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2 years ago

2.2x-10=0.2x +14 and -4x+5=x-5

Mathematics

1 answer:

Tcecarenko [31]2 years ago

5 0

Answer:x=12 and x=2

Step-by-step explanation:

2.2x-10=0.2x+14

2.2x-10-(0.2x+14)=0

2.2x-0.2x-14-10=0

2x-24=0

2x=24

x=24/2

x=12

-4x+5=x-5

-4x+5-(x-5)=0

-4x-x+5+5=0

-5x+10=0

-5x=-10

x=-10/-5

x=2

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4 0

2 years ago

55<35+10x<br><br> What is x less than

Brums [2.3K]

Hi!

55<35+10x

Move 35 to the left, using the opposite operation:

55-35<10x

20<10x

Divide both sides by 10:

2<x

Since 2 is greater than x, x is less than 2:

x<2 (Answer)

Hope it helps!

Enjoy your day!

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8 0

2 years ago

Refer to the various selling prices of various homes in a community that follow the normal distribution with mu (population mean

blsea [12.9K]

Answer:

0.43715

Step-by-step explanation:

We solve using z score calculator

z = (x-μ)/σ, where

x is the raw score

μ is the population mean = $276,000

σ is the population standard deviation = 32,000

For x = $276,000

z = 276,000 - 276,000/32000

z = 0

Probability value from Z-Table:

P(x = 276000) = 0.5

For x = $325,000

z = 325,000 - 276,000/32000

z = 1.53125

Probability value from Z-Table:

P(x = 325000) = 0.93715

The probability that the next house in the community will sell for between $276,000 and $325,000 is

P(x = 325000) - P(x = 276000)

= 0.93715 - 0.5

= 0.43715

8 0

2 years ago

50 is 40% of what number

DENIUS [597]

50 / 0.40 = 125

To check your answer, 125 * 0.4 = 50

7 0

2 years ago

Read 2 more answers

7) Will you ever get 100% red M&M's in a packet? Explain your answer.

andreev551 [17]

No. A machine dispenses all the colors on a conveyor belt that mixes all the available colors.

8 0

2 years ago