-9a + 139 = -1a + 59 what is a?

Answers

Answer 1

Answer: -9a + 139 = -1a + 59

-9a + a= 59 - 139

-8a = - 80

a = 10

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Halfway through a bus route, 23 students have been dropped off and 48 students remain on the bus. Write an equation to determine whether there are 61 or 71 students on the bus at the begginning of the route.

Answers

Answer: The required equation is

$x=23+48\n\Rightarrow\ x=71$

Thus, there are 71 students on the bus at the beginning of the route.

Step-by-step explanation:

Given: The number of students dropped off = $23$

The number of students remain on the bus = $48$

Let 'x' be the total number of students in the bus then we get the equation as

$x=23+48$

On adding 23 to 48, we get 71

Hence, $x=71$

Therefore, There are 71 students on the bus at the beginning of the route.

48+23=71. So seventy one students were on the bus then 23 were dropped off leaving 48 remaining

The figure shows a barn that mr fowler is building for his fame

Answers

where is the figure KingBroski?

What is 2x3xnxn=54 what is n?

Answers

It would be
2x3xnxn
N has a 1 in front of it it's just not shown
So
2x3x1nx1n then you'd at as much as possible
5x2n

$2x^3*n*n=54$

$\ Use \ Product \ Rule$ $x^ax^b=x^a^+^b$

$2x^3n^2=54$

$x^3n^2= (54)/(2)$ $\ Divide \ both \ sides \ by \ 2$

$x^3n^2=27$

$n^2= (27)/(x^3)$ $\ Divide \ both \ sides \ by \ x^3$

$n=+ \sqrt{ (27)/(x^3)}$ $\ Take \ the \ square \ root \ of \ both \ sides$

______________________________________________________

$If \ you \ mean \ 2x*3xnxn=54 . \ Lets \ Solve \ for \ n$

$2x*3xnxn=54$

$6x^3n^2=54$

$x^3n^2= (54)/(6)$ $\ Divide \ both \ sides \ by \ 6$

$x^3n^2=9$

$n^2= (9)/(x^3)$ $\ Divide \ both \ sides \ by \ x^3$

$n=+ \sqrt{ (9)/(x^3) }$ $\ Take \ the \ square \ root \ of \ both \ sides$

James estimated the total cost of groceries to be $50. The actual cost of the groceries is $65. What is the percent error? Round your answer to the nearest whole percent. Enter your answer in the box.

Answers

Percent error is the difference in percent between the estimated cost and the actual cost. So in this case the percent difference between 50 and 65. to find this we need to find out what percent the estimated cost is out of the actual cost, So what percent is 50 out of 65? We can find this by doing the equation 50 / 65, which is 0.76923076923.

This rounds to 0.77, which is 77%

So this means 77% is 50, and 100% is 65. So what is the difference? 100 - 77 = 23. So 23% is your answer.

Answer: 23% error.

Step-by-step explanation:

Percentage error = error in cost/actual cost X 100

Error = $65 - $50

= $15

Therefore, percent error

= 15/65 x 100

= 15 x 100/65

= 1500/65

= 23.07

Therefore, to the nearest whole %

= 23% error.

Do 2(x, y) → (3,5).
The point (x,y) is

Answers

Answer:

(1.5, 2.5)

Step-by-step explanation:

(x,y) is being multiplied by 2 to get (3,5). We need to divide it by 2 to find x and y.

3/2= 1.5

5/2=2.5

Thus, the answer is (1.5, 2.5). Hope this helped!

What is the scientific notation of 6,780?

Answers

6.78*10^3 (10 to the third power)

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