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2 years ago

Is 5 a solution to 2x + 5 = 15? Yes or No How do you know?

Mathematics

2 answers:

dybincka [34]2 years ago

5 0

Answer:

Step-by-step explanation:

tankabanditka [31]2 years ago

3 0

Answer:

Yes

Step-by-step explanation:

yes because when you place 5 in the x spot you arrive a final answer of 15=15

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a phone company offers teo monthly plans plan a cost 25$ plus an additional 0.11 for each minue of calls. plan b has no initial

Mandarinka [93]

Answer:

The equation is 0.11x + 0.25 = 0.15x (I think) and the answer is 6.25 = x

Step-by-step explanation:

0.11x + 0.25 = 0.15x Subtract 0.11x from both sides

-0.11x -0.11x

0.25 = 0.04x Divide both sides by 0.04

6.25 = x

4 0

2 years ago

Help please and im writing this since it needs 20 characters

Marat540 [252]

Answer:

65% !

Step-by-step explanation:

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5 0

2 years ago

The perimeter of a rectangular garage is 28 m it is 5 m wide how long is it

Ronch [10]

Answer:

The garage is 9 m long.

3 0

2 years ago

Mark charges 100.00 for an encoding work. In addition, he charges 5.00 per page of printed output.

o-na [289]

The total amount charged for each work can be expressed by the equation : 100 + 5x

Fixed charged per work = 100.00

Charge per page printed = 5.00

<u>Let the number pages printed be represented as x :</u>

Total amount charged for n pages can be related thus :

Fixed charge per work + (cost per page × number of pages)

100 + 5x

Therefore, the total amount charged can be expressed with the equation 100 + 5x

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7 0

1 year ago

The SAT Reasoning Test (formerly called the Scholastic Aptitude Test) is perhaps the most widely used standardized test for coll

slamgirl [31]

Answer:

The score is $x = 1884$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 1500$

The standard deviation is $\sigma = 300$

From the question we are told that the score follow a normal distribution

i.e $X \~ \ N( 1500 , 300)$

The proportion of score in the top 10% is mathematically

$P(X > x ) = P( \frac{X - \mu}{\sigma } > \frac{x - \mu}{\sigma } ) = 0.10$

Where x is the minimum score required to be in the top 10%

Now the $\frac{X - \mu}{\sigma } = Z (The \ Standardized \ value \ of \ X)$

$P(X > x ) = P( Z > \frac{x - \mu}{\sigma } ) = 0.10$

$P(X > x ) = P( Z > \frac{x - 1500}{300} ) = 0.10$

So the critical value of 0.10 from the normal distribution table is $Z_{0.10} = 1.28$

$\frac{x - 1500}{300} = 1.28$

$x = 1884$

6 0

2 years ago