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Dmitry_Shevchenko [17]

3 years ago

5

Hello could i please get some quick help can someone help solve 2x+3=10

1 answer:

ki77a [65]3 years ago

8 0

Answer:

x= 3.5

Step-by-step explanation:

2x + 3 = 10 (-3)

2x = 7 (divide by 2 )

x = 3.5

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A man and a woman agree to meet at a certain location about 12:30 pm. If the man arrives at a time uniformly distributed between

dimaraw [331]

Explanation.

The question is incomplete. However, the complete part of the question simply states that: What is the probability that the man arrives first?

Answer:

Therefore, we can say that the probability that the man will arrive first is half that is 1/2 while the probability that no one will wait more than five times is 1/6

Step-by-step explanation:

We assume the man and the woman arrive at 12:X and 12:Y respectively (1:00 is 12:60). Also, the space of X and Y are [15, 45] and [0, 60] respectively, and fₓ (x) ≡ 1 / (45 − 15) = 1/30, fy (y) ≡ 1 / (60 − 0) = 1 / 60.

So the joint pdf of X and Y is

f(x, y) = 1 / 30 x 1 / 60

= 1 / 1800

where ( x , y ) ∈ [15, 45] × [0, 60].

Consequentially,

P(| X − Y | ≤ 5) = ∫ Iim (45)(15) ∫ lim (x+5)(x-5) f (x,y)dydx

= 1 / 1800 ∫ Iim (45)(15) y | ₓ₋₅ˣ⁺⁵ dx

= 30 x 10 / 1800

300 / 1800

= 1 / 6

Hence,

P( X < Y ) = ∫ Iim (45)(15) ∫ lim (60)(x) f (x,y) dydx

= 1 / 1800 ∫ Iim (45)(15) y | ⁶⁰ₓ dx

= 1 / 1800 ∫ Iim (45)(15) ( 60 - x ) dx

= 60 x − x ²/2 ÷ 1800 ║⁴⁵₁₅

= 1 / 2

8 0

3 years ago

Read 2 more answers

Distributive property for 65 × 7

Mkey [24]

65 ×7=455 is your answer

5 0

3 years ago

Read 2 more answers

Sasha Jar’d 25 L of jam after 5 days. How much jam did Sasha jar if she spent 7 days making jam

tia_tia [17]

Answer:

35 L

Step-by-step explanation:

Unit rate is 25/5 which is 5 and 5 x 7=35

5 0

3 years ago

This math problem is a bit confusing for me please help -108π=6πj

belka [17]

Answer:

j= -18

Step-by-step explanation:

8 0

3 years ago

Jennifer and Kamlee are walking to school. After 20 minutes, Jennifer has walked 4/5 miles. After 25 minutes, Kamlee has walked

Nimfa-mama [501]

Answer:

Jennifer's speed is 2.4 miles/hour

Kamlee's speed is 2 miles/hour

Step-by-step explanation:

To find their speed,

Speed can be determined from the formula below,

$Speed = \frac{Distance}{Time}$

Also, to determine the speed in miles per hour (miles/hour), we will convert the time spent by each of them to hour (NOTE: 60 minutes = 1 hour)

For Jennifer,

Distance = 4/5 miles

Time = 20 mins (Convert to hour)

∴Time = (20/60) hour = 1/3 hour

Hence,

$Speed = \frac{Distance}{Time}$

$Speed = \frac{4/5 miles}{1/3hour}$

$Speed = \frac{4}{5} \times \frac{3}{1}$

$Speed = \frac{12}{5}$

$Speed = 2.4 miles/hour$

Hence, Jennifer's speed is 2.4 miles/hour

For Kamlee,

Distance = 5/6 miles

Time = 25 minutes (Convert to hour)

Time = (25/60) hour = 5/12 hour

Hence,

$Speed = \frac{Distance}{Time}$

$Speed = \frac{5/6miles}{5/12 hour}$

$Speed = \frac{5}{6} \times \frac{12}{5}$

$Speed = 2 miles/hour$

Hence, Kamlee's speed is 2 miles/hour

4 0

3 years ago