X = 1/cos(30)
X = 1.154700538
X = 1.2 (nearest tenth)
Let's write a system of equations. We will use D for Derek's age and S for Sarah's age:
D = 4S
(D - 2) + (S - 2) = 36
We can simplify the second equation:
D + S - 4 = 36
D + S = 40
Now we can use substitution to plug 4S in for D in the second equation:
(4S) + S = 40
5S = 40
S = 8
Sarah is 8 years old.
Answer:7
Step-by-step explanation:
Answer:
36 crackers
Step-by-step explanation:
If he normally eats 8 crackers every weekday, he consumes about 40 crackers.
On the last day however, he dropped 4, so he only ate 4.
8 * 4 = 32
32+ 4
= 36
Answer:
H
Step-by-step explanation:
We see that the number decreases 4 times, 6 at a time.
However, it's decreasing, so, it would actually be -6 at a time.
The answer is 4 * -6, which is H.
Hope this helps!