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disa [49]
3 years ago
7

Goran and karen walk around a track . goran walks each lap in 10 minutes. karen walks each lap in 6 minutes. they both start at

the starting line at the same time. they walk until they meet again at the starting line. answer the following questions:
How many laps does Goran complete?

How many laps does Karen complete?

How much time does it take for them to meet again at the starting line?
Mathematics
1 answer:
Nimfa-mama [501]3 years ago
7 0
Goran completes 6. karen completes 10. it takes 60 minutes
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How do you completely factor 2^2-9
Maurinko [17]
Step 1. Simplify 2^{2} to 4

4-9

Step 2. <span>Simplify

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5 0
3 years ago
The theoretical probability of drawing a red card from a deck of cards is 1:2. Michael drew 20 cards and received 7 red and 13 b
Anon25 [30]

Answer and Step-by-step explanation:

Theoretical probability is expected probability of an occurrence hence the name theoretical. It is theoretical and not practical as it has not been experimented or actually become practical. Experimental probability on the other hand is probability that has been experimented- it is the result of test of probability on the actual population.

In the case above, the theoretical which is the expected probability that has not been experimented is 1/2 of getting Red cards. This probability is theoretical and therefore may change when tested. Hence the different result of 7 Red and 13 blacks with 20 cards picked when experimented

6 0
3 years ago
Evaluate if x = 2 and y = -4: x³ + y² *
Marta_Voda [28]

Answer:

=24

Step-by-step explanation:

Evaluate for x=2,y=−4

23+(−4)2

23+(−4)2

8 0
3 years ago
(◞ ‸ ◟) PLEASE HELP PLEASE HELP PLEASE HELP PLEASE HELP ≧﹏≦
Natasha_Volkova [10]

6. Classify the angle as acute, right, obtuse, or straight.

A. obtuse

B. acute

C. straight

D. right​

(THE ANSWER IS OBTUSE ANGLE)

An Obtuse Angle Is what your looking at right now. Its angle is bigger than 90 degree.

A Acute angle is lower than 90 degree which tends to make something looking like the “<” “>” sign.

And straight angle is just a straight line (No kidding)

A right angle is justs a L shape sign. The corner of the L 90 degree

3 0
3 years ago
Machine A can fill an order of widgets in a hours. Machine B can fill the same order of widgets in b hours. Machines A and B beg
ycow [4]

Answer:

Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.

Step-by-step explanation:

Consider the provided information.

Machine A can fill an order of widgets in a hours. Machine B can fill the same order of widgets in b hours.

Thus, in 1 hr machine A's work is 1/a and machine B's work is 1/b.

We need to find whether the Machine A's rate the same as that of Machine B?

Statement 1: Machines A and B finish the order at exactly 4:48 p.m.

Total time, A and B worked = 4:48 = 4+\frac{48}{60} hrs = 4+\frac{4}{5} hrs= \frac{24}{5} hours

Thus, \frac{1}{a}+\frac{1}{b} = \frac{5}{24}

Let say Machine A's rate the same as that of Machine B

\frac{1}{a}+\frac{1}{a} = \frac{5}{24}\\\\\frac{2}{a} = \frac{5}{24}\\\\a = \frac{48}{5}

It is given that a and b are even integers, but \frac{48}{5} is not an even integer.

Hence, Machine A's rate is not same as that of Machine B.

Therefore, statement (1) ALONE is sufficient.

Statement 2: (a + b)^2 = 400

(a+b)^2 = 400\\a+b=20

There are many possible case in which a and b are even integer and there sum is 20.

If a = b = 10 (both even), then Machine A's rate is same as that of Machine B.

if a = 6 and b = 14 (both even), then Machine A's rate is not same as that of Machine B.

Therefore, No unique answer with statement 2.

Hence, statement 2 alone is not sufficient.

6 0
3 years ago
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