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2 years ago

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Here is another riddle: The sum of two numbers is less than 2. If we subtract the second number from the first, the difference i

s greater than 1. What are the two numbers? The riddle can be represented by a system of inequalities. Write an inequality for each statement.

1 answer:

aivan3 [116]2 years ago

4 0

Answer:

Let x, y be the two numbers under consideration. Then, x+y<2 and x-y>1.

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april bought some sports drinks and slices of pizza for her friend. she bought 3 more sports drinks than slices of pizza. if her

statuscvo [17]

Let the number of sports drinks April bought be represented by = s

Let the pizza slices April bought be represented by = p

As she spent a total of $21.25 so equation becomes:

$s+p=21.25$

$p+3+p=21.25$

$2p=18.25$

$p=9.125$

As she bought 3 more sports drinks than pizza slices so, s = p+3

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2 years ago

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James is 612 centimeters tall how many decimeters is this

beks73 [17]

James is 61.2 decimeters

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2 years ago

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If a random variable X is exponentially distributed with parameter λ=2, then P(X≥1) is equal to

Rasek [7]

Answer:

D. 0.1353

B. 0.0473

Step-by-step explanation:

For an exponentially distributed random variable, the cumulative distribution function is:

$P(x\leq a) = 1 - e^{-\lambda a}\\P(x\geq a) = e^{-\lambda a}$

with parameter λ=2, then P(X≥1) is equal to:

$P(x\geq 1) = e^{-2*1}=0.1353$

D. 0.1353

with parameter λ=1.5, then P(2≤X≤4) is equal to

$P(2\leq x \leq 4) = P(x \leq 4) - P(x\leq 2)\\P(2\leq x \leq 4) =1 - (e^{-1.5*4}) - (1-(e^{-1.5*2}))\\P(2\leq x \leq 4) = 0.0473$

B. 0.0473

7 0

2 years ago

A= 49 sq. in.<br><br> Find the value of x. If necessary, round to the nearest tenth.

BlackZzzverrR [31]

Answer:

9.90 inches

Step-by-step explanation:

Area of a triangle is equal to base times height divided by 2.

$bh/2$

Base and height is x.

$xx/2=49$

Solve for x.

$x^2=49 \times 2$

$x^2=98$

$x=\sqrt{98}$

$x=9.899495$

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2 years ago

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Kimani works for the city and is reimbursed for his mileage when traveling for work. In order to submit his reimbursement form,

IceJOKER [234]

The mileage from the Supermarket to the Library may be calculated using Pythagorean Theorem.

The coordinates of the Library are (7,10) and the coordinates of the Supermarket are (3,7).

So, the distance requested is √ [ (7-3)^2 + (10 - 7)^2 = √[ 4^2 + 3^2 = √ [16 + 9] =

= √25 = 5

So, he runs 5 miles.

And the reimbursement will be $0.50 / mile * 5 mile = $ 2.50.

Answer: option B) $ 2.50

5 0

2 years ago