

Answer:

2,4

Step-by-step explanation:

I could be wrong but the equation would be 6-2 and 1+1

2,4 is the answer bro ........

A fish tank contains 8 neon tetras and 12 guppies. What is the ratio of neon tetras to guppies?
A.1:5
B.2:3
C.3:2
D.2:5

Answers

B: 2;3

Step-by-step explanation:
GCF(greatest common factor) of 8 and 12 = 4
8/4=2 and 12/4=3
The answer is b .
U simplify.
2 into 8 goes 4 times
2 into 4 goes 2 times
2 into 12 goes 6 times
2 into 6 goes 3 times

So the answer is 2:3

A sand wedge normally costs $65.00. It is on sale for 20% off the regular price. What is the discount of the sand wedge? A) $15.00 B)$16.25 C) $46.00 D) $52.00

Please..help​

Answers

Answer:

D

Step-by-step explanation:

20% of 65 is 13

65-13=52

I think it’s D 20% of 65 is 13 so if u do the rest it should be D

Charlene has 2 flash drives of the same size that she uses to store pictures and videos. Each drive is holding the same number of GB of data, d. She wants to move everything to a memory card that can hold up to 8 GB

A) Charlene is going to delete 1 GB of data from each flash drive. How can the total amount of data left on the two flash drives be represented as an expression?

B) How can the expression you wrote be used to write an inequality that shows the maximum amount of data each flash drive can have on it in order to have all the data transfer to the 8 GB memory card?

Answers

867-5309

If you are a gunter dont respond to this

How much of a kilometer is a 100 m sprint?

Answers

1/10
As 1km is 1000 meters, so 100/1000 = 1/10

Answer:

0.1

Step-by-step explanation:

The metric sysetem

Which ordered pair is located on the x-axis?

(0, -5)
(0, -5)

(1, -5)

Answers

Answer:

-5,0

Step-by-step explanation:

Which graph represents the solution of the inequality 4−x≥10 ? K SO I KINDA DREW THE NUMBER LINE BUT WHERE YOU SEE THE 1ST ARROW FROM THE RIGHT,THAT'S WHERE IT STARTS! PLZ HELP ME ALSO ALL THE NUMBERS ARE NEGATIVE:)

--← ← ← ← ← ←------------------------------------------- A. starts at 6
10 9 8 7 6 5 4 3 2 1 0

-----------------→ →→→→→→→→→→→- B. starts at 6
10 9 8 7 6 5 4 3 2 1 -0

---←----←---←-------------------------- C. starts at 7
10 9 8 7 6 5 4 3 2 1 -0

--------------→ →→→→→→→→→→→→→-------------------------- C. starts at 7
10 9 8 7 6 5 4 3 2 1 -0

Answers

if i’m not wrong the answer should be c

I need help with this question.
Pls help.

Answers

Answer: its model, graph, and scale

Step-by-step explanation:

Answer:

Metric units of measurement differ by powers of 10 - 10, 100, 1,000, and so on. Thus, converting from one metric unit to another is always accomplished by multiplying or dividing your initial measurement by the appropriate power of ten.

Step-by-step explanation:

Each order of nachos costs $3.75 at the concession stand and each drink costs $2.25. Which statement is true if Sarah bought three orders of nachos?

A
The product of 3(–2.25) means Sarah has $6.75 less when she bought 3 orders of nachos.

B
The product of 3(2.25) means Sarah has $6.75 more when she bought 3 orders of nachos.

C
The product of 3(–3.75) means Sarah has $11.25 less when she bought 3 orders of nachos.

D
The product of 3(3.75) means Sarah has $11.25 more when she bought 3 orders of nachos.

Answers

Answer:

C i think not so sure bro gl tho

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

i can do the illustrations myself

Answers

integers are a whole number that isn’t a fraction ,examples: 0,1,2,3 non examples: 3.14, 1 1/2(this is a fraction)

1. Find the value of each expression. Show your work.
(a) 1.2^2
(b) 2^3 + 17-3x4
(c) 9^2 divied by 3^3

Answers

Answer:

a) 1.44

b) 13

c) 3

Answer:

a) 1.44

b) 13

c) 3

Step-by-step explanation:

a) 1.2 • 1.2 = 1.44

b) (2 • 2 • 2) + 17 - (3 • 4)

   (8) + 17 - 12

   8 + 5 = 13

c) (9 • 9) ÷ (3 • 3 • 3)

   81 ÷ 27 = 3

Hope this helps!

