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Sindrei [870]
4 years ago
10

What is the solution of this equation -4z = 24

Mathematics
1 answer:
inn [45]4 years ago
3 0

Answer:

z = -6

Step-by-step explanation:

-4z=24\\\\\frac{-4z=24}{-4}\\\\ \boxed{z=-6}

Hope this helps.

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What is the exact value of tan(pi/4)?
tatyana61 [14]

1

The exact value of tan(π4) tan ( π 4 ) is 1 .

6 0
3 years ago
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
Anna has a recipe for pumpkin bars. She uses 2 ½ cups of sugar for every 3 pans of pumpkin bars. AJ wants to follow the same rec
Kisachek [45]

Answer:

2.5h = 3g

Step-by-step explanation:

Given

Sugar = 2\frac{1}{2}\ cups

Bars = 3\ pans

Required

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We have that:

Sugar = g

Bars = h

To do this, we make use of the following equivalent ratios.

Bars : Sugar = Bars : Sugar

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3 : 2\frac{1}{2} = h : g

Express fraction as decimal

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Express as fraction

\frac{3}{2.5} = \frac{h}{g}

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8 0
3 years ago
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Butoxors [25]

Answer:

x = 3

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4x + 3 = 5x

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-1x = -3

x = -1 × (-3)

<u>x</u><u> </u><u>=</u><u> </u><u>3</u>

8 0
3 years ago
Read 2 more answers
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lbvjy [14]

Step-by-step explanation:

option a and option d ,

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