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2 years ago

Write an equation for this word sentence: one fifth of a number equals 16.

Mathematics

2 answers:

horsena [70]2 years ago

8 0

Answer: x / 5 = 16

x = 80

Airida [17]2 years ago

7 0

Answer is 1/5n = 26
Step by step
Using n=number
One fifth of a number is
1/5n
Equals 16
=16

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3 years ago

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poizon [28]

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3 years ago

The perimeter of this shape is 29 cm. What the value of x?

lesya692 [45]

Answer:

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Step-by-step explanation:

So first add them all up

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2 years ago

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3 years ago

Each of 100 students in the Allen School can only take 1 CSE class each, between the four classes CSE 311, CSE 312, CSE 331, and

Naddika [18.5K]

Answer:

$P(a=31,b=39,c=7,d=23) = 0.000668$

Step-by-step explanation:

Sample space, n = 100

Let the number of students signed up for CSE 311 = a

Let the number of students signed up for CSE 312 = b

Let the number of students signed up for CSE 331 = c

Let the number of students signed up for CSE 332 = d

Probability of taking CSE 311, $P_a$ = 0.3

Probability of taking CSE 312, $P_b$ = 0.4

Probability of taking CSE 331, $P_c$ = 0.1

Probability of taking CSE 332, $P_d$ = 0.2

$P(a,b,c,d) = \frac{n!}{a! b! c! d!} p_a^{a} p_b^{b} p_c^{c} p_d^{d} \\P(a=31,b=39,c=7,d=23) = \frac{100!}{31! 39! 7! 23!} * 0.3^{31} * 0.4^{39} * 0.1^{7} 0.2^{23}\\P(a=31,b=39,c=7,d=23) = \frac{4.58*10^{111}}{2.13*10^{56}* 5040 }* (1.57*10^{-55})\\P(a=31,b=39,c=7,d=23) = 0.000668$

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3 years ago