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2 years ago

A bird is gliding at 40 meters per minute. How long, in minutes, will it take the bird to travel 160 meters?

Mathematics

1 answer:

adoni [48]2 years ago

6 0

Answer:

4 minutes

Step-by-step explanation:

40=1 min

40=2 min

40=3 min

40=4 min

40x4 or 40+40+40+40 is 160

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In a certain Algebra 2 class of 30 students, 19 of them play basketball and 12 of them play baseball. There are 8 students who p

Alenkinab [10]

Answer:

Probability that a student chosen randomly from the class plays basketball or baseball is $\frac{23}{30}$ or 0.76

Step-by-step explanation:

Given:

Total number of students in the class = 30

Number of students who plays basket ball = 19

Number of students who plays base ball = 12

Number of students who plays base both the games = 8

To find:

Probability that a student chosen randomly from the class plays basketball or baseball=?

Solution:

$P(A \cup B)=P(A)+P(B)-P(A \cap B)$ ---------------(1)

where

P(A) = Probability of choosing a student playing basket ball

P(B) = Probability of choosing a student playing base ball

P(A \cap B) = Probability of choosing a student playing both the games

Finding P(A)

P(A) = $\frac{\text { Number of students playing basket ball }}{\text{Total number of students}}$

P(A) = $\frac{19}{30}$ --------------------------(2)

Finding P(B)

P(B) = $\frac{\text { Number of students playing baseball }}{\text{Total number of students}}$

P(B) = $\frac{12}{30}$ ---------------------------(3)

Finding $P(A \cap B)$

P(A) = $\frac{\text { Number of students playing both games }}{\text{Total number of students}}$

P(A) = $\frac{8}{30}$ -----------------------------(4)

Now substituting (2), (3) , (4) in (1), we get

$P(A \cup B)= \frac{19}{30} + \frac{12}{30} -\frac{8}{30}$

$P(A \cup B)= \frac{31}{30} -\frac{8}{30}$

$P(A \cup B)= \frac{23}{30}$

7 0

2 years ago

F(x)=-2(x-3)(x+5) convert quadratic functions to standard form

jasenka [17]

Answer:

The answer is: f(x) = -2x^2 - 4x + 30

Step-by-step explanation:

Given:

f(x)=-2(x-3)(x+5)

Solve (x-3)(x+5) first, then multiply by -2:

f(x) = -2[(x - 3)(x + 5)]

f(x) = -2[x^2 -3x + 5x - 15]

f(x) = -2[x^2 + 2x - 15]

f(x) = -2x^2 - 4x + 30

Hope this Helps!! Have an Awesome Day!! (-:

4 0

2 years ago

The percentile of 1.2 equals?

laila [671]

It’s 0.3 because that’s the answer

6 0

2 years ago

The Commerce Department reported receiving the following applications for the Malcolm Baldrige National Quality Award: 23 from l

Rzqust [24]

Answer:

42.2% of the applications came from small businesses

Step-by-step explanation:

the percentage of applications that came from small businesses can be calculated through:

percentage from small businesses = applications from small businesses / total number of applications = 30 / (23+18+30) = 0.422 (42.2%)

4 0

3 years ago

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Tickets for a game Cost $2 for students and $5 for adults. The number of students was 3 less than 10 times the number of adults.

Elina [12.6K]

Question

Tickets for a game Cost $2 for students and $5 for adults. The number of students was 3 less than 10 times the number of adults. The total amount of money from ticket sales was $619. How many of each tickets were sold?

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers