Answer:
C. h + k (t - 1)
Step-by-step explanation:
<em>If we use an example, you can plug in the numbers and test out which equation works. Say the first hours costs $10 and each hour after that is an additional $5. If someone rents a jet ski for 4 hours, how much did it cost?</em>
The first hour = $10
The 3 additional hours (totaled) = $15
Cost = $25
<em />
<em>So now that we know the cost, we can plug in our numbers to these equations to find which one comes out with $25.</em>
h = 10
k = 5
t = 4
<u>A</u>. 10 + 4 + 5 = <u>19</u>
<u>B</u>. 10 + (4 · 5) = 10 + 20 = <u>30</u>
<u>C</u>. 10 + 5 (4 - 1) = 10 + 5 (3) = 10 + 15 = <u>25</u>
<u>D</u>. 10 + 5 (4 + 1) = 10 + 5 (5) = 10 + 25 = <u>35</u>
<u>E</u>. 10 + (4/5 - 1) = 10 + (-0.2) = <u>9.8</u>
<em>C is the only problem that comes out as $25, therefore it must be the correct answer.</em>
Answer:
37
Step-by-step explanation:
37
Let the base of the ladder be x ft and the extension be y ft.
"when fully extended, a ladder is 28 feet in length."
means: x+y=28
"<span>the extension is 4 feet shorter than the base</span>"
means: y=x-4, that is x-y = 4, (taking y to the side of x, and -4 to the other side of x and y)
thus, we have the system of equations:
1) x+y= 28
2) x-y=4
adding the 2 equations, we have:
(x+y)+(x-y)=28+4
2x=32
x=32/2=16
x+y=28, so 16+y=28, thus y=12
Answer: Base: 16, Extension 12
.05
You just move the decimal place back, twice.
Answer is: 62.4m^3
The volume of a pyramid is 1/3, where B is the
area of the base and h is the height of the pyramid.
The base of this pyramid is a rectangle with a length
of 8 meters and a width of 4.5 meters. The height of
the pyramid is 5.2 meters.
