Answer:
67
Step-by-step explanation:
To solve this question ( that is to know the number), we must interpret the statement mathematically. Let the unknown number be T then,
547% of T = 366.49
547 * T/100 = 366.49
547T = 36646
T = 36649/547
= 67
It means that 547% of 67 gives 366.49
Here is the answer. First change 20cm in mm = 200mm
ratio = 70mm/200
= 7 : 20
Hope this helps! Mark brainly please!
Answer:
4x² + 13x + 3 and 2x² - 3x - 17
Step-by-step explanation:
(a)
f(x) + g(x)
= 3x² + 5x - 7 + x² + 8x + 10 ← collect like terms
= 4x² + 13x + 3
(b)
f(x) - g(x)
= 3x² + 5x - 7 - (x² + 8x + 10)
= 3x² + 5x - 7 - x² - 8x - 10 ← collect like terms
= 2x² - 3x - 17
The rate that represents this situation would be 50 miles in an hour.
