Answer:
5 shirts for $21
Step-by-step explanation:
25.50÷6= 4.25
18.00÷4= 4.50
21.00÷5= 4.20
Answer:
9.8
Step-by-step explanation:
1:49= ratio of carbon to to iron
1+49= steel
50=10pounds
49=?pounds
49 * 10/50
=49/5
=9.8pounds
Answer:
See Below.
Step-by-step explanation:
We are given the equation:

And we want to prove that:

Find the first derivative by taking the derivative of both sides with respect to <em>x: </em>
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Divide both sides by 2<em>y: </em>
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Find the second derivative using the quotient rule:

Substitute:

Simplify:

Combine fractions:

Simplify:

Cancel:

Substitute:

Simplify. Hence:

Q.E.D.
Answer:
Total Land Area of the United States is 3,537,438 square miles
Step-by-step explanation:
Given:
total land area of Tennessee = 53,927 square miles
total land area of the United States = 3,483,511 square miles + total land area of Tennessee= 