MATHEMATICS MIDDLE SCHOOL

What is the x in 120(2x-2)=240

Answers

Answer 1
Answer:

Answer:

X=2

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

120(2x−2)=240

(120)(2x)+(120)(−2)=240(Distribute)

240x+−240=240

240x−240=240

Step 2: Add 240 to both sides.

240x−240+240=240+240

240x=480

Step 3: Divide both sides by 240.

240x/240=480/240

x=2

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15.25 rounded to the nearest tenth?
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Lorraine works at a gift shop. She buys 500 accessories at $1.25 each. She resells them all to make a profit of $375.00.What percent does she mark up the price of each accessory?

Answers

Profit percent made by Lorraine is 60%

Explanation:

Given:

Number of accessories = 500

Cost of each gift = $1.25

Profit = $375

Profit% = ?

Total price of the gift = 500 X $1.25

Cost price = $625

Profit = SP - CP

$375 = SP - $625

SP = $1000

Profit % = ((SP-CP)/(CP) ) X 100

P = ((1000 - 625)/(625)) X 100 \n\nP = 60%

Therefore, profit percent made by Lorraine is 60%

2 and 1/6 times 3 and 2/5 equals...A.7 and 11/30
B.6 and 1/10
C.5 and 23/30
D.6 and 1/15

Please Help Me! :)

Answers

If you would like to know the value of 2 1/6 times 3 2/5, you can calculate this using the following steps:

2 1/6 * 3 2/5 = 13/6 * 17/5 = 221/30 = 7 11/30

The correct result would be A. 7 and 11/30.

What is the volume of a cone with a diameter of 30 feet and a height of 60 feet? Use 3.14 for π. Enter your answer in the box.

Answers

Answer:

14130

Step-by-step explanation:

3.14 × 15² × 60/3

= 14130

Find the probability of spinning each of the following P(not 7)

Answers

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Solve6. Jerry made a down payment of $3850 on a carthat cost $11,000. What percent of the price ofthe car was his down payment?

Answers

   
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X(x+9)=0
x=?
What does x have to be for the answer to be 0?

Answers

when we solve the equation it will become
x² + 9x= 0
now here a = 1 , b = 9 and c = 0 
by using quaderatic formula
x = -b +,-√b ²- 4ac / 2a     ( 2a is divided by all terms )
by putting values
x = - 9 +,- √81 / 2(1)               ( √81 = 9)
x = -9 + 9 / 2    and x = -9 -9 /2
x = 0                and x = -18 /2 = -9  
now there are two values for x one is- 9 and other is 0 
so we put -9 as the value of x then answer will be zero..
x(x+9)=0\nx=0 \vee x=-9
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