You started with 40 baseball cards.
To find the answer to this problem, you need to work backward. 39(your current amount) - 19(the amount you added) = 20. And if 20 is only half of what you started with, you'd need to multiply 20 by 2, which is 40. So you started with 40.
Answer:
1. 3x +7x = 360°
10x = 360
x= 36
measure of first angle = 36*3= 108°
measure of second angle = 36*7 = 252°
D=V [2-(-3)]^2+ [3-(-3)]^2=V 5^2+6^2=V 25+36
d=V61
Answer: 6 tenths
Step-by-step explanation:
3/5 = 6/10 (multiply by 2)
Answer:
108.04 grams
Step-by-step explanation: