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RoseWind [281]
2 years ago
6

Ann can swim 20 laps in 8 min. how long will it take to swim 9 laps? show your equations(s).

Mathematics
1 answer:
Volgvan2 years ago
6 0
Take 20 laps divide by 8 then take the number times 9 laps
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A bag has 4 red marbles,5 blue, 3 green and 1 yellow. what is the probability of pulling a red marble.
Hitman42 [59]

Answer:

4/13 is the answer

total = 4+3+5+1= 13

let a be the event of getting red marbles= total is 4

probability=4/13

6 0
1 year ago
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The table shows a linear function. Which equation represents the function?
4vir4ik [10]

Question is not complete and so I have attached the complete question.

Answer:

C: f(x) = -½x + 4

Step-by-step explanation:

Using slope formula between 2 points, we know that;

slope; m = (y2 - y1)/(x2 - x1)

Let's consider 2 points from the table;

(0, 4) and (-4, 6)

Thus;

m = (6 - 4)/(-4 - 0)

m = 2/-4

m = -½

Now using slope intercept form equation which is y - y1 = m(x - x1), we can find the equation of the function by picking on point say (0, 4).

Thus;

y - 4 = -½(x - 0)

y - 4 = -½x

y = -½x + 4

Thus;

f(x) = -½x + 4

8 0
2 years ago
Solve for y.<br><br> −140=18+4(5y−2)
vagabundo [1.1K]

For this case we have the following equation:

-140 = 18 + 4 (5y-2)

From here, we must clear the value of y.

For this, we follow the following steps:

1) Distributive property:

-140 = 18 + 20y-8

2) Variable terms on one side of the equation and constant terms on the other side of the equation:

20y = -140 - 18 + 8

3) Algebraically add the constant terms:

20y = -150

4) Pass the number 20 to divide:

y = -\frac{150}{20}\\y = -7.5

Answer:

The value of y is given by:

y = -7.5

3 0
3 years ago
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Can someone please help me with math.
vovangra [49]

Answer:

The answer would be B

Step-by-step explanation:

From 1 second to 3 seconds Denise had stopped

We can tell that this is true because looking at the graph we can see that from 1 to 3 seconds the distance stayed the same which indicates that Denise was not walking

6 0
3 years ago
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Generate a frequency table for the following data: 3, 12, 25, 2, 3, 6, 17, 17, 15, 13, 20, 12, 21, 18, 19
Schach [20]

Answer:

D: 1

Step-by-step explanation:

There's only one number there between 6-10.

5 0
2 years ago
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