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Zigmanuir [339]
4 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]4 years ago
4 0

Answer:

14hrs

Step-by-step explanation:

5 1/2+8 1/2

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A wire that is 22 feet long connects the top of a pole to the ground. The wire is attached to the ground at a point that is 10 f
Ksju [112]

Answer:

19.6ft (nearest tenth)

Step-by-step explanation:

Please refer to the attached photo for better understanding.

Given Length of Wire = BC = 22ft

Given Distance from Grounded Wire to Base of Pole = AC = 10ft

Length of Pole = AB

We can use Pythagoras' Theorem to find Length of Pole, AB.

By Pythagoras' Theorem,

c^{2} =a^{2} +b^{2} \\BC^{2} =AB^{2} + AC^{2} \\22^{2} =AB^{2} +10^{2} \\484=AB^{2} +100\\AB^{2} =484-100\\AB=\sqrt{384} ft\\=19.6ft (nearest tenth)

6 0
2 years ago
If 60 is 75% of a value,what is that value
NISA [10]
80

<span>Using the rule of 3, 60x100% =6000(obviously) and 6000/75 = 80</span>
4 0
3 years ago
Read 2 more answers
Is the value of the variables used in this metric system?
Marat540 [252]

Solution:

a=-2 b=1 c=4 d=0

Analysis:

When we multiply a matrix by a constant, we multiply each term of the matrix by the constant.

In this case, as we need to find the value of the initial matrix, we can divide each term of the matrix by the constant. In this case, let´s divide by -5

So, it would be:

a=10/-5 a=-2

b=-5/-5 b=1

c=-20/-5 c=4

d=0/-5 d=0

6 0
1 year ago
Help me!!! HELP ME!!!! ME!!!!!
S_A_V [24]

Answer: 11,921,360

Step-by-step explanation:

8 0
3 years ago
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A pizza with a 10-inch diameter costs $6.99 and is cut into 6 slices, what is the cost per slice? ​
Klio2033 [76]

Answer:

$1.165

Step-by-step explanation:

$6.99/6 slices = 1.165

3 0
4 years ago
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