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Vesna [10]
2 years ago
10

Solve p=10a+3b for a

Mathematics
2 answers:
pav-90 [236]2 years ago
8 0
<span>p=10a+3b
10a = 3b - p
a = (3b-p) / 10

hope it helps</span>
julia-pushkina [17]2 years ago
6 0
Move b to the left.
-3b+p=10a
Divide all terms by 10
-3/10b + 1/10p= a

Rearrange
a= -3/10b + 1/10p
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I need help with the incorrect ones please
Morgarella [4.7K]

Answer:

73.6

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2.3

1.342

.4129

*note* I had trouble reading the standard deviation of the second part, so if it's not 3 then leave a comment and i will fix it*

Step-by-step explanation:

1.)

the mean would be something like 460*.16= 73.6

The variance should be 460*.16(1-.16)= 61.824 which means the standard deviation is √61.824= 7.863

for p to be less than .15 it would have to be less than .15*460= 69

(69-73.6)/7.863= -.59 which has a probability of .2776

2.)

the mean is 2.3

I am not sure if the standard deviation is 3 or .3 (picture is kind of blurry)

I am thinking that it's three which would mean that the standard deviation would be √(3²*(1/5))= 1.342

(2-2.3)/1.342= -.22 = .4129

5 0
2 years ago
The town of Madison has a population of 25000 The population is increasing by a factor of 1.12 each year.
Fudgin [204]

Answer:

P(t) = 25,000*1.12^t

Step-by-step explanation:

The populational growth is exponential with a factor of 1.12 each year. An exponential function has the following general equation:

y(x) = ab^x

Where 'a' is the initial population (25,000 people), 'b' is the growth factor (1.12 per year), 'x' is the time elapsed, in years, and 'y(x)' is the population after 'x' years.

Therefore, the function P(t) that models the population in Madison t years from now is:

P(t) = 25,000*1.12^t

8 0
3 years ago
Read 2 more answers
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The answer I got was 4 cans. I really hope my math was right!
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Answer:

(1, -1)  

Step-by-step explanation:

When you reflect a point (x, y) across the x-axis, its coordinates

become (x, -y).

Thus, when you reflect point S to Point J, the coordinates change from (1, 1) to (1, -1).


7 0
3 years ago
June is driving from brookline, massachusetts to brooklyn, new york. The cities are 200 miles apart. Pretend june lives in a wor
Pani-rosa [81]

The formula that describes this function is c = 50t

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more variables and numbers.

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The formula that describes this function is c = 50t

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6 0
2 years ago
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