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sasho [114]
3 years ago
13

Brock is a plumber. He charges a flat rate of $40 to visit a house to inspect it's plumbing. He charges an additional $20 for ev

ery hour he spends inspecting or making repairs. Which graph correctly shows the price of using Brock's plumbing service vs time?
Mathematics
1 answer:
asambeis [7]3 years ago
4 0
Graph W correctly shows the price of using Brock's plumbing service vs time
Brainliest plzzz
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Para reunir dinero para su gira de estudios , los alumnos de un curso deciden vender números de una rifa que se encuentran numer
QveST [7]

Respuesta:

0.53

Explicación:

Para calcular la posibilidad del evento A: "ganar la rifa comprando todos los números múltiplos de 3 o 5", debemos usar la siguiente fórmula.

P(A) = casos favorables / casos posibles

Evaluemos primero todos los casos que son múltiplos de 3, entre 1 y 100: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75, 78, 81, 84, 87, 90, 93, 96, 99. En total son 33.

Ahora, evaluemos todos los casos que son múltiplos de 3, entre 1 y 100: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100. En total son 20.

El número total de casos favorables es 33 + 20 = 53.

El número de casos posibles es el total de números de 1 a 100, es decir 100.

Luego P(A) = 53/100 = 0.53.

7 0
3 years ago
Jill is a sales person for Mountain Transport. Every month she sells vehicles in this ratio one car for every six bicycles , and
UkoKoshka [18]
One car 1c

six bicycles 6b

two motorcycles

1c+6b+2m=9cbm

I think this is right but its been forever since i had to do these so 
8 0
3 years ago
It took Samantha 324 minuets to cook an 18 pound turkey. How many minutes per pound did it take to cook the turkey
Natalka [10]
18 min per pound

324 min.  =   X
______        _____
    18                 1 pound

324 x 1 = 324       324/18= 18 pounds

Cross multiply then divide as above.



5 0
3 years ago
A class has 18 boys and 14 girls. One student is selected. F is the event of selecting a girl, and K is the event of selecting K
Natalija [7]
B.
The Probability of choosing a girl is 17/30.
The probability of choosing an A student is 5/30
<span>The P(girl) + the P(A student) = 17/30 + 5/30 = 22/30 = 11/15.</span>
7 0
3 years ago
Which is the area of a circle with a radius of 5 units? (use 3.14 for )?
Sauron [17]
The area of a circle is A=πr². 
Since π is about 3.14 we can substitute that into the equation.
So A=3.14×r²
We can substitute the given radius for r.
A= 3.14 × 5²
When a number is squared, or has the two over it, we multiply it by itself. 
5 × 5= 25
A= 3.14 × 25
Simplify this and the area of the circle is about 78.5
A≈78.5
6 0
3 years ago
Read 2 more answers
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