MATHEMATICS MIDDLE SCHOOL

Please answer this as soon as possible

Answers

Answer 1

Answer:

x = -8

Step-by-step explanation:

Answer 2

Answer:

Answer:x=-8

Step-by-step explanation:

12(x/4+2/3)=12(x/6)

3x+8=2x

3x-2x=-8

x=-8

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Expression that can be used to multiply 6 x 198 mentally

Answers

Break it up. 6 x 100, 6 x 90, 6 x 8. 600+540+48 = 1188.

break it down
54
198
* 6
———
1188
(1*1000)*(1*100)*(8*10)*(8*1)=1188

A gallon of water weighs about 8.3 pounds what is the weight of 614.2 gallons of water?

Answers

To solve this, you would have to divide the amount of number the water weighs per pound (8.3) to the amount of gallons (614.2), so the equation/answer would be:
614.2 / 8.3 = 74

the answer is 74 that part of the problem

Solve the system of equations below by graphing both equations with a pencil and paper. What is the solution?

Answers

Answer: B. (2,1)

Step-by-step explanation:

The given system of equation :

$y=2x-3...........................(1)\n\ny=-2x+5.............................(2)$

Adding equation (1) and (2), we get

$2y=-3+5\n\n\Rightarrow\ 2y=2\n\n\Rightarrow\ y=1$

Substitute the value of y in the first equation , we get

$1=2x-3\n\n\Rightarrow\ 2x=1+3\n\n\Rightarrow\ 2x=4\n\n\Rightarrow\ x=2$

Therefore, the solution to the given system of equations = (2,1)

Answer:

B (2,1)

Step-by-step explanation:

Victor went to the barber to get a haircut. The haircut cost $9. Victor gave the barber a 25% tip. How much did Victor spend at the barber shop altogether?

Answers

Answer: He spent $ 11.25 at the barber shop.

Step-by-step explanation:

Here, The cost of hair cutting = $ 9,

While, the tip he gave = 25 % of the cost of hair cutting

= 25 % of 9

= 0.25 × 9

= $ 2.25

Since, Victors's total spending = The cost of hair cutting + Tip

= 9 + 2.25

= $ 11.25

Hence, He spent $ 11.25 at the barber shop.

He gave the barber an extra $2.25 so in all he paid $11.25

What is (3 2/11) as a decimal?

Answers

3 2/11 as a decimal is 3.18

Rationalize the denominator of square root of negative 49 over open parentheses 7 minus 2 i close parentheses minus open parentheses 4 plus 9 i.

Answers

sqrt(-49) / [ (7-2i) - (4+9i) ]

= 7i / (3 - 11i)

= 7i (3+11i) / [ (3 - 11i) (3 + 11i) ]

= (21 i - 77) / (9 + 121) = choice (d), (-77 + 21i) / 130

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