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Dvinal [7]
3 years ago
11

Solve rhis equation -9h - 6 + 12h + 40 = 22

Mathematics
1 answer:
lisov135 [29]3 years ago
5 0

order of operations   3h+34=22  it is imposssible now i know why you asked

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Machine A can complete a certain job in x hours. Machine B can complete the same job in y hours. If A and B work together at the
scZoUnD [109]

Answer:

\frac{y}{x+y}

Step-by-step explanation:

The required answer is the rate at  which Machine A  works when the two machines are combined.

Note: the rate of doing work is express as

rate=\frac{1}{time taken} \\

Hence we can conclude that Machine A working rate is

machine A=\frac{1}{x} \\ and machine B working rate is

machine B=\frac{1}{y} \\

When the two machine works together, the effective working rate is

\frac{1}{x}+\frac{1}{y}\\\frac{xy}{x+y}\\

The fraction of the work that Machine B will not have complete because of Machine A help is the total work done by machine A

Hence the fraction of work done by A is expressed as

\frac{1}{x}*combine working rate

\frac{1}{x}*\frac{xy}{x+y}\\\frac{y}{x+y} \\

Hence the fraction of the work that Machine B will not have complete because of Machine A help is the total work done by machine A is \frac{y}{x+y} \\

6 0
3 years ago
Simplify the ratio 12:18
bonufazy [111]

Answer:

2:3

Step-by-step explanation:

12:18 (divide by small number:1)

6:9(divide by: 3)

2:3(look at both the side and simplify)

4 0
3 years ago
Read 2 more answers
Find the lateral area for the prism. L.A. =<br> Find the total area for the prism. T.A. =
Ksivusya [100]
The lateral area of the prism is given by:
LA=[area of the two triangles]+[area of the lateral rectangles]
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c^2=a^2+b^2
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The total are will be given by:
T.A=L.A+base area
base area=length*width
=4*8
=32 in^2
thus;
T.A=32+129.69
T.A=161.69 in^2

6 0
4 years ago
Read 2 more answers
Write the equation of a line in point-slope form that has a slope of -1 and passes through the point (-2, 5).
Angelina_Jolie [31]
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8 0
3 years ago
Read 2 more answers
Jeremy says that 5.676677666777... is a rational number because it is decimal that goes on forever
Murljashka [212]

Answer:

It is

Step-by-step explanation:

because it repeats

8 0
3 years ago
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