Answer:
7 years
Step-by-step explanation:
Given that:
Let Richard's age = x
Elder sister's age = 2x
Youngwr sister's age = x - 2
Product of sisters ages = 70
2x * (x - 2) = 70
2x² - 4x = 70
2x² - 4x - 70 = 0
x² - 2x - 35 = 0
x² - 7x + 5x - 35 = 0
x(x - 7) +5(x - 7) = 0
(x - 7) or (x + 5) = 0
x = 7 or x = - 5
X can't be negative
Hence, x = 7
Richard is 7 years
The answer is 5 .
3 3/4 / 3/4 = 5
Hope this helps
Answer:
3.3 gallons
Step-by-step explanation:
(2 3/4)/x = (3 1/3)/4
(11/4)/x = (10/3)/4 (cross multiplication)
(11/4)*(4/1)=44/4=11
11/(10/3) = ( 11/1 ) * (3/10) = 33/10 = 3.3 gallons
Answer: Degree is 5 and zero of polynomial is 2
Answer: It's already in it's simplest form.
* Hopefully this helps:) Mark me the brainliest:))!!!
