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Nitella [24]
3 years ago
5

If twenty three is equal to x minus nine and x is equal to four tune what is the answer

Mathematics
1 answer:
artcher [175]3 years ago
4 0
23 = x - 9
x= for tune

Now plug x= "for tune" into equation 23 = x - 9.
23 = "for tune" - 9
for tune = -9 - 23 = -32
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An adult elephant drinks about 225 liters of water each day. Is the number of days the water supply lasts proportional to the nu
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1 day = 225 liters
2 days = 450 liters

I don't think it is proportional..

Proportional is like..
1 day = 12 bags of rice
2 days = 11 bags of rice
3 days = 10 bags of rice

Thanks.
8 0
2 years ago
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Andrea's dad is 57 kilograms heavier than Andrea. Andrea weighs 34 kilograms. how much does Andrea's dad weigh?
lys-0071 [83]
Too solve this, you just do 57 + 34 which is 91.
6 0
2 years ago
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Mr. Gallagher's science class goes bird watching. The picture graph below shows the number of birds the class observes. A) How m
Liono4ka [1.6K]
A)
Monday and Tuesday: 8*6=48
Thursday and Friday: 10*6=60
60-48=12
The answer is 12 more

B)
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4 0
2 years ago
Find the volume of each cone.
SVEN [57.7K]

Answer:

1. V={π(3^2)*9 in^3}/3=84.82 in^3

2. V= {π(7^2)*11 in^3}/3=564.44 in^3

3. V= {π(15^2)*20 in^3}/3=4,712.39 yd^3

Step-by-step explanation:

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5 0
2 years ago
During a tunnel construction project, engineers used explosives to excavate partway into a mountain. Because of time constraints
AnnyKZ [126]

The given data can be tabulated as:

number of days,x                            length of tunnel (ft), y

0                                                                              225

5                                                                              350

20                                                                           725

30                                                                           975

55                                                                           1,600

 

To check if the growth is linear, the slope at points (0, 225) and (5, 350), and (0, 225) and (20, 725) should be equal. The formula for slope is:

m = (y2 – y1) / (x2 – x1)

 

Finding for slope (0, 225) and (5, 350):

m = (350 – 225) / (5 – 0) = 25

 

Finding for slope (0, 225) and (20, 725):

m = (725 – 225) / (20 – 0) = 25

 

Therefore the equation is linear in the form of:

y = mx + b

where b is the value of y at x = 0, so b = 225

 

The complete equation is:

y = 25x + 225

 

At x = 86 days

y = 25(86) + 225

y = 2,375 ft

 

Therefore the length of the completed tunnel is 2,375 feet.

5 0
3 years ago
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