Answer:
Step-by-step explanation:
1 in²=6.45 cm²
598 cm²=x in²
1 in² x in²
______ = _______
6.45cm² 598cm²
Cross multiply
6.45x=598
divide both sides by 6.45
x=92.7 in²
Answer=92.7 in²
The radius of the circular cross-section of the can of soup is; 3.4cm.
<h3>What is the radius of the can of soup?</h3>
Since, the can has a height of 10cm and the volume of the can is 363cm³, it follows that the area of the circular cross-section can be evaluated as;
A = 363/10 = 36.3cm²
Hence, it follows that the radius can be evaluated as follows;
36.3 = 3.14 × r²
r² = 36.3/3.14
r² = 11.56
r = 3.4cm
Read more on volume of a cylinder;
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Answer:
The original price of the phone service is $27.49.
Step-by-step explanation:
With the information provided, you can use a rule of three to find the original price that would represent 100% given that $21.99 represents 80% of that price:
21.99 → 80%
x ← 100%
x=(21.99*100)/80
x=27.49
According to this, the answer is that the original price of the phone service is $27.49.
ANSWER
The solution to the system is

EXPLANATION
The system of equations are:

and

We put equation (2) in to equation (1) to get,

We expand the parenthesis to obtain,

We group like terms to obtain,


This implies that,

We divide through by 5 to get

We substitute the value of y in to equation (1) to get,


This implies that

We divide both side by 3 to get,