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likoan [24]
3 years ago
10

I GIVEEEEEEEEEEE BRAINLIST

Mathematics
1 answer:
irina [24]3 years ago
8 0

Answer:

Step-by-step explanation:

B

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Is -7/3 equivalent to -7/-3?
masya89 [10]

Answer:

no

Step-by-step explanation:

8 0
3 years ago
What equation would help determine the cost of 4 markers if five markers are $6.55 and remember I am asking for the equation not
harkovskaia [24]

Answer:

4($6.55)/5

Step-by-step explanation:

If five markers cost $6.55

then equate or cross multiply inorder to get the cost of 4 markers.

4($6.55)/5

7 0
2 years ago
The population of a community is known to increase at a rate proportional to the number of people present at time t. The initial
maks197457 [2]

Answer:

The initial population P0 is 7500

Step-by-step explanation:

First of all, we are told that the population is proportional to time. This means that as time goes by, the population will increase. This type of relationship between two variables has the form of a linear equation expressed as:

y = mx + b,

where m is the slope of the curve and b is the intercept of it.

In this case we can state the following equation:

P = mt + P0

Where P is the population at a certain time "t", "m" is the slope of the curve, "t" is the time (this is the independent variable) and P0 is the intercept of the curve and represents the initial population.

Once we state the equation, let's see what we know:

If t = 0, then P = P0

If t = 3, then P = 12000 just as we are told

and if t = 5, then P = 2 P0 because after five years the population has doubled compared to the initial population (P0).

From the definition of the slope of the curve:

(Y2 - Y1)/(X2-X1) = m

and using the data described before we can formulate the slope value:

m = (2P0 - P0)/(5-0)

m = (2P0 - P0)/5

m = P0/5

Then, let's replace the value of m in the following equation:

P = mt + P0

12000 = (P0/5) × 3 + P0 → This is the equation presented when 3 years has gone by and we now have a population of 12000.

12000 = (3/5) P0 + P0

12000 = (8/5) P0

12000×5/8 = P0 = 7500

Then we can calculate the value of the slope m:

m = P0/5

m = 7500/5 = 1500

Now, knowing the value of m and the initial population P0 we are able to calculate the population at any value of "t".

6 0
3 years ago
Geraldo has a coupon for $12 off the total bill at a local restaurant. Geraldo does not want to spend more than $65. The inequal
NISA [10]
Your answer would be D.
Make this the brainliest answer if it helped!
4 0
3 years ago
Read 2 more answers
The weight of 1000 identical samples of a substance is 1 pound. What is the weight of 100 samples?
alex41 [277]
The answer is 0.1 lbs. Or 1/10 lbs.

Hope this helps!
8 0
3 years ago
Read 2 more answers
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