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Alekssandra [29.7K]
3 years ago
14

Please show work! will give brainlist!

Mathematics
2 answers:
laila [671]3 years ago
7 0
The answer is a, 21 inches
Akimi4 [234]3 years ago
5 0

Answer:

a) 21 inches :))

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Two mechanics worked on a car. the first mechanic worked for 15 hours, and the second mechanic worked for 5 hours. together they
Stells [14]
Let 
x----------> the first mechanic rates
y----------> the second mechanic rates

we know that
x+y=165
15x+5y=1775

using a graph tool
see the attached figure

the solution is
x=95
y=70

the answer is

the rates of the first mechanic is 95
the rates of the second mechanic is 70

4 0
3 years ago
6. Suppose that a password for a computer system must have at least 6, but no more than 9 characters, where each character in th
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How many of these passwords contain at least one occurrence of at least one of the five special characters?

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2 years ago
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2 years ago
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Write an equation in slope-intercept form for the line that passes through (-3, 5), and is perpendicular to the graph of 5x - 6y
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4 0
3 years ago
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Twice the difference of a number and 2 is equal to three times the sum of the number and 4
ikadub [295]

Answer:

Step-by-step explanation:

We are given that Twice the difference of a number and 2 is equal to three times the sum of the number and 4. And we have to tell the number.

Let the number be x

Its difference from 2 = x-2

Twice the difference =2(x-2)

Sum of number and 4 = x+4

Three times of the sum : 3(x+4)

Hence 2(x+2)=3(x+4)

2x+2×2=3x+3×4

2x+4=3x+12

Subtracting 12 and 2x from both sides.

4-12=3x-2x

-8=x

Hence the number is -8

5 0
3 years ago
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