Answer:
area = 6x^2+10x-4 perimeter= 5x+3
Step-by-step explanation:
the last one because 7*3=21 14*3=42 and 21*3=63
Answer: The largest angle is 7x
Step-by-step explanation:
Their sum is 180, so
3x + 5x + 7x = 180
5x = 180 --> x = 12
The largest angle is 7x, which is 7(12) = 84
Answer: There are
in one inch.
Answer:
5
Step-by-step explanation:
40% means 40 parts out of 100. If we have made the numerator of the fraction 2, we have divided 40 by 20. To make this fraction equal to 40/100, we have to divide 100 by 20 as well, giving us 5.