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Ymorist [56]
4 years ago
9

PLz i need help will mark brianly

Mathematics
2 answers:
Zigmanuir [339]4 years ago
5 0
Let's use substitution.
<span>y=−2x+3
y=13x−4
</span>
1. Substitute
<span><span>−2x+3=13x−4</span><span>
2. Solve for x
x = 7/15

3. Substitute x into the equation
y = 31/15

The answer is 
7/15, 31/15 </span></span>
gulaghasi [49]4 years ago
3 0
Since both the expressions in x are equal to y then they are equal to each other, so

-2x + 3 = 13x - 4

-15x + 3 = -4

-15x = -7 

x = 7/15

and y = -2(7/15) + 3 =  31/15  = 2 1/15
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Help me show the work please<br>​
m_a_m_a [10]

Answer:

We are working with 2 vertical angles which are ALWAYS equal.

Therefore, 2 + 3x = 62

3x = 60

Therefore, x = 20

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
A travelling salesman sells milkshake mixing machines and on average sells 8.9 machines per month. He needs to sell at least 3 m
Goshia [24]

Answer:

0.67% probability he will have to shut down after this month

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

In which

x is the number of sucesses

e = 2.71828 is the Euler number

\mu is the mean in the given time interval.

On average sells 8.9 machines per month.

So \mu = 8.9

Using the Poisson distribution, what is the probability he will have to shut down after this month

If he sells less than 3 machines.

P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2)

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

P(X = 0) = \frac{e^{-8.9}*8.9^{0}}{(0)!} = 0.0001

P(X = 1) = \frac{e^{-8.9}*8.9^{1}}{(1)!} = 0.0012

P(X = 2) = \frac{e^{-8.9}*8.9^{2}}{(2)!} = 0.0054

P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2) = 0.0001 + 0.0012 + 0.0054 = 0.0067

0.67% probability he will have to shut down after this month

5 0
3 years ago
Perimeter is 100 meters length is 12 m more than width what is length and width
MrRa [10]

Perimeter of rectangle = 2(l+w)

let. width = x, length = x+12

So, 100 = 2(x+x+12)

100=2(2x+12)

100=4x+24

4x=76

x=19, y=19+12 = 31

So, Length = 31 m & Width = 19 m

4 0
4 years ago
Please answer the both of them I will reward brainlest
frozen [14]

Part A) you sub .3 B is answer

Part b) 23.4-.3=23.1 and 23.1-.3 is 22.8 B is answer

Your welcome!

6 0
3 years ago
John's paycheck this week was $9.23 less than his paycheck last week. His paycheck this week was $154.01 . How much was John's p
jeka94
Johns paycheck last week was $163.24
3 0
3 years ago
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