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andrezito [222]
2 years ago
7

:)))) Select the answer that correctly orders the set of numbers from least to greatest.

Mathematics
1 answer:
horsena [70]2 years ago
5 0
The answer is C) 0.03, 0.065, 1/8, 14%
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Someone please help me out here.
Natasha2012 [34]

Answer:

1) 3x²+8x

2) 3x²+2x+2

3) -3x²-2x-2

4) 9x³+12x²-2x-1

5) 3x²+5x+1/3x-1

8 0
3 years ago
Wilma can mow a lawn in 60 minutes. Rocky can mow the same lawn in 40 minutes. How long does it take for both Wilma and Rocky to
UNO [17]
<h3>Answer:  24 minutes</h3>

===================================================

Explanation:

Let's say the lawn is 120 square feet. I picked 120 as it is the LCM (lowest common multiple) of 60 and 40.

Since Wilma can mow the lawn in 60 minutes, her rate is 120/60 = 2 sq ft per minute. In other words, each minute means she gets 2 more square feet mowed. Rocky can do the full job on his own in 40 minutes, so his rate is 120/40 = 3 sq ft per minute.

Their combined rate, if they worked together (without slowing each other down), would be the sum of the two rates. So we get 2+3 = 5 sq ft per minute as the combined rate. The total time it would take for this 120 sq ft lawn is 120/5 = 24 minutes.

--------------------------

Another approach

Wilma takes 60 minutes to do the full job, so her rate is 1/60 of a lawn per minute. Rocky's rate is 1/40 of a lawn per minute. Their combined rate is

1/60 + 1/40 = 2/120 + 3/120 = 5/120 = 1/24 of a lawn per minute

x = number of minutes

(combined rate)*(time) = number of jobs done

(1/24)*x = 1

x = 1*24

x = 24 is the time it takes if they worked together without getting in each other's way.

Effectively, we are solving the equation

1/A + 1/B = 1/C

with

A = time it takes Wilma to do the job on her own

B = time it takes Rocky to do the job on his own

C = time it takes the two working together to get the job done

The equation above is equivalent to C*(1/A + 1/B) = 1 or (1/A + 1/B)*C = 1.

So basically you find the value of 1/A + 1/B, then find the reciprocal of this to get the value of C.

3 0
3 years ago
Solve for x in the equation C = 8.5x + 6y. Show all work.
GarryVolchara [31]
C = 8.5x + 6y

Rearrange the equation by making the side with x, be on the Left Hand Side (LHS)

8.5x + 6y = C

Subtract 6y from both sides of the equation

8.5x + 6y - 6y = C - 6y

8.5x = C - 6y

Divide both sides of the equation by 8.5

(8.5x/8.5) = (C - 6y)/8.5

x =  (C - 6y)/8.5

I hope this helped.
7 0
3 years ago
Given the graph of a degree 3 polynomial below, complete the table of values for either the x-value of a zero, or the multiplici
leva [86]

The roots or zeros of a polynomial are the points it crosses the x-axis.

The roots of the polynomial in order from least to greatest are -5, 0 and 5

From the graph (see attachment), we have the following highlights

  • <em>The graph cross the x-axis at x = -5</em>
  • <em>The graph cross the x-axis at x = 0</em>
  • <em>The graph cross the x-axis at x = 5</em>

The points at which the graph crosses the x-axis are the roots of the graph.

So, the roots are: -5, 5 and 5

Read more about the roots of a polynomial at:

brainly.com/question/7921963

8 0
2 years ago
Please answer this? tysvm!
Lapatulllka [165]

Answer:

so i think its x i hope this helps

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
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