U S Lighthouses Being Sold
u s lighthouses being sold
How to solve 4 7th grade math problems?
please answer as many u can!!
and can u please tell me how u got da answer?
plz&thx
1.John Lighthouse makes stained glass lamps. John spent $5000 to set up his business. It costs John $30 to make each lamp. If John plans to sell the lamps for $70 each, how many lamps would Jonas have to sell to recover the $5000 set-up cost and the cost involved in making each of the that he sold?
2. A right triangle has a side length of 21 inches and a hypotenuse of 29 inches. A second triangle is similar to the first and has a hypotenuse of 87 inches. What is the length of the shortest side of the second triangle?
3. Let the function R * S be defined as R * S=2R+S squared. For instance, 2 * 3 would have a value of (2 X 2 + 3 squared), which yields a value of 13. What is the value of 4 * -1?
4.If n > 1, what is the smallest positive integer n such as that the expression the radicand says 1+2+3+...+n simplifies to an integer?
1. working equations:
5000 < (70-30)L then solve for L.
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