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Elanso [62]
2 years ago
15

Which property of multiplication or addition was used to rewrite 5(2−7) as (2−7)5 ?

Mathematics
2 answers:
Talja [164]2 years ago
3 0
Associative property
Elza [17]2 years ago
3 0
This is the commutative property of multiplication:
a x b = b x a
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Im having a hard time on this question and I hope you can help.
Masja [62]

The answer would be x ≠ 0

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

First start with the left side, doing distributive property

So... -2(x) = -2x and -2(5) = -10 Therefore on the left side you now have -2x -10

Next do the same on the right side

-2(x) = - 2x and -2(-2) = 4 so you have -2x + 4 + 5 and you add 4 and 5, leaving you with -2x + 9

Now that you have simplified both sides the problem now looks like this:

-2x - 10 = -2x + 9

Because you have equal terms on both sides (-2) those cancel out so you have -10 = 9

Just from looking at this we know that the statement is false because -1o does not equal 9

*The symbol, "≠" means not equal to"

3 0
3 years ago
Read 2 more answers
A class consisting of 4 graduate and 12 undergraduate students is random divided into 4 groups of 4. what is the probability tha
MrRissso [65]
Total = 16
Graduates = 4

\frac{4}{16}  =  \frac{1}{4}
\frac{1}{4}  \div 4  \\ =  \frac{1}{4}  \times  \frac{1}{4}  \\  =  \frac{1}{16}
\frac{1}{16}  = 0.0625
Rounding off to 2 decimal places,
Answer is 0.06

Hope this helps. - M
5 0
3 years ago
​ On a certain hot​ summer's day, 335 people used the public swimming pool. The daily prices are $1.25 for children and $2.00 fo
spin [16.1K]

Answer:

57

Step-by-step explanation:

Let c represent the number of children ($1.75 each) and a represent the number of adults ( $2.00 each).

We know that there were 340 people total, so c + a = 340. This implies that a = 340 - c

We also know that $1.75 c + $2.00 a = $609.25

By substituting a with 340 -c we have $1.75 c + $2.00 (340 -c) = $609.25

Use the distributive property to obtain $1.75 c + $680 - $2.00 c = $609.25

Subtract $680 from both sides and combine like terms to get - $0.25 c = -

$70.75

Now, divide both sides by -$0.25 to get c = 283, the number of children.

The number of adults is 340 - c or 340 - 283 = 57

4 0
2 years ago
Please help me with this please 2
kondaur [170]
Put this into a scientific calculator
1/3 x pi x 18 squared x 16
8 0
2 years ago
If the family pays $25 what is the exact amount of change they should receive
Bingel [31]
What’s the full question? you only put part of it on here
4 0
2 years ago
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