Answer:
Option B is correct
Step-by-step explanation:
Doug is x years old, so Byron is x+3 years old. The product of their ages would then be x times x+3:
x(x+3) = 40
x2 + 3x = 40
x2 + 3x + 40 = 0
Now, factor the equation:
(x+8)(x-5) = 0
Then, solve for both values of x:
x+8 = 0
x = -8
x-5 = 0
x = 5
As no one can have a negative age, we simply disregard x=-8 as invalid. Therefore, Doug is 5 years old & Byron must be 5+3 - or 8 years old.
<h3>Hope it is helpful...</h3>
Ricks sporting good:
100% - 20% = 80% so the basketball is on sale for 80% of the original price so 24.95 x 0.80 = 19.96 ( sale price)
Sports Expert:
100% - 25% = 75%
so the basketball is on sale for 75% of the original price 25.80 x 0.75 = 19.35 (sale price)
19.35 is less than 19.96 so the better deal is from Sports Expert
Answer:
25, and 8
Step-by-step explanation:
5 x 5 = 25
4 x 2 = 8
so let's notice, the volume of the rectangular prism is really 3 times as much of that of a pyramid with the same Base and Height.
so if the pyramid has a volume of 150, the prism will have volume of 3*150.
Answer:
-4
Step-by-step explanation:
first, you minus 3 by 3 until you get zero then you minus 4 from zero which gets you -4 degrees.