(Complete the steps in dividing mixed numbers.)
Divide Mixed Numbers
Is one of the numbers a whole number?
No?
Yes?
Write the whole number as a (blank).
Write the mixed number(s) as ( blank)
fractions.
Write the ( blank )
of the divisor.
Multiply as with (blank). Simplify.

Answers

Answer:

WHAT THE WHAT

Step-by-step explanation:

Answer:

yes, wholenumber, whole number, whole number, divisor

Step-by-step explanation:

tt

use Sigma notation to represent the sum of the first seven terms of the following sequence -4, negative 6, negative 8

Answers

Answer:

Sigma means summation and here the common difference is of -2 you so write

Step-by-step explanation:

€ from i equals -4 to - 16 into sigma r

Can someone help me with this

Answers

question one:

row 1:

blank 1) 14 blank2) 7 blank3) 10.5

row 2:

blank1) 2664 blank2) 22.2 blank3) 333

Answer:

question one:

row 1:

blank 1) 14 blank2) 7 blank3) 10.5

row 2:

blank1) 2664 blank2) 22.2 blank3) 333

Step-by-step explanation:

please help. I really need it.

Answers

It’s b and d because when simplified they’re both 25/1

Find an expressiom for the shaded region. Simplify.

Answers

Answer:

x is 2 x is 1 2x-2=0 x-2 =1

Yes that is the answer

Please help me out with this

Answers

Answer:

I need help on the same question---_---

The answer should be 49

26 + 23 = 49

Look at this inequality: 12−4x ≤ 20

Which of these shows the solution to this inequality?

Question options:

Answers

Answer: The last line is the answer

12 - 4x < 20

20 - 12 = 8

-4x = 8

-4/4 = 8/-4

x = -2

New inequality: x > -2

Step-by-step explanation:

The correct option is d. The solution to the linear  inequality 12 - 4x ≤ 20 is x ≥ -2 by solving the inequality.

To solve this inequality,  to isolate the variable x.

Step 1

subtract 12 from both sides of the inequality:

        [tex]12 - 12 - 4x \leq 20 - 12,[/tex]

which simplifies to

         [tex]-4x \leq 8.[/tex]

Step 2 :

Divide both sides of the inequality by -4. However, when  divide by a negative number, the direction of the inequality sign must be flipped. So   x ≥ -2, indicating that x is greater than or equal to -2.

Therefore, the solution to the inequality is x ≥ -2. The correct option is d.

Learn more about solving inequalities here:

https://brainly.com/question/21857626

#SPJ6

Money in a particular savings account increases by about 6% after a year. How much money will be in the account after one year if the initial amount is $100?

Answers

Answer:

hjhg

Step-by-step explanation:

Answer:

106

Step-by-step explanation:

6% • 100

0.06 • 100 = 6

6 + 100

106

1) just match them, IDK if I am right can you plz check thx, if I am wrong can you plz tell me the right answer also, tysm!!!!!!!!

Answers

Answer: I think your correct but I’m not sure

Step-by-step explanation:

A bunch of bananas cost $4, a pineapple cost $2 more than a bunch of banana, and 4 apples cost one-half of a pineapple.
1. Write an equation that shows the cost of a pineapple in terms of bananas. Use this equation to find the cost of a pineapple.
2. Write an equation that shows the cost of 4 apples in terms of a pineapple. Use this equation to find the cost of 4 apples.
3. Write an equation that shows how much more a bunch of bananas cost compared to4 apples where x is the unknown value. Then, solve the equation.

Answers

X=1
I did this yesterday

What is the mass of a triangle?


9/5 grams

7/5 grams

3 grams

11 grams

Answers

3 grams i believe hope u get it right


if the measures of
m

Answers

Answer:

? Did you finish asking it...............?

Step-by-step explanation:

I don’t understand explain it better and I can help
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