Answer:
41.92 seconds
Step-by-step explanation:
Level 1 = X
Level 2 = X + 1.283
X = 20.341
Level 2 = 21.579
Level 1 + Level 2 = 21.579 + 20.341
Both levels = 41.92 seconds
Have a good day! ;)
Note: I didn't solve all of them, but hopefully this still helps.
4.
h*b = b*h because of the commutative property. for example if h= 3 and b = 5, 5*3 = 15 = 3*5
2.
a) 2x + 20
b) 5x + 5
c) 10x + 20
d) 72 + 36y
e) 64 + 72
f) 35y + 30
5.
a) 10x + 10y + 10
b) 12x + 20y + 4
c) 56x + 24y + 16
Goodluck with your schoolwork/homework!
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Apologies in advance for any errors or bad explanations.
Answer:
7
Step-by-step explanation:
Divide 7/8 by 1/4. (You divide the "supply" of raisins into 1/4 cup "parts".)
![\frac{7}{8} \div \frac{1}{4} = \frac{7}{8} \times \frac{4}{1} = \frac{28}{8} =\frac{7}{1} =7](https://tex.z-dn.net/?f=%5Cfrac%7B7%7D%7B8%7D%20%5Cdiv%20%5Cfrac%7B1%7D%7B4%7D%20%3D%20%5Cfrac%7B7%7D%7B8%7D%20%5Ctimes%20%5Cfrac%7B4%7D%7B1%7D%20%3D%20%5Cfrac%7B28%7D%7B8%7D%20%3D%5Cfrac%7B7%7D%7B1%7D%20%3D7)
Multiply 7/8 by the reciprocal of 1/4 ("flip" the 1/4).
The result is 28/8, which can be simplified ("reduced") to 7.
Answer:
3800
Step-by-step explanation:
Variables:
O - Original cost
N - New cost
c - change factor
Step 1:
Recognize that if something decreases by 19%, it is worth 19% <em>less</em>
This means that the new price, fractionally, is 100% - 19% = 81%
So we can use c as 0.81 (81/100)
Step 2:
Write an equation to represent what is happening
N = O * c
Step 3:
Sub in what we know
3078 = O * 0.81
Step 4:
Rearange and solve
O = 3078 / 0.81 = 3800
It would affect the mean the most