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bearhunter [10]
2 years ago
15

Can someone please help me with this

Mathematics
1 answer:
JulsSmile [24]2 years ago
6 0

Answer:

x=155

Step-by-step explanation:

(2x-120)+10=180

or,2x-130=180

or,2x=180+130

or,2x=310

or,x=310÷2

x=155

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Help me and i will give you brainliest and i will give you 100 points.
beks73 [17]

Answer:

  • $18.64

Step-by-step explanation:

<u>Total amount to be paid is the sum of 4 bills:</u>

  • 21.47 + 14.43 + 13.27 + 25.37 = $74.54

<u>Divide the total by the number of people:</u>

  • 74.54/4 = 18.635 = $18.64 rounded to the nearest cent

If the total to be paid equally, then each person has to pay $18.64

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3 years ago
Under a microscope, ms. kapinski studies a culture with bacteria. as the number of hours progresses, ms. kapinski sees that the
velikii [3]

Answer:

Study 1 Answers:

1) 0.76 represents the multiplier of the bacteria, in this case it is decreasing by 24% because the formula for exponential decay is 1 - r.

2) 1290 represents the initial value, or before the study began.

Study 2 Answers:

1) 1180 is the initial value, or before the study began.

2) Study 1 started with more bacteria

3) Study 1 is experiencing exponential decay, while study 2 is experiencing exponential growth

Step-by-step explanation:

Exponential functions are in the form y=a(b)^x, where a is the initial value, b is the multiplier, and x represents inputs, such as hours after a bacteria study.

Any multiplier above 1.00 is experiencing exponential growth, meaning it grows gradually over time, and any multiplier below 1.00 is experiencing exponential decay, meaning it decreases in population over time.

5 0
3 years ago
Solve for x: -3x - 3 = -3(x + 1)
bogdanovich [222]

Answer: it would be all real numbers because the equation ends up at 0=0

7 0
3 years ago
A long distance phone company charges $1.01 for the first 25 minutes of a call, then $0.09 for each additional minute. A call co
Shkiper50 [21]
You will have to form the equation:

1.01+.09x=9.56       Solve for x. Start buy subtracting 1.01 from both sides.
.09x=8.55               Divide both sides by .09
x=95                      The call was 95 additional minutes. So...
25+95=120           120 minutes in total. Check your answer by substituting x...

1.01+.09(95)=9.56
1.01+8.55=9.56
9.56=9.56

I hope this helps!
4 0
4 years ago
A pentagonal prism is cut by a plane perpendicular to the base. What is the shape of the cross section that is formed?
rewona [7]

Answer: A rectangle

Note: I am a bit confused between A), B), and C), but the answer I am going for is C).

Step-by-step explanation:

By definition, a cross-section is the intersection of a plane and a body of three dimensions.

A pentagonal prism has a pentagon as its base. and its lateral faces are rectangles.

If a plane perpendicular cuts the pentagonal prism to the base, this means that the plane is parallel to lateral faces, then, the shape of the cross-section that is formed is also a rectangle.

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