Answer: I don’t know if you want the area or just y but anyways, y= 9
Step-by-step explanation:
The question requires a scale factor (since both triangles have similar sides (an equal ratio is a good way to think about it) the 10cm side of the large triangle is proportionate to the same side of the smaller triangle.
In other words to get that scale factor (how much one shape is bigger than the other) we need to divide the 10 by 4 (you need to use the same side you can’t do 10/6 because they are completely different sides) 10/4 = 2.5
Now we know the larger triangle is 2.5 times bigger than the smaller triangle. This means the smaller triangle is 2.5 times smaller than the big triangle. So to find the base of the larger triangle we use a similar method we used to find the scale factor (but not divide multiply because when you want to find the bigger you multiply when you want to find scale factor/ smaller you divide) so 6* 2.5= 15 and since y is not the entire base only a part of it, we can do 15(which is the entire length of the big triangle base) - 6 = 9
Therefore y=9
Answer:
No
Step-by-step explanation:
From part (b)
If number who voted = 280
Number of voters who would have voted Geron:
35% * 280
0. 35 * 280 = 98 voters
40 people voted for others:
To check if estimate from. Part b is accurate :
10% voted for others
10% of estimated voters = 40
Let, number of estimated voters = x
0.1 * x = 40
0.1x = 40
x = 40/0.1
x = 400
If 40 people Voted others, the the number of voters should be 400 and not 280
A triangle is usually 180 degrees so decided that by 3
Answer:
the common ratio is 0.98.
Step-by-step explanation:
A fish population in a lake decreases by 2% each year. We are asked to find the common ratio.
The decrease of population of fish 2% annually means the population becomes next year 100% - 2% = 98%
Therefore, the common ratio would be 98%. Upon converting 98 percent to a decimal we will get,
98% = 
Therefore, the common ratio or decay factor is 0.98.
Answer:
80 percent
Step-by-step explanation:
