2 years ago

Why does the notation 13c- have a negative sign

1 answer:

6 0

<span>The negative symbol or negative sign simply indicates that for the C ion, there are more electrons than proton. Since it is – alone without number, this automatically indicates a number of -1. This means that there is one more electron than proton.</span>

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Haruka hiked several kilometers in the morning. She hiked only 6 kilometers in the afternoon, which was 25%, percent less than s

Semenov [28]

Answer:

14 km

Step-by-step explanation:

6 km in the afternoon

x km in the morning

6= x- 25%

6= 0.75x

x= 6/0.75

x= 8 km

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4 0

2 years ago

A group of adults and students went on a class trip to Washington, DC. The number of male students was 1 more than 7 times the n

AVprozaik [17]

X number of male students
Y number of female students
Z number of the adults
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Y= X/2
X +Y +Z = 82
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2 years ago

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Gala2k [10]

Answer:

The dimensions of the box are 12 cm , 12 cm , 12 cm

Step-by-step explanation:

Let x , y and z be the dimensions of box

Volume of box =xyz=1728

$z=\frac{1728}{xy}$