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MakcuM [25]
3 years ago
6

Can someone please help?

Mathematics
2 answers:
lianna [129]3 years ago
3 0
It would be 7 x 28 x 1/2 I think 
riadik2000 [5.3K]3 years ago
3 0
 I think the answer might be 56.
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I need help plz plz plz plz plz plz plz plz plz plz
N76 [4]

Answer:

Variable: t

Constant: 18

Step-by-step explanation:

A constant is the number that is known, the variable is unknown. A variable is usually denoted with a letter and a constant  with digits. I hope this helps  :0)

6 0
3 years ago
A 450-gallon tank full of water is draining at a rate of 20 gallons per minute.
Stels [109]

Answer:

The answer is below

Step-by-step explanation:

A function show the relationship between an independent variable and a dependent variable. The independent variable (input) does not depend on other variables while the dependent variable (output) depend on other variables.

In this question, amount of water in tank is dependent variable and the time taken is the independent variable. Let y represent amount of water in tank and x represent the time it has been draining. Therefore:

a) This can be represented by the equation:

y = 450 -  20x

At 7 minutes (x = 7)

y = 450 - 20(7)

y = 310 gallons

b) For 200 gallons (y = 200), the time taken is:

200 = 450 - 20x

200 - 450 = -20x

-20x = -250

x = -250/-20

x = 12.5 minutes

c) y = 450 - 20x

d) The graph was plotted using geogebra onling graphing calculator.

e) When the tank is empty, y = 0, hence

0 = 450 - 20x

20x = 450

x = 450 / 20

x = 22.5 minutes

6 0
3 years ago
OMG HELP ME<br><br><br> find the angles then list them from least to greatest
7nadin3 [17]
U need to add them all together
4 0
3 years ago
Read 2 more answers
Cos 55 degrees = sin x
malfutka [58]
Sun is 35. Since=cos(90-x)
4 0
3 years ago
Daniel and Audrey are reading the same book. At the beginning of the month, Daniel was on page 49 and Audrey was on page 22. Dan
dolphi86 [110]

Answer:

202

Step-by-step explanation:

So it has to end in 2 because 20t+22 will always be a 2.

day1:

17x1+49=66

no 2

day2:

17x2+49=83

odd

day3:

D=100

no 2

day4:

odd

day5:

D=134

no 2

etc

keep adding 17 to D until you get one that ends in 2

D=202

A=202

6 0
3 years ago
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