1km = 1000m
1hr = 3600sec
Do proportions:
1km / 1000m = 15km / x
15000m = x
1hr = 3600sec
15000/3600 = 4.2m per second
Choice 4
Well i dont think that 20 hundredths is equal to 2 thousands
Answer:
1. -8+3x
2. 51x-2+4x2 (squared)
3. 66x +324
4. 6x+2
5. 13 +13x
Step-by-step explanation:
I don't think I really understand the question but I tried to simplify the equations
Answer:
Mother: 40 years old
Rakhi: 15 years old
Step-by-step explanation:
Solution :
Let present age of Rakhi = x years
Present age of Mother = 4x
5 years later
Age of Rakhi =x+5
Ag of Mother =4x+5
Given 4x+5=3(x+5)
4x−3x=15−5
⇒x=10
Mother's age =4x=40 years
Plug 10 in for x to find Rakhis age
Put the x where the y is and the y where the x is
X=-3(y+4)
Solve for y
X=-3y-12
Add 12 to both sides
X+12=-3y
Divide both sides by -3
X/-3+ 12=y
