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2 years ago

4 people can paint a house in 6 hours. a) How long would it take 1 person to paint the house?

Mathematics

1 answer:

OlgaM077 [116]2 years ago

8 0

Answer:

9 hours

Step-by-step explanation:

If there's 4 people, they each need 1.5h So you multiply 1.5 by 6 and that's how you find how long it takes for 1 person.

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Alina is able to swim at a rate of about 2.5 miles per hour. Talia is able to swim at a rate of 1.8 meters per second. Which sta

kirza4 [7]

Remark

Without being given choices, we can get answers but they may not be listed among your. The important think is to be working in the same units

Convert miles/hour to m/sec

$\frac{2.5 mi}{h}*\frac{1 h}{3600 sec}*\frac{1.6 km}{1 mi}*\frac{1000 m}{1 km}$

Now just multiply all the numerators together and divide by all the denominators.

Numerators: 2.5 * 1.6 * 1000 = 4000

Denominators: 3600

numerator/denominator = 4000/3600 m/s = 1.111 m/s

Conclusion

Talia is a much faster swimmer than Alina because 1.8 is greater than 1.11. Both numbers are in m/s.

2.5 miles / hour = 1.

5 0

2 years ago

Read 2 more answers

Darien is discounting all prices on the sales for 20%. Which expression below represents the price, p, of any item he marks down

Dominik [7]

Answer: C. 0.8p

Step-by-step explanation:

Since Darien is discounting the prices by 20%, the new price will be 80% of the original price, or 0.8 times the original price

7 0

2 years ago

Kim has a hundred jackets 25 scarves and 168 pairs of shoes. Each shoe has 7 buttons. How many buttons are on Kim shoes. Find th

Virty [35]

Answer:

there whould be 1176 botone on all the pairs combined

Step-by-step explanation:

hope this will help

7 0

2 years ago

Find the radius of convergence, r, of the series. ∞ xn 2n − 1 n = 1 r = 1 find the interval, i, of convergence of the series. (e

Bingel [31]

Assuming the series is

$\displaystyle\sum_{n\ge1}\frac{x^n}{2n-1}$

The series will converge if

$\displaystyle\lim_{n\to\infty}\left|\frac{\frac{x^{n+1}}{2(n+1)-1}}{\frac{x^n}{2n-1}}\right|$

We have

$\displaystyle\lim_{n\to\infty}\left|\frac{\frac{x^{n+1}}{2(n+1)-1}}{\frac{x^n}{2n-1}}\right|=|x|\lim_{n\to\infty}\frac{\frac1{2n+1}}{\frac1{2n-1}}=|x|-\lim_{n\to\infty}\frac{2n-1}{2n+1}=|x|$

So the series will certainly converge if $-1$ , but we also need to check the endpoints of the interval.

If $x=1$ , then the series is a scaled harmonic series, which we know diverges.

On the other hand, if $x=-1$ , by the alternating series test we can show that the series converges, since

$\left|\dfrac{(-1)^n}{2n-1}\right|=\dfrac1{2n-1}\to0$

and is strictly decreasing.

So, the interval of convergence for the series is $-1\le x$ .

6 0

3 years ago

Please answer this question! Easy, just not for me! Will give brainliest. :)

Mila [183]

Answer:

20.3 cm. to the nearest tenth.

Step-by-step explanation:

Using the Pythagoras Theorem:

CR^2 = CS^2 + SR^2

= 6^2 + 13^2

= 205

CR = √205 cm.

UR = CR (because they are both radii of the circle).

So UR = √205

and SU =6 + √205

= 20.3 cm to the nearest tenth.

6 0

2 years ago

4 people can paint a house in 6 hours. a) How long would it take 1 person to paint the house?​

4 people can paint a house in 6 hours. a) How long would it take 1 person to paint the house?