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03.12.2021 •
Mathematics
(-2×0.7-1)÷-2
I got 1.2 but not sure if its right.
Solved
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Ответ:
1.2
Step-by-step explanation:
First you multiply -2 and 0.7
Which is -1.4
-1.4-1 is
-2.4/-2
is 1.2
So you are correct the answer is
1.2
Good Job on getting it!
Ответ:
You are correct.
Step-by-step explanation:
{(-2 × 0.7) - 1} ÷ (-2)
=> {-1.4 - 1} ÷ (-2)
=> -2.4 ÷ (-2)
=> -2.4 ÷ -2
=> 2.4 ÷ 2
=> 1.2
Therefore, you are right.
Hoped this helped.
Ответ:
x = 9
Step-by-step explanation:
you can solve with 2 way. First:
a( b + c) = ab + aca ( b - c) = ab - aca ( b + c) -d = ab + ac -dSo => 5 ( 4x - 5 ) = 5.4x - 5.5
5.4x - 5.5 = 20x - 25
20x - 25 = 155
20x - 25 + 25 = 155 + 25
20x = 180
x = 9Second way:
ifSo: 5 ( 4x-5 ) = 155
(4x -5) =
(4x-5) = 31
4x -5 +5 = 4x +5
4x = 36
x = 9Hope this helps ^-^