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Otrada [13]
2 years ago
13

I need help with this!!​

Mathematics
2 answers:
Aleksandr [31]2 years ago
5 0

Answer:

i think c

Step-by-step explanation:

hope it helps :)

kozerog [31]2 years ago
5 0
The question is really asking what the slope (m) of the line is. Here’s the answer:

Slope= the variable m

m=rise/run; m=change in y/change in x

We need to find the rate of how much the taxi driver charges per minute.

Therefore:

We need to pick a precise point on the line ( a precise point is a point with whole number x and y coordinates; no decimals or fractions).

We see that the point (6, 9) is precise.

A rate is a ratio in the form of a fraction that shows the relationship of change between two quantities: a/b.

So, the taxi costs 9 dollars / 6 minutes.

9/6 simplifies 2/3.

And thus, the taxi charges 2 dollars per 3 minutes

So, the answer is 9/6, which can be simplified to the furthest possibility, making it a unit rate.

Answer: 9/6



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If a bacteria population starts with 80 bacteria and doubles every four hours, then the number of bacteria after t hours is n =
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Answer:

Step-by-step explanation:

given that a bacteria population starts with 80 bacteria and doubles every four hours,

The function representing the number of bacteria after t hours

= n=f(t) = 80*2^{\frac{t}{4} }

We are to find the inverse of the function

i.e. we must make t = g(n) where g is a function of n.

Take log on both sides.

ln n =ln80+\frac{t}{4} ln 2\\\frac{t}{4} =\frac{ln\frac{n}{80} }{ln 2} \\t = 4\frac{ln\frac{n}{80} }{ln 2}

this is the inverse function.

8 0
3 years ago
Robert buys 4 pounds of cauliflower at $0.85 a pound. He also buys 4 pounds of brussels sprouts. If he spends $6.40 on the veget
postnew [5]
$0.85 * 4 = $3.40

$6.40 - $3.40 = $300

Brussel sprouts per pound = $300 / 4
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5 0
3 years ago
Read 2 more answers
For what value of the constant c does the above equation have x = 2 as the only solution?
Sladkaya [172]

the \: answer \: is \:  - 41
5 0
2 years ago
PLEASE HELP!!<br><br> what is the explicit formula for this sequence -7, -4, -1, 2, 5
trasher [3.6K]

Answer:

The explicit formula for the given expression is a_n=-10+3n.

Step-by-step explanation:

The given sequence is

-7, -4, -1, 2, 5

The difference between two consecutive terms is same, therefore the given sequence is an arithmetic sequence.

The first term of the given AP is -7 and the common difference is

-4-(-7)=-4+7=3

The explicit formula for an AP is

a_n=a+(n-1)d

Where, a is first term, d is common difference and n is number of terms.

Substitute a=-7 and d=3 in the above equation.

a_n=-7+(n-1)3

a_n=-7+3n-3

a_n=-10+3n

Therefore the explicit formula for the given expression is a_n=-10+3n.

6 0
3 years ago
A truck driver drove 120 miles in 1 3/4 hours. What is the speed of the truck in miles per hour? PLEASE HELP
Assoli18 [71]
<span>Turn 1 3/4 into a decimal number: 1.75
So, 120 miles in 1.75 hours, but we want to know miles in *one* hour. Divide both numbers by 1.75. 120/1.75 miles in 1.75/1.75 hour = 120/1.75 miles in 1 hour. 120/1.75 is 68.57 miles in one hour, so 68.57 mph.</span>
4 0
3 years ago
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