All categories

3 years ago

calculate gas mileage of car that drives 283 miles on 12.3 gallons of gas andround to nearest tenth of a mpg

Mathematics

1 answer:

Studentka2010 [4]3 years ago

5 0

283 divided by 12.3 = 23.008 and rounded it will just be 23.

You might be interested in

Put fractions in order from greatest to least <br> 5/6 2/4 1/3 7/12

Drupady [299]

Answer: 1/3 2/4 7/12 5/6

Step-by-step explanation:

3 0

3 years ago

HELP ME!!!!! I really need the answer to this!!!!!!!

larisa86 [58]

Answer:

12x^8y^8

Step-by-step explanation:

taking numbers in one side and multiplying and taking the variables in other sides and adding the power

5 0

3 years ago

Read 2 more answers

In a lab, a scientist is growing bacteria for a study. The scientist begins with a bacteria

Diano4ka-milaya [45]

Answer:

The answer is below

Step-by-step explanation:

The growth of the bacteria is in the form of an exponential growth. It is given by the formula:

$P(t)=ae^{rt}\\\\where\ t\ is\ the\ number\ of \ hours, P(t)\ is\ the \ population\ at\ t\ hours\\\and\ a=population\ at\ start$

At 2 hours, the population is 62 cells, hence:

$P(2)=ae^{2r}\\\\62=ae^{2r}\ \ .\ \ .\ \ .\ (1)$

After another 2 hours (4 hours), the population is 1 million:

$P(4)=ae^{4r}\\\\1000000=ae^{4r}\ \ .\ \ .\ \ .\ (2)\\\\Divide \ equation\ 2\ by\ equation\ 1:\\\\\frac{1000000}{62}=\frac{ae^{4r}}{ae^{2r}} \\\\16129=e^{2r}\\\\ln(e^{2r})=ln(16129)\\\\2r=9.688\\\\r=4.844$

Put r = 4.844 in equation 1

$62=ae^{2*4.844}\\\\62=16129a\\\\a=0.003844$

$P(t)=0.003844e^{4.844t}\\\\at \ start,t=0\\\\P(0)=0.003844$

4 0

3 years ago

ILL BRAINLIEST YOU PLEASE HELP ME

Nookie1986 [14]

Answer:

Step-by-step explanation:

7pi2

3 0

3 years ago

if i am 57 years old and i have known someone for 6 and a half years what percentage of my life have i known that person

Mekhanik [1.2K]

Answer: 11.4%

Step-by-step explanation:

100% of your life is 57 years

?% will be 6.5 years?

this is a simple ratio problem:

57 --> 100%

6.5 ---> (6.5 x 100)/57 ≅ 11.4%

You have known the person for about 11.4% of your life.

4 0

3 years ago