Answer:
If Cora runs 1/2 mile per week and x is the number of weeks, then she will run 5+1/2x. Then determine how many weeks are in two and a half months (depends on which month it is as there are less weeks in February than in January!) but we could estimate 6.
For Hana, you will have 3+ 3/4 x
Step-by-step explanation:
First equation is y=5+1/2 x and then plug 6 in for x to solve for y. the second equation is y=3+3/4x and plug in 6.
Answer:
0.1296
Step-by-step explanation:
Use the normpdf function available on basic calculators:
normpdf(16,15,2.9) = 0.1296
This is the z-score representing 16 minutes. Note that 16 is just one point above 15, so this small positive z-score makes sense.
Answer:
1)8
2)22
3)23
4)3
5)14
6)40
7)59
8)41
9)32
10)4
Step-by-step explanation:
Answer:
15 ft.
Step-by-step explanation:
I will assume that either both objects are standing straight. We can use similar triangles.
We can see that the side 8 is similar to the side 20, since they are both shadows. Therefore, we can set up an equation:
we can cross multiply and get:
8x=120
solve for x:
x=15
Therefore, the lamppost must be 15 feet tall (unless it fell down but we won't talk about that)
