Mathematics High School

It takes Bobby 12 hours longer to build a robot than it takes Alex. Together, they can build the Robot in 8 hours. How long does it take Bobby to build the robot by himself?

Answers

Answer 1

Answer:

24 hours

Step-by-step explanation:

The computation of the number of hours taken by Bobby to build the robot by himself is shown below:

Given that

Bobby could take 12 hours

Together they could build in 8 hours

So based on the above information

the number of hours taken by Bobby to build the robot by himself is

Let us assume the above line be x

So,

[tex]\frac{1}{8}-\frac{1}{12} = \frac{1}{x} \\\\\frac{6 - 4}{48} = \frac{1}{x} \\\\\frac{2}{48} = \frac{1}{x} \\\\x = \frac{48}{2}[/tex]

x = 24 hours

Related Questions

Ryan bought a bike for $47,000 in the year 2002. Its value depreciates by 2% per year. What is the value
of the bike in 2006?

Answers

Answer:

$43351.30

Step-by-step explanation:

please help convert the improper fractions to mixed numbers ​

Answers

Answer:

1. 1 1/4

2. 2 1/2

3. 2 2/5

4. 1 1/5

5. 4 1/3

The dot plot shows the ages of quiz show contestants. pg617069 Suppose a new data value, 30, is included in the dot plot. Which statement describes the effect on the median? A The median would increase. B The median would equal the mean. C The median would stay the same. D The median would decrease.

Answers

Answer:

Step-by-step explanation:

A

Answer:

The median would stay the same.

Step-by-step explanation:

12,46,32,18,26,41,46 what is the mode?

Answers

Answer:

The Mode would be 46

Step-by-step explanation: Put the number in order from least to greatest. Find the number that repeats. The number that repeats the most is 46.

b) Calculate the reciprocal of -0,06, correct to 1 decimal place

Answers

Answer :-

-0 = 006 = -06Hope it helps !

help me pls T^T this is due today

Answers

Answer:

8.

a. 6x + 1.6 = 58
-1.6 -1.6

6x = 56.4


b. 6x = 56.4

6x/6 = 56.4/6

x = 9.4

Step by step explanation:

I only understood 8 sorry:(

Jackson invested $590 in an account paying an interest rate of 6 % compounded
monthly. Ellie invested $590 in an account paying an interest rate of 61%
compounded continuously. After 19 years, how much more money would Ellie have
in her account than Jackson, to the nearest dollar?

Answers

Answer:

$100

Step-by-step explanation:

C. Solve for the missing measurements.
m<AZL
m AL

​

Answers

AZL is the correct answer

please help me to find the answer for the 2 i got wrong!

Answers

4 is (2,3) and 6 is (3,-4)

Find the equation of the line specified.
The line passes through the points ( -2, 3) and ( -4, 7)
a.
y = -2x - 1
c.
y = -4x - 1
b.
y = -2x + 3
d.
y = -2x + 7


Please select the best answer from the choices provided

A
B
C
D

Answers

Answer:

D

Step-by-step explanation:

I feel like I know but pls help

Answers

Answer:

y = 27/6

Step-by-step explanation:

3/2x - 6 = -9/2x + 21

12/2x = 27

6x = 27

Since both are y, you know the values are equal to each other.
3/2x - 6 = -9/2x + 21
3/2x = -9/2x + 27
Get rid of fraction (multiply by 2)
3x = -9x + 54
12x = 54, x = 4.5
Plug 4.5 into any equation as x
y = 3/2(4.5) - 6
y = 6.75 - 6 = 0.75

Solution: y = 0.75 or 3/4

Tegan takes 23 minutes to walk to work. After getting a new
job, the time it takes Tegan to walk to work has decreased by
19%. How many minutes does it take Tegan to walk to work
now?

Answers

Answer:

18.66 minutes or 18 minutes 39.6 seconds

Step-by-step explanation:

23 x .19 = 4.37

23 - 4.37 = 18.66 minutes

A scale model of a statue is 32 centimeters tall. Using a scale factor of 1:12, find the height of the actual statue in centimeters,

A.2.7 centimeters
B.252 centimeters
C.128 centimeters
D.384 centimeters

Answers

Answer:

D

Step-by-step explanation:

you have to multiply the scale model by 12

Answer:

D. 384cm

Step-by-step explanation:

1:12

32:×

12×32

=384cm

what the median of 17, 24, 8, 19, 6, 34, 10, 28, 48, 12
​

Answers


The median is 48 because it is the biggest number and the biggest number is the median

help me please!!!!!!!!!​

Answers

Answer:

B) 21/29

Step-by-step explanation:

The adams traveled 189 miles in 4.5 hours. The equation 4.5m = 189 can be used to find their mean rate of travel. What is the value of m?

