Answer:
0.65
Step-by-step explanation:
Add together 7 and 13: there are 20 cards.
Then the theoretical probability of selecting a red card will be:
13
------- = 0.65
20
Answer:
The answer is in these pics.
Step-by-step explanation:
Take a look at this
#a
m<5=40°
#b
m<2=140
#c
<5 and <2 are linear pair(looked properly in diagram) Hence they are supplementary.
#d
<5 and 2 are same side interior angles (Clearly shown on diagram .
- We can call them co responding interior angles and their sum will be 180 if lines are parallel
#e
a||b
Let's verify
Let the angle below <1 be <3
Now
<2+<3=180
<5+<4=180

Hence verified
It is 10 times bigger. It is easy because you can do 50 x 10 which is 500 and you know it is 10 times bigger.
1 / 10 is the easiest answer. Remember ratios are just percentages. It could also be 2/20, 3/30, as long as it is 10%.