nataliahenderso
06.10.2020 •
Mathematics
When simplified, which of the following expressions has a coefficient of 5?
-4 x - 9 x
4 x - (-9 x)
-4 x + 9 x
4 x - 9 x
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Ответ:
the 3rd one... -4x + 9x
Step-by-step explanation:
your are basically subtraction 9 to 4 and thats 5
Ответ:
$48.60
Step-by-step explanation:
4 7/5 is a funny way to express a fraction... but anway if this is correct, then the answer is as follows:
5/6 kg > cost $7.50
1 kg > costs $7.50 ÷ 5/6 kg = $9
4 7/5 kg > costs $9 x (4 7/5) = $9 x (27/5) = $48.60