Answers

Answer:

42

Step-by-step explanation:

Answer:42

Step-by-step explanation:

Find the missing supplementary angle.

Answers

50 degrees I’m guessing is the answer

Please help me with this!! I’ll give brainliest

Answers

Answer:

I think its 62 IM SO SORRY IF ITS WRONG!!!!!!

Step-by-step explanation:

Because

8 x 2 = 16

3 x 2 =  6

10 x 4= 40

all together is 62

     

HELP f(70)=1000(0.5)^x/30

type an integer or decimal rounded to the nearest tenth

Answers

Answer:

198.425

Step-by-step explanation:

For this problem you just plug in numbers for the answer. Typically you will see functions in the f(x) format but this time you're given f(70) which means that 70=x so you just plug in 70 for the x on the right side of the equation and get 198.425.

Solve for u.

18 = - 6/5 u

Simplify your answer as much as possible .

Answers

the answer is

u = -15, hope this helps!

Answer:

U = -15

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

Step 2: Flip the equation.

Step 3: Multiply both sides by 5/(-6).

then you should get -15

21 less than four times a
number is the same as
six times the number plus
11. What is the number?

Answers

Answer:

-16 =n

Step-by-step explanation:

Let n= number

4n -21 = 6n +11

Subtract 4n from each side

4n-4n -21 = 6n-4n +11

-21 = 2n+11

Subtract 11 from each side

-21-11 = 2n

-32 = 2n

Divide by 2

-32/2 = 2n/2

-16 =n

Answer : -16 =n

Step-by-step explanation:

Let n= number

4n -21 = 6n +11

Subtract 4n from each side

4n-4n -21 = 6n-4n +11

-21 = 2n+11

Subtract 11 from each side

-21-11 = 2n

-32 = 2n

Divide by 2

-32/2 = 2n/2

-16 =n

I’ll give brainliest

Answers

Answer:

64

Step-by-step explanation:

bceuse  8 is the radius

x-2y=-2
x+2y=6
Its system by elimination

Answers

Answer:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form:

(2,2)

Equation Form:

x=2,y=2

Step-by-step explanation:

Answer: x = 2  and y = 2

Step-by-step explanation:

help me pls thx
It costs $20 to buy 5 sandwiches from a vending machine. At this rate, what is the cost for 8 sandwiches? If you get stuck, consider creating a table.

Answers

Answer:

$ 32

Step-by-step explanation:

20 ÷ 5 = 4

Four dollars per sandwich

4 x 3 = 12

20 + 12 = 32

or

8 x 4 = 32

The answer would be $32

please help me find the value of X

Answers

Answer:

Is this

Step-by-step explanation:

Answer:

D. 20

Step-by-step explanation:

if x = 20 then 3 x 20 + 10 = 70

and x = 20 so 70 + 20 = 90

and since this is a right angle, it all matches up :)

Choose the calculation that shows “add 26 to m”. A)

Answers

Answer: easy it’s..........

Step-by-step explanation: 26+M

Can somebody help me out with these punnett square questions, just 1. and 2.

Answers

Gg gg
Gg gg

TT TT
Tt Tt

Write a quadratic function whose graph has a vertex of (3,2) and passes through the point (4,7).

Answers

Answer:

3.4

Step-by-step explanation:

whats the answer to {4t-t+2}4t−t+2

Answers

Answer:

16t^2 - 4t^2 +8t -t +2

12t^2 +7t +2

[tex](3t+2)4t - t + 212t^{2} + (8t-t)+212t^{2}+7t+2[/tex]

There ya go

~ Mari

Use the numbers below to simplify the expression. Numbers may be used once or not at all. 34671011 3y + 7 + 4y + 3 = y +

Answers

Answer:

[tex]3y + 7 + 4y + 3 = 7y + 10[/tex]

Step-by-step explanation:

Given

[tex]3y + 7 + 4y + 3 = [\ ]y + [\ ][/tex]

Required

Simplify

We have:

[tex]3y + 7 + 4y + 3[/tex]

Collect like terms

[tex]3y + 7 + 4y + 3 = 3y + 4y + 7 + 3[/tex]

Evaluate like terms

[tex]3y + 7 + 4y + 3 = 7y + 10[/tex]

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