pedro had 80 of the amount needed to buy a game of this amount you spent 15 on a watch and therefore you will need to add
Question
Pedro had 80% of the amount needed to buy a game. Of this amount, you spent 15% on a watch and therefore, you will need to add another R$640.00 to purchase this game. Is the value of the game?
112
likes
558 views
Answer to a math question Pedro had 80% of the amount needed to buy a game. Of this amount, you spent 15% on a watch and therefore, you will need to add another R$640.00 to purchase this game. Is the value of the game?
Answer:
2000
Step by step solution:
Let x be the amount of the game.
At first you have 80% of the amount. So, it is 0.8x.
15% of that, you used, that is (0.8x)(0.15)
We subtract that to the initial amount, 0.8x-(0.8x)(0.15)
The difference is 640 less than the amount of game, x - 640
So, we have x - 640 = 0.8x - (0.8x)(0.15)
Solve for x.
x = 2000
Frequently asked questions (FAQs)
Question: What is the sine of an angle in a right triangle if the length of the opposite side is 10 units and the hypotenuse is 15 units?
+
Math question: What is the vertex form of the quadratic function whose vertex is at (-2, 5) and opens upwards?
+
Math question: What is the absolute value of the complex number (4 + 3i)?