Wei has $150.00 to make a garland using 60-cent balloons. he wants to purchase 100 blue balloons and some number of white balloons. he learns that the white balloons are on sale for half price. he writes and solves an equation to find the number of white balloons he can purchase. which models can be used to solve the problem? a. 100b + w = 150; 6,000 + w = 150 b. 100b + w = 150; 100b + 30 = 150 c. 0.60b + 0.30w = 150; 60 + 0.30w = 150 d. 0.60b + 0.30w = 150; 100 + 0.30w = 150answer is c

the correct answer is you spend $55.78 more in a brand store that buy ing in a normal store.

step-by-step explanation:

brand = spend   $ 135.85 total

store = spend $80.07 total

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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rauschg

rauschg · hand

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