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3 years ago

Please help, I don’t understand

Mathematics

2 answers:

IrinaK [193]3 years ago

5 0

Using basic distance = speed x time, and rearranging it for speed as the subject...

pogonyaev3 years ago

3 0

Answer:

For your question the answer will be 7.6 meters a second. So the third answer

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PLS HELP!! ALGEBRA!!

sineoko [7]

Horizontal distance = 48'

difference in elevation = 18"-6" = 12" = 1'

Slope of the sewer line = rise/run = 1/48 = 0.0208 = 2.08%

6 0

3 years ago

number of bacteria in a certain population Increases according to a continuous exponential growth model with How many hours does

vladimir1956 [14]

Answer:

It takes 1.77 hours for the population to double.

Step-by-step explanation:

Equation for population growth:

The equation for population growth, after t hours, with a growth rate parameter of r, as a decimal, is given by:

$P(t) = P(0)(1+r)^t$

Growth rato parameter of 48% per hour

This means that $r = 0.48$ . So

$P(t) = P(0)(1+r)^t$

$P(t) = P(0)(1+0.48)^t$

$P(t) = P(0)(1.48)^t$

How many hours does it take the size of the sample to double?

This is t for which P(t) = 2P(0). So

$P(t) = P(0)(1.48)^t$

$2P(0) = P(0)(1.48)^t$

$(1.48)^t = 2$

$\log{(1.48)^t} = \log{2}$

$t\log{1.48} = \log{2}$

$t = \frac{\log{2}}{\log{1.48}}$

$t = 1.77$

It takes 1.77 hours for the population to double.

3 0

3 years ago

Amie has 9 cats. each cat eats 1/3 can of food each day. how many cans of food are used each day?

Basile [38]

Answer:

3 Cans.

Step-by-step explanation:

Each cat can take one portion. so

9 ÷ 3 = 3

3 cans a day

3 0

3 years ago

I traveled 117 miles in 2.25 hours. What was my average speed? How would I solve this ?

LenKa [72]

117 miles in 2.25 hours

Divide both numbers by 2.25

52 miles per hour

3 0

3 years ago

Read 2 more answers

Given h (x) = -2x - 4, solve for x when h (x) =6.

anygoal [31]

Answer:

(x = -20) if what your saying is 6 = -2x - 4 and (x = -16) if what your saying is x = -2 x 6 - 4

Step-by-step explanation:

6 0

2 years ago