Given: triangle pqr with m∠p=(5x)° , m∠q=(5x)° , and m∠r=(8x)° . prove: x = 10 by the triangle sum theorem, the sum of the angles in a triangle is 180°. therefore, using the given and triangle , . using the substitution property, (5x)°+(5x)°+(8x)°=180° . simplifying the equation gets 18x = 180. finally, using the division property of equality .

Students buying lunch at rockwell elementary school yesterday chose either burritos or pizza. 185 students chose burritos and 252 chose pizza. 1. estimate the number of students who brought lunch by rounding each number to the nearest hundred. 2. estimate how many students bought lunch by rounding each number to the nearest ten. 3. find the total number of students who brought lunch. which of your estimates is closer to the actual total? explain. 4. draw a figure on a sheet of paper. estimate how many pennies will fit inside the figure. check your prediction using pennies.

What is the maximum total area that 450cm of string can enclose if it is used to form perimeters of two adjoining rectangles as shown?

If 1 is divided by the sum of y& 4. the result is equal to 3 divided by 4 .find the value of m?