MATHEMATICS MIDDLE SCHOOL

Explain hard to tell whether (2,-1) is a solution of the equation Y= 3X -2 without using the graph

Answers

Answer 1
Answer:

Answer:

Considering the equation given:

y= 3x -2

As a function:

f(x)= 3x -2

$(2, -1)$ states for (x, y), which means, x=2 and y=-1

f(2)= 3(2) -2\nf(2)= 6-2\nf(2)= 4

4\neq -1

Therefore, $(2, -1)$ is not a solution for the equation given and for the function.

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What is the slope of the line through points (0,6) and (5,-4)

3 1/8-1 4/8

Quick help me please

Answers

the answer is
13/8 as a improper fraction and 1 5/8 as a mixed fraction
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If the subtrahend is 9 and the difference is 8 what is the minuend

Answers

The subtrahend is 9 and the difference is 8 and the minuend is 17

Final answer:

In the subtraction operation, the minuend is the number we are subtracting from. Given the subtrahend (9) and the difference (8), we can find the minuend by rearranging the subtraction formula: Difference + Subtrahend = Minuend. This gives us 8 + 9, so the minuend is 17.

Explanation:

In a subtraction operation, the number that is subtracted is called the subtrahend and the number you are subtracting from is called the minuend. The result of the subtraction is called the difference.

In your question, you're told the subtrahend is 9 and the difference is 8. The formula for subtraction is: Minuend - Subtrahend = Difference. So, to find the minuend, you rearrange the formula to: Difference + Subtrahend = Minuend. Plugging the values in, you get: 8 + 9 = 17. So, the minuend is 17.

Learn more about Subtraction here:

brainly.com/question/20438352

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The theoretical probability of rolling a number greater than 2 on a standard number cube is 5/6. True or False

Answers

Answer:

false- its 4/6

Step-by-step explanation:

120 books increased by 55%

Answers

 To find 55% of 120 books, multiply 120 x .55  
Then add that answer to the original 120.

120 + 55% = 186

3 pineapples, 2 cabbages and 6 bananas cost a total of $27.2 pineapples, 3 cabbages and 4 bananas cost a total of $23.
4 pineapples, 1 cabbage and 8 bananas cost a total of $31.
Find the costs of:
-one pineapple -one cabbage -one banana
*Please show your work step by step*

Answers

3p + 2c + 6b = 27
2p + 3c + 4b = 23
4p + 1c + 8b = 31
===============
take any 2 equations and eliminate a variable

3p + 2c + 6b = 27
4p + 1c + 8b = 31....multiply by -2
---------------------
3p + 2c + 6b = 27
-8p - 2c - 16b = - 62 (result of multiplying by -2)
--------------------add
-5p - 10b = - 35

Now take one equation, and the other equation that u have not used already, and eliminate the same variable.

4p + 1c + 8b = 31.....multiply by -3
2p + 3c + 4b = 23
---------------------
-12p - 3c - 24b = - 93 (result of multiplying by -3)
2p + 3c + 4b = 23
----------------------add
-10p - 20b = - 70

now take ur 2 equations that u eliminated the c in, and eliminate another variable

-5p - 10b = -35......multiply by -2
-10p - 20b = -70
---------------------
10p + 20b = 70 (result of multiplying by -2)
-10p - 20b = -70
-------------------add
0 = 0

when u get a result such as  0 = 0....this means there is infinite solutions to this problem

Kara used the formula P=2(l+w) to find the perimeter of the photograph. She tells Jim that the length is 6 cm, and the perimeter is 22 cm. How can Jim find the width of the photo?

Answers

Given\n Perimeter (P) = 22cm \n Length (l) = 6cm \n\n We\ know, \n P=2(l+w)\n 22=2(6+w)\n 2(6+w)=22\n\n 6+w = (22)/(2)\n\n w=11-6 \n\n \boxed {w=5cm }
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