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Musya8 [376]
3 years ago
5

Solve the equation 55=7-6y

Mathematics
2 answers:
sweet [91]3 years ago
4 0

Answer:

55-7=48

48÷-6=-8

y=-8

......

Lelechka [254]3 years ago
4 0

Answer:

-8 = y

Step-by-step explanation:

55=7-6y

Subtract 7 from each side

55-7=7-6y-7

48 = -6y

Divide each side by -6

48/-6 = -6y/-6

-8 = y

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Tyler and Pearl went on a 20km bike ride that lasted for 3 hours. Because of steep hills or the trail, they walked for most of t
noname [10]

Answer: 1 hour


Step-by-step explanation:

Let the distance they walked be d_1 in time t_1 and the distance they walked be d_2 in time t_2 ,then

Walking speed=\frac{d_1}{t_1}=4

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Riding speed=\frac{d_2}{t_2}=12

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Also the total time taken=3 hours

∴t_1+t_2=3\\\Rightarrow\ t_2=3-t_1...(1)

Since the total distance= 20 km

∴d_1+d_2=20\\\Rightarrow4t_1+12t_2=20\\\Rightarrow4t_1+12(3-t_1)=20..............[\text{from (1)}]\\\Rightarrow4t_1+36-12t_1=20\\\Rightarrow-8t_1=-8\\\Rightarrow\ t_1=1

Thus, the they spent 1 hour time in walking.

7 0
3 years ago
Find the slope of the following graph<br><br> a) 1/2<br> b) 2 <br> c) -2<br> d) -1/2
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Answer:

c. -2

Step-by-step explanation:

because the linear line goes down we know it is negative

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Step-by-step explanation:

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3 years ago
Read 2 more answers
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