Answer:
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Step-by-step explanation:
0/0 = error
No, it does not make any sense to say that the density of helium is 0.1785 kilograms per square meter.
<h3>How to express the density of an element?</h3>
No, it does not make any sense to say that the density of helium is 0.1785 kilograms per square meter.
The reason why it doesn't make sense is because density of helium, and all the rest of the chemical elements are calculated as;
Density = mass/volume
where;
mass is measured in kilograms.
volume is measured in cubic meter.
Thus, the density of the helium should be expressed as 0.1785 kilograms per cubic meter.
Read more about Density at; brainly.com/question/1354972
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5:3 because a week has 7 days and 21 days make 3 weeks
Answer:
umm there isn't a subtraction sentence
Step-by-step explanation:
Answer:
the dryer costs $425
Step-by-step explanation:
x = washer
y = dryer
x + y = 803
x = y - 47
using the second equation a substitute in the first equation we get
y - 47 + y = 803
2y = 850
y = $425
FYI
x = y - 47 = 425 - 47 = $378