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3 years ago

Students were surveyed about their favorite kind of frozen yogurt

Mathematics

1 answer:

Oxana [17]3 years ago

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What is an equation of the line that passes through the points (4, 4) and (8, 1)?

geniusboy [140]

Answer: y = -3/4x + 7

Step-by-step explanation:

first find slope:

y2-y1 / x2 - x1

1-4 / 8-4

-3/4

now just plug the slope (m) into the equation of a line using one of the points to find the y intercept

ill use (8,1)

1 = (-3/4)(8) + b

now solve :)

1 = -6 + b

7 = b

so now plug in the slope and the y intercept into the slope intercept form to find the equation of the line

y = -3/4x + 7

3 0

3 years ago

A salesman sold $3000 worth of good during a month and received $150 in commission. What is percentage of sales is paid as commi

AleksandrR [38]

Answer:

Step-by-step explanation:

150/3000

0.05

commission btw is

5 0

3 years ago

Read 2 more answers

Jeremiah is making monthly payments of $66.00 to pay off a loan that he took out to buy a drum set, But he wants to pay off his

dsp73

I don't believe all of the information is given but I would say off the information that is provided it would be $70.00 per month

7 0

3 years ago

Read 2 more answers

The population of a colony of mosquitoes obeys the law of uninhibited growth. If there are 1000 mosquitoes initially and there a

Anettt [7]

Answer:

1) The size of the colony after 4 days is 6553 mosquitoes

2) After $t = 4.9\ days$

Step-by-step explanation:

To answer this question you must use the growth formula

$N = N_0e ^ {kt}$

Where

$N_0$ is the initial population of mosquitoes = 1000

t is the time in days

k is the growth rate

N is the population according to the number of days

We know that when t = 1 and $N_0=1000$ then N = 1600

Then we use these values to find k.

$1600 = 1000e ^{k(1)}\\\\\frac{1600}{1000} = e ^ k\\\\ln(\frac{1600}{1000}) = k\\\\k = 0.47$

Now that we know k we can find the size of the colony after 4 days.

$N = 1000e ^ {0.47(4)}\\\\N = 6553\ mosquitoes$

To know how long it should take for the population to reach 10,000 mosquitoes we must do N = 10000 and solve for t.

$10000 = 1000e ^ {0.47t}\\\\10 = e ^ {0.47t}\\\\ln(10) = 0.47t\\\\t = \frac{ln(10)}{0.47}\\\\t = 4.9\ days$

6 0

3 years ago

Which marine fish stock assessment method involves trawling by scientists to collect data, which are then used to infer changes

Snowcat [4.5K]

Answer:

sampling

Step-by-step explanation:

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3 years ago