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zimovet [89]
3 years ago
12

when draining her hot tub, the height of the water in Brittany's hot tub decreases at a rate of 2 inches per minute. After 9 min

utes there are 11 inches of water in the tub. Assume that the height is decreasing at a constant rate. After how many minutes will the tub be empty.
Mathematics
1 answer:
Alla [95]3 years ago
8 0

h-11=-2(t-9)

h=-2t+18+11

h=-2t+29

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HELP ASAP!! IM FAILING AND I TRANSFER IN A WEEK. IDK HOW TO DO THIS:
suter [353]
X = W
y = L

<span>1. Write a function that could be used to find the garden’s length y in feet,
given its width x in feet. y =
</span>
A = x * y
20 = x * y
y = 20/x

<span>2. What happens to the length of the 20-square-foot garden as its width
gets closer and closer to zero feet?
</span>if W = 0 means x = 0, then Area is equal 0. You have <span>a straight length</span>

8 0
3 years ago
What is the slope of the line with the equation 8x + 3y = 9?
Sidana [21]
8x+3y=9
-8x. -8x
3y = -8x+9
3y/3 = (-8x+9)/3
y = -8/3x +3
so, slope is -8/3
6 0
3 years ago
Ted practices two types of swimming styles for a total of 50 minutes every day. he spends 20 minutes more practicing the breast
cluponka [151]

Answer:

see below

Step-by-step explanation:

butterfly = x minutes

breast = y minutes

total is 50 minutes

breast stroke = butterfly +20

Part A

x+y = 50

y = x+20

Part B

Substitute the second equation into the first

x+ (x+20) = 50

2x+20 = 50

2x+20-20 = 50-20

2x = 30

2x/2 = 30/2

x = 15

y = x+20

y = 20+15

y = 35 minutes

35 minutes on the breast stroke

Part C

45 minutes on the butterfly is not reasonable

We only have a total of 50 minutes

50-45 = 5

But he spend more time on the breast stroke ( 20 minutes more), but if he spend 45 minutes on the butterfly, he would have to spend less on the breast stroke.

4 0
3 years ago
2x − 5y = 16 <br>3x + 2y = 5 <br>can you also explain how you did it. Thanks :)
Reptile [31]

Answer:

x=3

y=-2

Step-by-step explanation:

2x - 5y = 16

3x + 2y = 5

Solve for x in the first equation.

2x - 5y = 16

2x = 16 + 5y

x = (16 + 5y)/2

x = 8 + 5/2y

Put x as 8 + 5/2y in the second equation and solve for y.

3(8+5/2y) + 2y = 5

24+15/2y + 2y = 5

24 + 19/2y = 5

19/2y = 5-24

19/2y = -19

y = -2

Put y as -2 in the first equation and solve for x.

2x - 5(-2) = 16

2x +10 = 16

2x = 16-10

2x = 6

x = 3

6 0
3 years ago
Read 2 more answers
Using appropriate properties find: <br> 6/5 × -5/7 -3/4 -5/7 × 4/5​
VARVARA [1.3K]

Answer:

1 and 4/35

Step-by-step explanation:

Use distribution property to solve:

6/5 × -5/7 -3/4 -5/7 × 4/5​ = -5/7 ( 6/5 - 3/4 ) x 4/5 = -5/7 ( 24/20 - 15/20 ) x 4/5 = -5/7 (-39/20) x 4/5 = 780 / 700 = 1 4/35

4 0
3 years ago
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