Answer:
40 hours
Step-by-step explanation:
Lets take "x" as the # of hours it takes the lava to reach the sea
since there is a lava flow of 0.5 kilos per hour
we will multiply "x" with 0.5
0.5x
now the tube system is 20 kilometers long
this means that at a rate of 0.5 kilos per hour the lava will reach the sea once it is 20 kilometers deep
so
0.5x=20
divide "0.5" by both sides to eliminate the coefficient

x=40
it will take 40 hours for the lava to reach the sea
Hope this helps!
Answer:
1 pair of socks cost $6.99
Step-by-step explanation:
$27.96 divided by 4 = $6.99
Hope I helped :)
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There are 7 tens, so i want to say 10^7
10 to the seventh power
Answer:
12:28
Step-by-step explanation:
its just like fractions if the fraction is 3/7 you can turn it into whatever you want
Answer: The expression 13÷5 is a fraction. Here the only option that makes sense as per this expression is:
B. Each of 5 cupcakes used 13 pound of sugar. What is the total amount of sugar used?
Therefore the option B is correct
Also please note:
A fraction is a number that represents a part of a whole. It consists of a numerator and a denominator. The numerator represents the number of equal parts of a whole, while the denominator is the total number of parts that make up said whole.