3 years ago

Which statement is true about whether A or B are independent events

Mathematics

2 answers:

labwork [276]3 years ago

7 0

Answer:

Step-by-step explanation:

lapo4ka [179]3 years ago

6 0

Answer:

b. a and b afre independent events

Step-by-step explanation:

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Two cyclists leave city at same time, one going east and the other going west. The westbound cyclist bikes 3 mph faster than the

Bumek [7]

Speed of the east bound cyclist is 12 mph and the speed of west bound cyclist is 15 mph.

<u>Solution:</u>

Let us assume that x is speed of slower eastbound cyclist

So, x+3 will be the speed of faster westbound cyclist

We know that distance is the product of speed and time. That is,

$\text{Distance}=\text{Speed}\times\text{Time}$

West-bound DATA:

Rate of speed = x+3 mph ; Time = 6 hrs ; distance = 6(x+3) = 6x+18 miles

East-bound DATA:

Rate of speed = x mph ; time = 6 hrs. ; distance = 6x miles

On solving,

Distance apart = 162

$\Rightarrow6x+18+6x = 162$

$\Rightarrow12x=162-18$

$\Rightarrow x=\frac{144}{12}\rightarrow x=12$

So, the rate of speed of the east bound cyclist is 12 mph and the rate of speed of the west bound cyclist will be $x+3=12+3=15 \text{ mph}$

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2 years ago

Look at the subtraction expression: 7-8 Which of these addition expressions is equivalent to the subtraction expression above? C

MArishka [77]

•Given 7 - 8 = -1
• -[-7 + 8] = -1, This choice
• 0 - 7 + (-8) = -15
• 7? + -8 = -1, This choice (if I understand “07” correctly)
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3 years ago

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Can someone please answer. There is a picture. There is only one question. Thank you so much

KatRina [158]

Hello,

Answer A

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2 years ago

Explain why 1/2 is not equivalent to 2/5.

juin [17]

Find ing the common denominator would make it 10.
for 1/2 to get to 10 you have to multiply by 5
1/2x5= 5/10
then you have to convert 2/5 to get the denominator to be 10
so you multiply 2/5 by 2
2/5x2= 4/10
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For g(x) = 1/3x – 2, find the value of x for which g(x) = -4

kirill [66]

Answer is attached ! Hope it helps

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2 years ago