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pychu [463]
2 years ago
11

In 2017, the price of gas in a certain state changed from $2.24 to $2.56. Calculate the percent of change increase in the price

of gas in 2017.
Group of answer choices

14.3%

32%

12.5%

80%
Mathematics
2 answers:
Eva8 [605]2 years ago
8 0

Answer:

12.5%

Step-by-step explanation:

2.56-2.24 =0.32

By using the rule of three we can find the answer.

we have that 2.56 = 100% so we have to find what percentage 0.32 represents

(0.32*100)/2.56 = 12.5

Oduvanchick [21]2 years ago
4 0

Answer:

12.5%

Step-by-step explanation:

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While on vacation in Europe you notice that a tablet computer is selling for 600 euros in France and for 533 pounds in Britain.
serg [7]

The cost of the tablet computer is less in France. It is $8.

Step-by-step explanation:

Cost in France = 600 euros

75 euros = 1 dollar

600 euros = 600/75 dollars

=$ 8

Cost in Britain = 533 pounds

65 pounds = 1 dollar

533 pounds = 533/65 dollars

= $8.2

The cost of the tablet computer is less in France. It is $8.

3 0
3 years ago
Let $r$ and $s$ be the roots of $3x^2 + 4x + 12 = 0.$ Find $r^2 + s^2.$ Pls help.
nirvana33 [79]

Answer:

-56/9

Step-by-step explanation:

By Vieta's formulas,

$r + s = -\frac{4}{3}$ and $rs = \frac{12}{3} = 4.$ Squaring the equation $r + s = -\frac{4}{3},$ we get

$r^2 + 2rs + s^2 = \frac{16}{9}.$ Therefore,

$r^2 + s^2 = \frac{16}{9} - 2rs = \frac{16}{9} - 2 \cdot 4 = -\frac{56}{9}}$

5 0
3 years ago
9 centimeters y'all it grows .7 centimeters each day what is the function
emmasim [6.3K]

9 + .7d

Should be your answer!

8 0
2 years ago
The print on the package of -watt General Electric soft-white light-bulbs says that these bulbs have an average life of hours. A
Naddika [18.5K]

Answer:

Hi your question is incomplete attached below is the complete question

answer : p ( X < 725 )  = 0.0116

Step-by-step explanation:

Given data:

Average life of bulbs (μ  ) = 750 hours

standard deviation (б ) = 55 hours

n ( sample size ) = 25

X = 725  

<u>Probability that the mean life of a random sample of 25 bulbs will be less than725 hours </u>

p ( X < 725 ) = p (( X - μ )/ б √n  <  725 - 750 / 55√25 )

                     = P ( Z > - 2.27 )

Hence P ( X < 725 ) = 0.0116  ( using Z-table )

3 0
2 years ago
Plz I need help asap i only have 10 mins to answer this.PS-dont tell me yo look it up cuz its not there.
Vsevolod [243]

Answer:

A skateboarder travels down 2 meters a second

Step-by-step explanation:

The slope is 4 / 2 = 2

5 star, thank, and brainliest if helpful!

4 0
2 years ago
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