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Zigmanuir [339]
3 years ago
9

a contractor finds that crew A takes 5 1/2 hours to construct a retaining wall and crew B can do the same job in 8 1/2 hours. if

crew A and crew B work together how long will it take them to construct the retaining wall
Mathematics
1 answer:
o-na [289]3 years ago
4 0

Answer:

14hrs

Step-by-step explanation:

5 1/2+8 1/2

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Haaaalppppppppppppppppp
Marizza181 [45]

Answer:

50-2.5t=w. no, the water will all have drained by then.

Step-by-step explanation:

2.5 per min so

min=t

therefore 2.5t

theres 50 quarts of water

50-2.5t = w (water left in the tank)

_____________________________________-

part 2,

2.5*30 = 75, and 50<75

this is impossible.

7 0
3 years ago
Determine the exact value of sin 13pi/12
ohaa [14]
To answer the problem above, convert the given angle to an equivalent angle with the unit of degrees.
                               (13π / 12 rad) x (360° / 2π) = 195°
We can solve this by directly inputting the value in our scientific calculators. The answer is approximately -0.2588.
6 0
3 years ago
Can someone plz help me it’s due at 11:30 plz help!!!
arsen [322]
Well it is b I’m 80% sure
4 0
3 years ago
The total number of eggs in k cartons where each carton contains n eggs. Write this as an expression.
Liula [17]

。☆✼★ ━━━━━━━━━━━━━━  ☾  

It makes more sense if you think about it in numerical terms.

Say if there were 10 eggs per carton and there were 5 cartons, what would you do to find the total?

You would multiply them

It is the same in this case

The expression would be n x k

It can be written as just nk though

Have A Nice Day ❤    

Stay Brainly! ヅ    

- Ally ✧    

。☆✼★ ━━━━━━━━━━━━━━  ☾

4 0
2 years ago
Read 2 more answers
Which of the following represents the zeros of f(x) = 6x3 + 25x2 − 24x + 5?
cestrela7 [59]
F(-5) = 6(-5)^3 + 24(-5)^2 - 24(-5) + 5 =  0
so x = -5 is one zero.
7 0
3 years ago
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