if a certain number is decreased by 7 and the difference is then multiplied by 7, the result is the same as when the number is decreased by 11 and that difference is multiplied by 11. Write an equation to represent this situation?

A tree casts a shadow 9 meters long. at the same time, a building 54 meters tall casts a shadow 21 meters long. to the nearest meter, what is the height of the tree?

Which equation shows the result of substituting and expression for y from the first equation into the second equation for the given system? ly=x+5 ly-2x=2 (5 - X) - 2x = 2 (x + 5) - 2x = 2 (x + 5) + 2x = 2 (x + 5) - 2x = 0

If pg=50 and gr = 15, then what is the value of g (p+r)

In a function, every output value corresponds to exactly one input value true or false

Which expression is equivalent to six over fifteen? 6 : 15 15 : 6 6 - 15 15 - 6

the width of a rectangle is 5 inches less than its length, and the area is 14 square inches. What are the length and width of the rectangle?

Are these correct steps for solving 9x^2=108

Write the expression as a single natural logarithm. 3 ln 3 + 4 ln b ln 96b4 ln (27 + b4) ln 36b ln 27b4

Ralph sold brownies for $ 0.63 0.63 a piece in order to earn money to buy baseball cards. If the cards cost $ 1.35 1.35 per pack, and if Ralph had no money left over after buying them, what is the least number of brownies he must have sold?

The segments shown below could form a triangle 9,4,15 true or false