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3 years ago

Please help i will mark brainliest

Mathematics

2 answers:

il63 [147K]3 years ago

8 0

Answer:

. (5,20)

Step-by-step (x,y)=(5,20)

hichkok12 [17]3 years ago

3 0

5, 20

Hope this helps

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Find the value of x. 136° (8x + 40) (The figure is not to scale.)

ser-zykov [4K]

Answer:

x= 12

Step-by-step explanation:

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2 years ago

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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

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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

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

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 $\frac{y}{x+y} \\$

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3 years ago

Por una tubería de 4.02 cm de diámetro circula agua a una velocidad de 1.9 m/s. En

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Answer:

7.91

Step-by-step explanation:

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3 years ago

James is earning money to buy a bicycle for $100. For each dollar James earns, his mother gives him $1. So far he has earned $14

Norma-Jean [14]

Answer:

James needs to earn 78 more dollars.

Step-by-step explanation:

If you add up all of the money James has earned, (1 + 7 + 14), it equals 22. If you subtract 22 from 100, it equals 78. Therefore James needs to earn 78 more dollars.

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3 years ago

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Angel says that raising fraction to the power of -1 is the same as finding the reciprocal of the fraction do you agree

Dovator [93]

Answer:

yes, because when you "raise a number to power" you're multiplying the number by itself, and the power represents how many times you do so.

I hope this answers your question

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3 years ago