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kodGreya [7K]
3 years ago
7

10 - 7w - 13 - 7w + 15

Mathematics
1 answer:
Debora [2.8K]3 years ago
4 0

Answer:

-14w+12

Step-by-step explanation:

10 - 7w - 13 - 7w + 15

Combine like terms

- 7w  - 7w + 10-13+15

-14w+12

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After a 15% increase, a town has 115 people. What was the population before the increase?
Arte-miy333 [17]

Answer:

100 people

Step-by-step explanation:

<em>Population</em><em> </em><em>Of</em><em> </em><em>People</em><em>=</em><em>1</em><em>1</em><em>5</em><em>Percentage</em><em>ncrease</em><em>=</em><em>1</em><em>5</em><em>%</em>

<em>The</em><em> </em><em>New</em><em> </em><em>Population </em><em>corresponds </em><em>to</em><em> </em><em>1</em><em>1</em><em>5</em><em>%</em>

<em>(</em><em>That</em><em> </em><em>is</em><em> </em><em>1</em><em>0</em><em>0</em><em>+</em><em>1</em><em>5</em><em>)</em>

<em>We</em><em> </em><em>want</em><em> </em><em>to </em><em>find</em><em> </em><em>the</em><em> </em><em>popula</em><em>tion</em><em> </em><em>that</em><em> </em><em>corresponds</em><em> </em><em>to </em><em>100%</em><em> </em><em>that </em><em>is </em><em>the</em><em> </em><em>original</em><em> </em><em>population</em><em>.</em>

<em>Therefore</em><em> </em><em>Original </em><em>Population</em><em>;</em>

<em>\frac{100}{115}\times {115}{}</em>

<em>100 \: people</em>

7 0
3 years ago
determine the average rate of change of the function between the given variables h(x) = x; x=a, x=a+h​
Alecsey [184]

Answer:

the average rate of change is 4.

Step-by-step explanation:

Find the average rate of change of f(x)=x^2 on the interval [1,3].

The average rate of change of f(x) on the interval [a,b] is f(b)−f(a)/b−a.

We have that a=1, b=3, f(x)=x^2.

Thus, f(b)−f(a)/b−a=((3))^2−(((1))^2)/3−(1) = 4.

6 0
4 years ago
Rewrite 18/14 in simplest form
maks197457 [2]
You would divide them both my two to get 9/7
6 0
3 years ago
Read 2 more answers
Miguel and his family are on vacation and notice an advertisement for a taxi service that charges a fee of $12 to pick up a fami
madreJ [45]

The equation that modelled the situation is t=12+0.75m

The total cost of 15-mile trip is $23.25

What are the components of total cost of trip?

The total cost of the trip is made of fixed charge for pickup and the total cost of miles covered on the trip

The total cost of the miles is determined as the cost per mile multiplied by the miles covered

Total cost of miles=0.75*m

The total cost trip=t

t=fixed charged +total cost of miles covered

t=12+0.75m.......(the required equation for total cost)

when m=15, t, total cost is computed as shown below:

t=12+0.75(15)

t=12+11.25

t=$23.35

Find out more about total cost of trip on:brainly.com/question/28372981

#SPJ1

8 0
2 years ago
Solve for m when: 3-2m=-1​
kati45 [8]
M = 2

3 - 2m = -1

subtract 3 from both sides
-2m = -4

divide by -2 on both sides
m = 2

the answer is positive since a negative divided by a negative is positive
5 0
3 years ago
Read 2 more answers
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