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Airida [17]
3 years ago
11

andrew has a set of 20 baseball stickers. Andrew’s brother has 3/4 of the amount andrew has . how many baseball stickers does an

drew’s brother have ?
Mathematics
2 answers:
Likurg_2 [28]3 years ago
7 0

Answer:

15

Step-by-step explanation:

you need to find 3/4ths of 20, so you need to multiply 20 by 3/4. this'll give you 15.

Free_Kalibri [48]3 years ago
3 0

Answer:

15

Step-by-step explanation:

3/4 times 20 is equal to 15

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A new security system needs to be evaluated in the airport. The probability of a person being a security hazard is 4%. At the ch
ivolga24 [154]

Answer:

(a) 0.9412

(b) 0.9996 ≈ 1

Step-by-step explanation:

Denote the events a follows:

P = a person passes the security system

H = a person is a security hazard

Given:

P (H) = 0.04,\ P(P^{c}|H^{c})=0.02\ and\ P(P|H)=0.01

Then,

P(H^{c})=1-P(H)=1-0.04=0.96\\P(P|H^{c})=1-P(P|H)=1-0.02=0.98\\

(a)

Compute the probability that a person passes the security system using the total probability rule as follows:

The total probability rule states that: P(A)=P(A|B)P(B)+P(A|B^{c})P(B^{c})

The value of P (P) is:

P(P)=P(P|H)P(H)+P(P|H^{c})P(H^{c})\\=(0.01\times0.04)+(0.98\times0.96)\\=0.9412

Thus, the probability that a person passes the security system is 0.9412.

(b)

Compute the probability that a person who passes through the system is without any security problems as follows:

P(H^{c}|P)=\frac{P(P|H^{c})P(H^{c})}{P(P)} \\=\frac{0.98\times0.96}{0.9412} \\=0.9996\\\approx1

Thus, the probability that a person who passes through the system is without any security problems is approximately 1.

7 0
3 years ago
Which is more 65 ounces or 4 pounds
STatiana [176]

Answer: 24 oz to lbs = 1.5 lbs in 24 oz. 32 oz to lbs = 2 lbs in 32 oz. 64 oz to lbs = 4 lbs in 64 oz.

Step-by-step explanation:

In 65 oz there are 4.0625 lb.

Which is the same to say that 65 ounces is 4.0625 pounds.

8 0
3 years ago
Read 2 more answers
I need help fast please...
BARSIC [14]

Answer:

87: y = 5

88: y = 0

89: y = -2

90: y = -1/2x + 9

91: y = 2x - 16

92: y = x - 11


Step-by-step explanation:

To find the slope(m): (y1 - y2)/(x1 - x2)

To find the y-intercept:

y = mx + b

Replace m with the slope and x and y with one of the sets of coordinates. Then simplify to get the y-intercept. Use the equation y = mx + b and replace m with the slope and b with the y-intercept to get the equation.


(Sorry if this is a little confusing.)

5 0
3 years ago
Does the table show an exponential function?
Alexus [3.1K]

Yes it does the line will gradually increase

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Neil mixes 110 liter of red paint with 310 liter of yellow paint. How many liters of paint does Neil have after mixing the paint
Zolol [24]

Answer:

He has 420 liters of paint.

Step-by-step explanation:

all you have to do is add 110 = 310

5 0
3 years ago
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