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kow [346]
3 years ago
9

WORTH 50 POINTS please help

Mathematics
1 answer:
Sophie [7]3 years ago
7 0

Answer: not sure but I think the equation would be x=1 sorry

Step-by-step explanation:

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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
The environment club is selling indoor herbs gardens for Earth Day. Each member is encouraged to sell at least 10 gardens. You s
Ad libitum [116K]
<span>The inequality is looking for a value of "at least 10" gardens. This means something "greater than or equal to" 10 (>=10). After selling 3 on Monday plus 4 on Tuesday, this leaves "x" to be sold to reach the goal. By setting this on the same side as the 7, we can create the inequality to find out how many more are needed, at minimum, to reach our stated goal: 7 + x >= 10, which, when subtracting the 7 out from both sides of the inequality, leaves x >= 3 gardens.</span>
7 0
3 years ago
Which lines have a y intercept of 5
stiks02 [169]
Y=2x+5 could be used for this since it has a y-int of 5
8 0
3 years ago
PLEASE WRITE THE EQUATION THAT IS WHAT IT IS ASKING!! THE EQUATION IS IN SLOPE INTERCEPT FORM!!
pshichka [43]

Answer:

y = -3x-5

Step-by-step explanation:

4 0
3 years ago
For which equation is (4, 3) a solution?<br> O y=2x-1<br> Oy=3x-4<br> Oy=2x-5<br> Oy= x + 3
Helen [10]
The answer is Y=3x-4
5 0
3 years ago
Read 2 more answers
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