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Svetlanka [38]
3 years ago
10

Rodrigo can carpet a hous in twelve hours, working by himself. DaShawn can carpet the same house in ten hours . Working togehter

, how long would it take Rodrigo and DaShawn to carpet the house
Mathematics
1 answer:
hjlf3 years ago
3 0

Answer:

55/11 hrs

Step-by-step explanation:

rodrigo 12hrs

DaShawn 10hrs

1/12+1/10=11/60

then reciprocate

60/11=5 5/11 hrs

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Renita started her homework at 3:45 P.M. She worked for 2 hours and 15 minutes. What time did she finish her homework?
Flauer [41]

Answer:

6:00 or 6 o'clock

Step-by-step explanation:

1) Add 2 to the hours. So, 3+2=5

2) Add 15 minutes to 45 minutes. So, 15+45=60

3) 60 minutes is an hour, so therefore add one more hour. 5+1=6

4) There are 6 hours and 0 minutes.

So, the time that Renita finished her homework was 6:00.


Hope this helps!!                                                             ~Carley R.

8 0
3 years ago
Shorty’s Muffler advertises it can install a new muffler in 30 minutes or less. However, the work standards department at corpor
pav-90 [236]

Answer:

The installations at the Maumee branch would you expect to take more than 30 minutes is 10.

Step-by-step explanation:

Consider the provided information.

Let x is the installations at the Maumee branch take more than 30 minutes.

The work standards department at corporate headquarters recently conducted a study and found that 20% of the mufflers were not installed in 30 minutes or less.

Therefore, π=0.20

The Maumee branch installed 50 mufflers last month.

Thus, n=50

Mean of the distribution: μ=nπ

Substitute the respective values in the above formula.

μ=(50)(0.20)

μ=10

Hence, the installations at the Maumee branch would you expect to take more than 30 minutes is 10.

7 0
3 years ago
The ratio of 3 to 4 is written as 4/3. TrueFalse
irga5000 [103]
False. It’s should be 3/4
8 0
3 years ago
Read 2 more answers
please help :{ brainliest if you can get it right and I need you to prove why your answer is correct, thanksss​
beks73 [17]

Answer:

The Value of a=\frac{15}{4}.

Step-by-step explanation:

We have Named the figure please find the attachment for your reference.

Given:

PR = y

QR = a

RS = b

PS = z

PQ = x

QS = 15

∠P = 90°

∠R = 90°

∠Q = 60°

∠S = 30°

We need to find the Value of 'a'.

Solution:

Now we know that:

In Δ PQS

∠P = 90°

∠S = 30°

Now we know that;

sin\ \theta = \frac{opposite\ side}{Hypotenuse}

sin \ S= \frac{PQ}{QS}

Substituting the given values we get;

sin\ 30\°=\frac{x}{15}

Now we know that;

sin\ 30\° = \frac12

So we can say that;

\frac{1}{2}=\frac{x}{15}\\\\x=\frac{15}{2}

Now In Triangle PQR.

∠R = 90°

∠Q = 60°

So we can say that;

Cos \theta = \frac{adjacent \ Side}{Hypotenuse}\\

Cos\ Q = \frac{QR}{PQ}

Substituting the given values we get;

cos 60\°= \frac{a}{x}

Now we know that;

cos 60\°= \frac12

x=\frac{15}{2}

So substituting the values we get;

\frac{1}{2}=\frac{a}{\frac{15}{2}}

By Using Cross Multiplication we get;

a= \frac{1}{2}\times\frac{15}{2}\\\\a=\frac{15}{4}

Hence The Value of a=\frac{15}{4}.

6 0
3 years ago
How is multiplication of two integers represented on a number line and a chip board?
labwork [276]
Can you give me an example? Thank you

8 0
3 years ago
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