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svet-max [94.6K]
3 years ago
11

Determine whether the two expressions are equivalent. If so, tell what property

Mathematics
1 answer:
Aleksandr-060686 [28]3 years ago
8 0

Answer:

They are equivalent by Associative Property

Step-by-step explanation:

(3•6)•9 is 18•9 which is 162

3•(6•9) is 3•54 which is also 162

So the difference between the two expressions is that they are grouped differently. In the first expression the 3•6 had to be multiplied first. In the other expression the 6•9 had to be multiplied first. But really both were 3•6•9 and it's all multiplication and can happen in any order. But the order 3, 6, 9 did not change. That is Associative property that says you can multiply by grouping factors differently and still get the same answer.

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What value of x will make the faction equivent 3/5=x/36
amid [387]

Answer:

x = 21.6

Step-by-step explanation:

<u>Solution by Cross Multiplication</u>

For the equation

35=x36

The cross product is

3×36=5×x

Solving for x

x=3×365

and reducing

x=21.6

<u>Solution by Proportion</u>

Since the equation is an equality

If

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Then it is true that

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Solving for x

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x = 21.6

6 0
3 years ago
Junnie walked for 2.5 hours at a distance of 3.2miles per hour. Maurice walked for 1.8 hours at a speed of 4.1 miles per hour.
GREYUIT [131]

We are given speed and time for Junnie and Maurice.

We will use speed distance formula here to find the distance covered by Junnie and Maurice.

The formula is given by:

speed= \frac{distance}{time}

distance = speed * time

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We are given speed of Junnie as 3.2 miles per hour and time taken by her is 2.5 hours.

Plugging these values to find distance:

Distance = 3.2 * 2.5 = 8 miles

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We are given speed of Maurice as 4.1 miles per hour and time taken by her is 1.8 hours.

Plugging these values to find distance:

Distance = 4.1 * 1.8 = 7.38 miles

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Now let us find how much farther did Junnie walked.

We can find that by finding the difference between the two distances.

Difference = Distance covered by Junnie - distance covered by Maurice

Difference = 8- 7.38 = 0.62

(B) So Junnie walked 0.62 miles farther.

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How many moles are in 2.75 x 10^23​ atoms of Sulfur ? please show steps
zimovet [89]

Answer:

2.75x(1023)

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=2.7499999999999997e+23x

Step-by-step explanation: Hope this help

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Answer:

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4 years ago
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