Answer:
x = 348
Step-by-step explanation:
The measure of angle ABD is (0.15x+65) and the measure of angle CBD is(0.1x+28) . Find the value of x.
0.15x + 65 + 0.1x + 28 = 180
0.25x + 93 = 180
0.25x = 180 - 93
0.25x = 87
x = 87/0.25
x = 348
How to find each one: So first, if you have a fraction, (you probably want to simplify the ones you've put in by dividing both sides by the same number, for example, 45/100, both sides by 5, 9/20)
So if you have a fraction:
You can find the ratio by just putting the numerator on the left, n:, and the denominator on the right. n:d
For example, with 5/9, 5:9.
For decimal, you can just divide. For example, 4/5, 0.8.
Percent, just change the decimal to have a hundredths place, with 0.8, 0.80, and then just take those two digits, or 80%.
So basically, for ratio, you can do it if you have the fraction.
For the column fraction, if you know basic fractions, you can also convert from those, and also from the ratios.
For decimal, if you know percent or fraction, you should be able to find it.
Percent, fraction or decimal should work.
I'll do a row to explain, it's kind of confusing, sorry:
So if you have 9:20, you can convert that to the fraction, 9/20.
Then you can find the decimal, 9/20 = 0.45
Percent would therefore be 45%.
Hope this helped :)
A = 54 because alternate interior angles
b = 72 because 54+54=108 and 180-108=72
c = 108 because b and c are supplemental angles
d = 72 because b and d are corresponding angles
e = 162 because 72+90=162 and definition of a straight line
f = 18 because definition of a straight line
g = 81 because definition of an isosceles triangle
h = 49.5 because vertical angles and definition of an isosceles triangle
i = 130.5 because definition of a straight line
j = 31.5 because 49.5-18=31.5
k = 99 because corresponding angles
bcegk = 540
Answer:
6g-90h+6320gh-720h²-4480g²
Answer:
Pete
Step-by-step explanation:
Given that:
Mandy's Estimate :
Number of spins , n = 20
Pete's Estimate:
Number of spins, n = 200
A good probability estimate is one which has narrow margin of error with a high degree of confidence. These two variables are affected by sample size.
A high sample size give a narrower margin of error and increases the confidence level probability
Based on the sample size used by each of Pete and Mandy, we can conclude that, Pete's probability estimate would be better due to its significantly higher sample size.