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3 years ago

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1) Calculate the number of ways in which 5 lottery balls can be selected from a pool of 35 balls. What is the probability of win

ning such a lottery by matching all 5 numbers in no particular order

1 answer:

sammy [17]3 years ago

4 0

Every badge feet. Cry cry. Fr we. Fed. Hh das bubble. Feed.

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Vu is three times as old as Wu. In 25 years Wu will be twice as old as Vu. How old is Vu now?

Vinil7 [7]

Answer: Vu is 15 years old now.

Step-by-step explanation:

Let present age of WU be x.

Then, the present age of Vu = 3x

Also, After 25 years

Age of Wu = x+25

According to the question:

$(x+25)=2(3x)\\\\\Rightarrow\ x+25=6x\\\\\Rightarrow\5x=25\\\\\Rightarrow\ x=5$

Present age of Vu = 3(5) = 15

Hence, Vu is 15 years old now.

8 0

3 years ago

Angle XYZ = 2X° and angle PQR = (8X -20)°. If angle XYZ and angle PQR are supplementary, find the measure of each angle. Angle P

Alchen [17]

Answer:

$PQR = 140$

Step-by-step explanation:

Given

$XYZ = 2X$

$PQR = 8X - 20$

Required

Find PQR

Since both angles are supplementary, we have:

$XYZ + PQR = 180$

This gives:

$2X + 8X - 20 = 180$

$10X - 20 = 180$

Collect Like Terms

$10X = 20 + 180$

$10X = 200$

Divide through by 10

$X = 20$

Substitute 20 for X in $PQR = 8X - 20$

$PQR = 8 * 20 -20$

$PQR = 140$

7 0

3 years ago

6d+23=14(d−2) what is the answer

Amanda [17]

6d+23=14(d-2)
6d+23=14d-28
6d+51=14d
51=8d
51/8= 6.375 or 6 3/8

Hope this helps :)

4 0

2 years ago

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Find the radius.<br> 120°<br> Sector Area = 66.99

Charra [1.4K]

Answer:

radius = 7.998170905 or about 8 units of measurement

5 0

3 years ago

2/3y - 2/5 = 5 and please show work Algebra

Travka [436]

2/3y-2/5=5

We move all terms to the left:

2/3y-2/5-(5)=0

Domain of the equation: 3y!=0

y!=0/3

y!=0

y∈R

determiningTheFunctionDomain

2/3y-5-2/5=0

We calculate fractions

There is no solution for this equation

3 0

3 years ago

Read 2 more answers