3 years ago

The time required to complete a job varies inversely as the number of

Mathematics

1 answer:

svp [43]3 years ago

4 0

Answer:

494/22= 22.45

~ It took one person 22.45 hours to paint a wall

Therefore, the amount of time 19 people would do the job is

= 22.45 × 19

= 426.63 hours or 427 hours 3 minutes

You might be interested in

How many lines of symmetry does a kite have?

OverLord2011 [107]

It has one line of symmetry.

4 0

3 years ago

Read 2 more answers

If it takes Mr. French 22 min to get to school in the morning and he is traveling at a rate of 100 m per min how far is his hous

Nimfa-mama [501]

Answer:

220 m

Step-by-step explanation:

since it takes him 22 min, and each min he travels 100 m, you just have to multiply 22 by 100

22 x 100 = 220

3 0

3 years ago

Find the mean and median of the following data set:

VARVARA [1.3K]

Answer:

Mean: 23. 54545455

Median: 22

Step-by-step explanation:

The median represents the center the most because when you are solving for the median, you look for the direct center of the terms which will be 22, the median.

6 0

2 years ago

X + y = -1<br> 4x - 2y = -16

djyliett [7]

Answer:

$x=-3 \\and\\ y=2$

Step-by-step explanation:

$x + y = -1$ Equation:1

$4x - 2y = -16$ Equation:2

Solving Equation:1

$x+y=-1$

Subtracting 'y' from both the sides:

$x+y-y=-1-y\\\\x=-1-y$

Putting 'x' in Equation :2

$4(-1-y)-2y=-16\\\\-4-4y-2y=-16\\\\-4-6y=-16$

Adding '4' both the sides

$-6y=-16+4\\\\-6y=-12\\\\y=-12/-6\\\\y=2$

Putting the value of 'y' in equation:1

$x+y=-1$

$x+(2)=-1\\\\x=-1-2\\\\x=-3\\$

The solution is:

$x=-3 \\and\\ y=2$

6 0

2 years ago

Two people independently each pick a number from 1 to 10. what is the probability that the two of them pick the same number?

Marysya12 [62]

1 in 10 is the probability of two people picking the same number.

7 0

3 years ago