Answer:
Step-by-step explanation:
1 = 3[5] + b
15
Parallel lines have SIMILAR <em>RATE OF CHANGES</em> [<em>SLOPES</em>], so 3 remains the way it is.
I am joyous to assist you anytime.
Step-by-step explanation:
(b) If 
then
Note that 
cancel out so we get
Solving for 
we get
(c) I'm not sure what the problem is asking for but here goes. As r doubles, 
becomes
Answer:
22
Step-by-step explanation:
The number of male friends : 200 ÷100 × 45 = 90
The number of female friends : 200 - 90 = 110
Joan likes 20% of her female friends and there are total of 110 female friends
20% 110 would be➡ 110 ÷ 100 × 20 = 22
Answer:
Part 1) An equation is 15.7=3p+1
Part 2) The approximate population in 1950 was 4.9 million people
Step-by-step explanation:
Let
p -----> the population in 1950 in million people
y -----> the population in 2003 in million people
we know that
y=3p+1 -----> equation A
y=15.7 ----> equation B
substitute equation B in equation A and solve for x
15.7=3p+1
3p=15.7-1
3p=14.7
p=4.9
therefore
The approximate population in 1950 was 4.9 million people
Answer: 6.125 hour
Explanation:
Train 1 ===> 1 hour = 90 miles
Train 2 ===> 1 hour = 120 miles
1 hour = 90 + 120 = 210 miles apart
210 miles = 1 hour
735 miles = 735 ÷ 210 = 6.125 hours
