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julsineya [31]
3 years ago
11

tell which property the statement illustrates. please help with this question i will mark you brainliest!

Mathematics
1 answer:
QveST [7]3 years ago
6 0

Associative property of addition.

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Can someone explain to me step by step how to do -2.5 x -20.
zavuch27 [327]

Answer:

50

Step-by-step explanation:

-2.5 × -20

negative multiply negative equals positive

(-) × (-) = (+)

so, the answer would be positive.

-2.5 × -20

= <u>5</u><u>0</u>

8 0
3 years ago
how do you solve this problem. there are approximately 2.1 million deaths per year in country A. Express this quantity as deaths
slamgirl [31]
Well... we know that... there are 365 days in a year, unless is a leap-year, but we'll use 365 anyway

and each day has 24hrs, each hr has 60 minutes

so. let us use those ratios

\bf 2.1million\iff 2.1E6\iff 2,100,000\qquad thus&#10;\\\\\\&#10;\cfrac{2100000\ deaths}{1\ year}\cdot \cfrac{1\ year}{365\ day}\cdot \cfrac{1\ day}{24\ hr}\cdot \cfrac{1\ hr}{60\ minute}

so.. multiply and simplify, cancelling out any like-units atop and bottom

notice, all we do, is use the ratios, in a way, that if we need one unit to be changed, we flip the ratio

for example, to toss away "year" unit, since in the first fraction is at the bottom, then we put it on the top on the ratio, year/year  = 1, effectively cancelling the unit
5 0
4 years ago
Read 2 more answers
Simplify:<br>{15×115-(-3)}(4-4)÷3{5+(-3)×(-6)}​
Maurinko [17]
  • (15×115-(-3)}(4-4)÷3{5+(-3)×(-6)}
  • (1725+3)(0)÷3{5+18}
  • (1728)(0)÷3(23)
  • 0÷69
  • 0
5 0
2 years ago
Read 2 more answers
2.3 repeating as a fraction​
Marat540 [252]
23/10 = 2 and 3/10




I hope this helped
7 0
3 years ago
Read 2 more answers
Write an absolute value function that shifted 2<br> units right.<br><br> HELPPPP
iVinArrow [24]

Answer: (a)

Step-by-step explanation:

Suppose the original function is y=\left | x \right |

To shift it 2 units right, replace x by x-2 such that

\Rightarrow x-2=0\\\Rightarrow x=2

So, the function becomes y=\left | x -2\right |

4 0
3 years ago
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