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Tju [1.3M]
3 years ago
11

Y-intercept:8x +9y=40

Mathematics
2 answers:
Kobotan [32]3 years ago
7 0

Answer:

y-intercept or "b"= 40/9 or 4.4444

Step-by-step explanation:

To do this, we use the formula y = mx +b

m= slope

b = y intercept

The equation we are given is 8x +9y = 40.

First, we need to subtract 8x from both sides to isolate the y variable to one side:

8x +9y = 40

9y = -8x + 40

Now, we need to divide both sides by 9, to solve for "y". This will give use the format of y = mx +b.

9y = -8x +40

y = -8/9x + 40/9

Because 40/9 cannot be reduced (besides 4.44), it will be our "b" or y intercept.

y-intercept = 40/9

I hope this helps!

-TheBusinessMan

Leto [7]3 years ago
5 0

Answer:

40/9

Step-by-step explanation:

9y = -8x + 40

y = -8/9x + 40/9

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Monica watch every day for exercise at a rate of 1 km every 20 minutes suppose medical walk in 1 km every 15 minutes how many me
Serga [27]

Answer:

Monica will walk a total of 3km in 60 minutes given that she walked 1km in 20 minutes

Step-by-step explanation:

The correct question is given below;

Monica walked every day for exercise at a rate of 1 kilometer every 20 minutes. At this rate, how many meters can Monica walk in 1 hour? EXPLAIN how you found your answer

solution;

Now in this question, given the number of kilometers Monica walks in 20 minutes, we are now told to find the number of kilometers she will walk in 60 minutes.

Now to get this, the easiest way to this is to use a cross multiplication as follows;

1km = 20 minutes

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Kindly remember/ recall that in an hour we have 60 minutes so it is necessary to make the conversion to the unit to achieve consistency. You might want to convert 20 minutes to hours too , but it is better to have it in minutes

Now let’s make the cross multiplication;

1 km * 60 minutes = x km * 20 minutes

xkm = (1km * 60 minutes)/20 minutes

xkm = 60 km minutes/20 minutes

xkm = 3km

6 0
4 years ago
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Phantasy [73]

Answer:

(6x-1)(3x-2)

Step-by-step explanation:

18x²-15x+2 = 18x²-12x-3x+2= 6x(3x-2)-1(3x-2)=(6x-1)(3x-2)

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3 years ago
2. (-5+ 6n to the 3rd power) + (1- 2n to the 2nd power)
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I think it would -4 + 6n to the power of 3 - 2n to the power of 2. I could be wrong. If so, you can report it as an error or something. 
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4 years ago
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antiseptic1488 [7]

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Step-by-step explanation:

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8 0
3 years ago
Read 2 more answers
I need help asap plsss
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