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ValentinkaMS [17]
4 years ago
7

Using the associative property of multiplication, which expression is equivalent to 5(9x)?

Mathematics
2 answers:
slavikrds [6]4 years ago
8 0
The associative property states that you can move parenthesis around without affecting the solution to the equation/expression.
Example:
5 • (3 • 2) = (5 • 3) • 2
Which is also written as 5(3•2) = (5•3)2

A is not correct either way since adding and multiplying would have completely different results.
B moves the values, not the parenthesis, although it would be the same.
C uses the distributive property, not associative.
D uses the associative property and is correct.
So the answer is D.
Marrrta [24]4 years ago
3 0
D (5x9)x because the parentheses are switched but the values are the same
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Evaluate the expression z+4/3x when x=2
mel-nik [20]

hi <3

just substitute the value into x

(2+4)/3(2)

now we have:

6/6

thus, your answer would be 1

hope this helps :)

5 0
3 years ago
how to wrok out a rate of 15 orders every 5 hours. At this rate, how many hours will it take to ship 156 orders
VLD [36.1K]

Answer:

52 hours

Step-by-step explanation:

Given that it takes 15 orders every 5 hours.

With that we can find that it takes 3 orders every hour. Using that we can find that in 52 they would have shipped 156 orders

With that we find that the answer is 52 hours

4 0
3 years ago
Plz can some one look at this
Delicious77 [7]
Add up the values for Craig and Sheila, which is 25 and 40 respectively

25+40 = 65

Answer: 65

The error made is that the random simulation is perfectly going to match up with the theoretical values. It never works out this way. Though as the number of trials increases, it should get closer and closer.
5 0
3 years ago
Help, 3+7x=12, what is x?
liraira [26]
So just your normal equation. 
We need to isolate x alone. 
First lets write out our equation 
3 +7x = 12 

Lets do this step by step. 

first subtract 3 from both sides. 
3 + 7x = 12  
-3        = -3  it cancels out on the left side and we solve on the right side. 
*************
7x = 9 

second we divide both sides by 7 
7x = 9 
÷7 = 7      we got the x alone and we just write 9/7 as our answer. 

x = 9/7 

Or as a decimal. 
9/7 could be <span>1.28571428571429
</span>
Either will work. 
x = 9/7 
or 
x = <span>1.28571428571429
</span>
Have a nice day. :)



3 0
4 years ago
4 1/2+5 7/8<br><img src="https://tex.z-dn.net/?f=help%20%5C%3A%20please%20%5C%3A%20" id="TexFormula1" title="help \: please \: "
Rasek [7]
9/2+5/78
9/2+47/8
83/8
10 3/8
decimal form 10.375.
hope this helps!
7 0
3 years ago
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