Explanatory research is research conducted in order to explain any behaviour
n, n + 2, n + 4, n + 6 - four consecutive odd integers
3 times the largest decreased by 19 is twice the second integer
3(n + 6) - 19 = 2(n + 2) <em>use distributive property</em>
(3)(n) + (3)(6) - 19 = (2)(n) + (2)(2)
3n + 18 - 19 = 2n + 4
3n - 1 = 2n + 4 <em>add 1 to both sides</em>
3n = 2n + 5 <em>subtract 2n from both sides</em>
n = 5
n + 2 = 5 + 2 = 7
n + 4 = 5 + 4 = 9
n + 6 = 5 + 6 = 11
<h3>Answer: 5, 7, 9, 11</h3>
Answer:
80 hours
Step-by-step explanation:
let d represent doug, let l represent laura
first, set up a system of equations representing the problem:
since doug spent 10 less than twice the hours laura did, and we know that the total amount of hours they spent together is 230:
l=2d+10
d+l=230
then solve:
*first i rearranged the equations so i can solve this system of equations using elimination method*
l-2d=10
l+d=230
*subtract*
3d=240
d=80
so, doug spent 80 hours in the lab
Answer:
ans: 8
Step-by-step explanation:
t3×2 mean see the term in 3rd row and second column,
You would have to use the equation for incline