We want to solve 9a² = 16a for a.
Because the a is on both sides, a good strategy is to get all the a terms on one side and set it equal to zero. Then we apply the Zero Product Property (if the product is zero then so are its pieces and Factoring.
9a² = 16a
9a² - 16a = 0 <-----subtract 16a from both sides
a (9a - 16) = 0 <-----factor the common a on the left side
a = 0 OR 9a - 16 =0 <----apply Zero Product Property
Since a = 0 is already solved we work on the other equation.
9a - 16 = 0
9a = 16 <----------- add 16 to both sides
a = 16/9 <----------- divide both sides by 9
Thus a = 0 or a = 16/9
Answer:
their would be 19 marbles in each bag but the total left out the bag will be 28 which is explain below
731 ÷ 37= 19
19 × 37 = 703
703 - 731 = - 28
1. Set up the equation: 2.50C + 8.50D = 90 (C+D=90)
2. Solve for C and D: Number of cats=19 and the Number of dogs=5
Answer:
150 and -2 are integers
6.6 and -1/2 are rational numbers
-√3 is an irrational number
Step-by-step explanation:
There are 3 significant figures because there are 3 digits which aren't 0's
