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Elina [12.6K]
2 years ago
12

The first bricklayer can build a wall in 15 days. the second bricklayer can build the same wall in 10 days. how long will it tak

e them to build the wall together?
i really need help.
Mathematics
2 answers:
SSSSS [86.1K]2 years ago
7 0
Around 8 4/7 days is what it takes
aliya0001 [1]2 years ago
7 0

Answer:

6 days

Step-by-step explanation:

1/T1 + 1/T2 = 1/TotalTime

Builder one is 1/15

Builder two is 1/10.

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Answer: Dear friend google

Step-by-step explanation: search it up

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A chef buys 9 cucumbers, 18 peppers, and 21 tomatoes at the farmer's market. How much does she spend? Cucumbers 6 for $2, Pepper
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20.43 what idid was add them all
5 0
4 years ago
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Find the value of each variable<br> x= <br> y=<br> z=
zvonat [6]

Answer:

Step-by-step explanation:

A 45 degree angle in a right triangle produces 2 equal sides. In this case z and the perpendicular line are equal. So that's were we'll start. Then you move on to the 60 degree angle to get x and y.

Finding z

z^2 + z^2 = (24√2)                    Combine the left

2z^2 = 24^2 * 2                         Divide both sides by 2

2z^2/2 = 24^2/2

z^2 = 24^2                                 Take the square root of both sides

√z^2 = √24^2

z = 24

Finding x and y

The perpendicular = 24. Because it is a 60 degree angle that's given, we can do this without a calculator.

Tan 60 = opposite over adjacent

sqrt(3) = Perpendicular / z                      Multiply both sides by z

z*sqrt(3) = perpendicular

The above calculation tells us the perpendicular is 24

z*sqrt(3) = 24                                           Divide by sqrt 3

z = 24/√3

z = 24/1.73

z = 8√3

Finding x

Use Pythagoras to determine x

Perpendicular^2 + (8√3)^2 = x^2

24^2 + 8^2*3 = x^2

576 + 192 = x^2

768 = x^2

√x^2 = √768

x = 27.71

7 0
2 years ago
32 is 25% of x. Hurry please
kondor19780726 [428]
The answer is 128

hope that helps!
3 0
3 years ago
Read 2 more answers
Please help I’m not good at this
tia_tia [17]
23/4

Step by step:
5/1 + 3/4
5/1 • 4 = 20/4
20+3/4
23/4
8 0
4 years ago
Read 2 more answers
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