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sammy [17]
4 years ago
8

HELPPPPPPPPPPPPPPPPPPPPPPPPPP

Mathematics
1 answer:
eduard4 years ago
6 0
The answer would be: 
d. 0, $12.40, $24.79, $37.19, $49.58; The practical range of this function is 0≤f(g) ≤49.58

The number of gallons needed is the value of g variable, so you need to put the variable value into the equation. The calculation would be:
f(g)= 2.479g
f(0)= 2.479(0)=0
f(5)= 2.479(5)=12.395= 12.40
f(10)= 2.479(10)=24.79
f(15)= 2.479(15)=37.185= 37.19
f(20)= 2.479(20)=49.58

The range of the function would be more than(≥) 0 but less than(≤) 49.58. If you put it together, the sign would look like 0≤f(g)≤49.58
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A is what percent of b a= 2 ft b= 1 yd
dsp73

Answer:

66\frac{2}{3}\%

Step-by-step explanation:

Remember that

1\ yd=3\ ft

we have

a=2\ ft\\b=1\ yd=1(3)=3\ ft

In this problem

b represent the 100%

so

using proportion

Find out what percent of b represent a

Let

x -----> the percentage of b

\frac{3}{100}=\frac{2}{x}\\\\x=100(2)/3\\\\x=\frac{200}{3}\%

Convert to mixed number

\frac{200}{3}\%=\frac{198}{3}+\frac{2}{3}=66\frac{2}{3}\%

3 0
3 years ago
3.
ad-work [718]

Answer:

58

Step-by-step explanation:

2-2x-3y5

2-2(2)-3(-4)5

-2+60

58

6 0
1 year ago
The altitude a ( in feet) of a plane t minutes after lift off is given by a=3400t+600
Julli [10]

Answer:

  6 minutes

Step-by-step explanation:

'a' in the formula represents altitude in feet. You are told the altitude is 21000 feet, so put that into the formula:

   21000 = 3400t +600

You can solve this for t:

  20400 = 3400t . . . . . subtract 600 from both sides

  6 = t . . . . . . . . . . . . . . . divide both sides by 3400

The problem statement tells you that t represents minutes after lift off, so this solution means the altitude is 21000 feet 6 minutes after lift off.

The question is asking for the number of minutes after lift off that the plane reaches an altitude of 21000 feet, so this answers the question directly:

  The plane is at an altitude of 21000 feet 6 minutes after lift off.

4 0
3 years ago
Part B Which of these statements are true? Choose all that apply. . А More than 20% of girls and more than 20% of boys chose mat
kenny6666 [7]
Is there a sort of graph that I could look at and then I could tell, because I don’t just know this information off the top of my head.
4 0
3 years ago
Jasmine correctly answers 70% of total questions on her math test.She correctly answers 35 questions.How many total questions we
podryga [215]
1) How many % represent a question?
70% / 35
=2%

2)How many questions that Jasmine got wrong?
30% / 2%
=15

Total questions:
15 + 35
50 questions.
6 0
3 years ago
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