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ruslelena [56]
3 years ago
10

Linear function help

Mathematics
1 answer:
marusya05 [52]3 years ago
4 0

y = 500-(t25)

y is the amount of water

500-(t25) subtracts 25 liters every hour from 500, due to it multiplying the 25

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The mean weight of females in a class is 60kg and that of the males is 72kg. If the mean
zimovet [89]

Answer:

1:2

Step-by-step explanation:

Let's say there are x males and y females in the class.

The sum of all male weights will be 72x, and the sum of all female weights will be 60y.

If we get a class mean weight, we have:

(72x + 60y) / (x+y) = 68

72x + 60y = 68x + 68y

4x = 8y

y / x = 4/8 = 1/2

So the ratio of females to males is the class is 1:2

5 0
3 years ago
Find the x-intercepts of the parabola with vertex (5,-12) and y-interdept (0,63). Write your answer in this form: (x1,y1), (x2,V
VLD [36.1K]

The x-intercepts of the parabola are (3, 0) and (7,0)

<h3>How to determine the x-intercept?</h3>

The given parameters are:

Vertex (h, k) = (5, -12)

Point (x, y) = (0, 63)

The equation of a parabola is:

y = a(x - h)^2 + k

Substitute (h, k) = (5, -12)

y = a(x - 5)^2 - 12

Substitute (x, y) = (0, 63)

63 = a(0 - 5)^2 - 12

Evaluate

63 = 25a - 12

Add 12 to both sides

25a = 75

Divide by 26

a = 3

Substitute a = 3 in y = a(x - 5)^2 - 12

y = 3(x - 5)^2 - 12

Set y to 0 to determine the x-intercepts

0 = 3(x - 5)^2 - 12

Add 12 to both sides

3(x - 5)^2 = 12

Divide by 3

(x - 5)^2 = 4

Take the square root of both sides

x - 5 = \pm 2

Add 5 to both sides

x = 5 \pm 2

Expand

x = (5 - 2, 5 + 2)

Evaluate

x = (3, 7)

Hence, the x-intercepts of the parabola are (3, 0) and (7,0)

Read more about parabola at:

brainly.com/question/21685473

#SPJ1

5 0
2 years ago
What is the smallest number that has 10 divisors?
BARSIC [14]

Answer: 48

48 is the smallest number with exactly 10 divisors.

4 0
3 years ago
Read 2 more answers
16 is divided by the sum of a number q and 1. The result is 4. What is the number?
GaryK [48]
16/(q+1)=4
16/(q+1)=4 > Mult. both sides by (q+1)
16=4q+4 > Subtract 4 from both sides.
12=4q > Div. both sides by 4
q=3

6 0
3 years ago
3(4)<br> Solve 3(x-9)=21
Bas_tet [7]

Answer:

X=16

Step-by-step explanation:

Solve 3(x-9)=21   IF X = 16

16-9 = 7

3X7= 21

7 0
3 years ago
Read 2 more answers
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