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ad-work [718]
3 years ago
10

How to solve this equation?

Mathematics
2 answers:
uranmaximum [27]3 years ago
6 0

i think that the answer will be k/0.

im not quite sure about the answer so sorry if you get it wrong

i tried.

ivolga24 [154]3 years ago
4 0

Answer:

Step-by-step explanation:

you would divded 24 by 12 to get the answer because thats what u do

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A boat takes 4 hours to go 20 miles upstream.It can go 32 miles downstream in same time.Find the rate of the current and the rat
Mandarinka [93]
Recall your d = rt, distance = rate * time.

now, if the boat has a speed of say "b", and the current has a speed of say "c", when the boat is going upstream, is not really going "b" fast, is going " b - c " fast, because the current is eroding speed from it, going upwards.

And when the boat is going downstream, is not going "b" fast either, because the current is now adding to speed to it, so is really going " b + c " fast.

The time it took one way, is the same time it took back, 4 hours each way.

thus

\bf \begin{array}{lccclll}
&\stackrel{miles}{distance}&\stackrel{mph}{rate}&\stackrel{hours}{t}\\
&------&------&------\\
Upstream&20&b-c&4\\
Downstream&32&b+c&4
\end{array}
\\\\\\
\begin{cases}
20=4(b-c)\implies \frac{20}{4}=b-c\implies 5+c=\boxed{b}\\
32=4(b+c)\implies \frac{32}{4}=b+c\implies 8=b+c\\
--------------------\\
8=\left(\boxed{5+c}  \right)+c
\end{cases}
\\\\\\
8=5+2c\implies 3=2c\implies \cfrac{3}{2}=c\implies 1\frac{1}{2}=c

what's the speed of the boat?  well, 5 + c = b.
6 0
3 years ago
32m+56mp whats the distributive property
emmainna [20.7K]
32m = 8m · 4

56mp = 8m · 7p

32m + 56mp = 8m(4 + 7p)
4 0
3 years ago
PLEASE HELP ASAP <br> I need help finding the rate of change
Talja [164]
G(6)-g(2)/6-2
g(6) = 50
g(2) = 14
50-14/6-2
36/4
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3 years ago
A crane is rented at $1000 per day plus a charge per hour of use. The crane was used for 7 hours on a day, and the total charge
GrogVix [38]
The equation can be (3450-1000)<span>÷7=350.</span>
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3 years ago
What is y=7/4x+6 if the input was 53
Shkiper50 [21]

7/4(53) + 6
92.75 + 6

98.75
5 0
3 years ago
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