jakadendin
07.05.2021 •
Mathematics
Yan has already finished Three-fifths of the 45 math problems he was assigned today. Each math problem took him 1Four-fifths of a minute to complete. If this pace continues, how much more time, to the nearest minute, will the rest of the problems take him to finish?
18 minutes
27 minutes
32 minutes
43 minutes
Solved
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Ответ:
32
Step-by-step explanation:
Ответ:
The answer is -2.
Step-by-step explanation:
In order to solve the problem, you need to first set up an equation, with a variable, and solve using inverse operations. Using context clues from the problem, we know that 'difference' is subtraction, 'times' is multiplication and 'equal' is the equal sign, or total. So, using the numbers and clues, I can set up the following equation: 8x - 3 = -19. To solve for 'x' I need to first add 3 to both sides of the equation to get 8x = -16. Next, I need to divide both sides of the equation by 8 to get x = -2. Therefor, your final answer is -2. You can double-check by putting this number into the equation and solving: 8x(-2) - 3 = 16, or -16 - 3= -19, -19 = -19.