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Andrei [34K]
2 years ago
13

Can anyone help? I’m stuck and I’ll give Brainly + 55 pts

Mathematics
1 answer:
vazorg [7]2 years ago
6 0

Step-by-step explanation:

1) P = 47,100 + 2,550t

Given P = 95000

So,

95000 = 47100 + 2550t

Subtract 47100 from both sides,

95000 - 47100 = 2550t

47900 = 2550t

Divide by 2550,

t = 47900/2550 = 18.78 = 18.8 years

2) Given P = 43,100 + 3,150t

Both P must be equal.

47100+2550t = 43100+3150t

Subtract 43100 and 2550t from sides,

47100- 43100 = 3150t - 2550t

4000 = 600t

Divide by 600,

t = 4000/600 = 6.67 = 6.7 years

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Write the equation of the line in slope-intercept form that has: slope: -1 and point: (1, 1)
lara31 [8.8K]

Answer:

f(x) = -1x + 1

Step-by-step explanation:

f(x) = mx + b

the equation above is slope intercept form. in order to make it you need a slope and a y intercept. you were given the slope, so now you need a y intercept. but where would you find that???  look no farther than the point you were given, (1,1). the y intercept is the second number in the parentheses. next you take your slope and your y-intercept and place them in.

f(x) = -1x + 1

hope i could help

3 0
2 years ago
A runner was timed at 4 miles per hour. how many feet per minute did they run?​
kherson [118]

Answer:

352

Step-by-step explanation:

because miles are 5,280 steps so 5,280 multiplied by 4 as in miles is 21,120 so that divided by 60 as in a minute it will be 352

8 0
3 years ago
Read 2 more answers
ANSWER ASAPPP In​ 2000, the population of St. Louis was​ 346,904, and it decreased to​ 319,257 in 2010. If this population decre
mart [117]

Answer:

The​ y-intercept should be 346,904. This is the population for the first (first/last( known year of data. The year 2000 acts as 0 on the graph of the exponential function.

Step-by-step explanation:

I just did it on my homework and it said that my answer is right

8 0
2 years ago
X = – 2y – 1<br> x = – 5y + 5
motikmotik

Answer:

x = -5

y = 2

Step-by-step explanation:

x = – 2y – 1

= -x - 2y - 1

-x - 2y = 1

x = – 5y + 5

= -x - 5y + 5

-x - 5y = -5

-x - 2y = 1

-x - 5y = -5

___________--

3y = 6

y = 6/3

<u>y = 2</u>

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-x - 2(2) = 1

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3 years ago
Find the mean absolute deviation of the set of data 3,8,10,12,15
inn [45]

Answer:

3.28

Step-by-step explanation:

find the mean of all the numbers

3 + 8 + 10 + 12 + 15 = 48

48/5=9.6

so the mean of all the numbers is 9.6

now subtract 9.6 from all the numbers

|3 - 9.6| = 6.6

|8 - 9.6| = 1.6

|10 - 9.6| = .4

|12 - 9.6| = 2.4

|15 - 9.6| = 5.4

Find the mean/average of the new values

6.6 + 1.6 + .4 + 2.4 + 5.4 = 16.4

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6 0
3 years ago
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