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Vsevolod [243]
4 years ago
9

A plumber charges $30.00 per call plus $25.00 per hour. If a certain repair cost $80.00, how long does it take?

Mathematics
1 answer:
Liono4ka [1.6K]4 years ago
3 0

Answer:

2 hours

Step-by-step explanation:

Y=25x+30

80=25x+30

50=25x

2=x

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What is (w-4/9)(-2/3)=-4/5
pshichka [43]
<span>(-2/3)*(w-(4/9)) = -4/3 // + -4/3

(-2/3)*(w-(4/9))-(-4/3) = 0

(-2/3)*(w-4/9)+4/3 = 0

4/3-2/3*(w-4/9) = 0

(-2/3*3*(w-4/9))/3+4/3 = 0

4-2/3*3*(w-4/9) = 0

44/9-2*w = 0

(44/9-2*w)/3 = 0

(44/9-2*w)/3 = 0 // * 3

44/9-2*w = 0

44/9-2*w = 0 // - 44/9

-2*w = -44/9 // : -2

w = -44/9/(-2)

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w = 22/9</span>
8 0
3 years ago
PLS HELP. Find the value of a, AB, BC, CD, AD in the parallelogram. Pls show work.
BaLLatris [955]

Answer:

A= 21

Step-by-step explanation:

a=19.5+1.5=21

21+2.9=23.9

2(21)-18.1

Lines AB and CD are congruent.

6 0
3 years ago
Follow this link to view Juan's work. Critique Juan's work by justifying correct solutions and by explaining any errors he made
Aleksandr [31]

Answer:

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4 0
3 years ago
Brian spends
mariarad [96]

Answer:

Brian have £105 left.

Step-by-step explanation:

Given,

Amount earned by Brian per week = £168

Fraction spent on rent = 1/8

Amount spent on rent = 1/8 x 168

Amount spent on rent = £42

Fraction spent on food = 1/8

Amount spent on food = 1/8 x 168

Amount spent on food = £21

Amount left = Amount earned - amount spent on rent - amount spent on food

Amount left = 168 - 42 - 21

Amount left = £105

Brian have £105 left.

I hope this helps you

5 0
3 years ago
What is the value of x in the equation:<br><br> -10x -19 = 19 -8x
Rom4ik [11]

Answer:

x = -19

Step-by-step explanation:

-10x - 19 = 19 - 8x

-10x + 8x = 19 + 19

-2x = 38

x = -19

6 0
3 years ago
Read 2 more answers
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