Sorry but i only know the answer to number 3
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A rational number is a number that can be written as a fraction where numerator and denominator are both integers (and the denominator is not zero).
Since 0.57 = 57/100, so the number 0.57 can be written as a fraction where the numerator (57) and denominator (100) are both integers. </span>
Answer:
x = 850
Step-by-step explanation:
312·85 + 689·85 - 100x = 85
Divide the whole equation by 85:
312 + 689 - ¹⁰⁰/₈₅.x = 1
1001 - 1 = ²⁰/₁₇.x
x = ¹⁷/₂₀·1000
x = 50 × 17
x = 850
Please find attached photograph.
The answers are:
1) 2.5ab
2) 1/100 b^2
The sum of the two smaller sides must be greater than longest side.
A) 3+2 > 7 ..... False
B) 6+10 > 14 ... True
C) 3+2 > 5 ....False
D) 23+18 > 42 ....False
Answer is B