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mel-nik [20]
4 years ago
8

Systems of Equations via Elimination

Mathematics
1 answer:
Natalka [10]4 years ago
5 0

Answer:

Step-by-step explanation:

The shop sold 70 ice cream cones. It means that x + y = 70Small cones cost 3.95 and large cones cost 5.75. The total sales made from the selling 70 ice creams is $370.10. It means that 3.95x + 5.75y = 370.1 - - - - - - - - - -1Substituting x = 70 - y into equation 1, it becomes3.95(70 - y) + 5.75y = 370.1276.5 - 3.95y + 5.75y = 370.1- 3.95y + 5.75y = 370.1 - 276.51.8y = 93.6y = 93.6/1.8y = 52x = 70 - 52x = 18. Ww

Read more on Brainly.com - brainly.com/question/14570469#readmore

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For each graph, calculate the slope of the line.<br> Whew is the slope between 2,6 and 8,4
Tom [10]

Answer:

-1/3

Step-by-step explanation:

First, slope is change in y over change in x, or rise over run. Plugging these points in, (y2-y1)/(x2-x1)=(6-4)/(2-8), or 2/-6, simplifying, the slope= -1/3.

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3 years ago
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There is a bag filled with 4 blue, 3 red and 5 green marbles. A marble is taken at random from the bag, the colour is noted and
Rama09 [41]

Answer:

Step-by-step explanation:

4+3+5= 12 marbles

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The warranty for a particular system on a new car is 2 years. During which there is no limit to the number of warranty claims pe
const2013 [10]

Answer: by using Poisson distribution

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P(x=2)= 0.143

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Step-by-step explanation:

<u>step:-1</u>

A random variable X is said to follow a Poisson distribution if it assumes only non-negative values and its probability distribution is given by

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

here w>0 is called the parameter of the distribution

<u>Step 2</u>:- Given mean value of Poisson distribution = 0.8

The warranty for a particular system a new car is 2 years

P(X=x)=P(X=2)=\frac{e^{-0.8}{0.8^{2} }  }{2!}

P(x=2)= 0.143

<u>Step 3</u>:-

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There is no limit to the number of warranty claims per car

P(X=x)=P(X=0)=\frac{e^{-0.8}{0.8^{0} }  }{0!}

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7 0
3 years ago
3. &lt;JKL and &lt;RST are complementary. m&lt;JKL = 36° and m&lt;RST = (x + 15)°. Find the value of x and the measure of &lt;RS
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Step-by-step explanation:

=51

7 0
3 years ago
Please help. I will give you lots of points
Otrada [13]
√3=1.7
2√3=3.4
√5=2.2
The order:
√3,2√3,√5
4 0
3 years ago
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