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4 years ago

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help A plumber charges a $75 flat fee for jobs lasting up to an hour and $30 for each hour of labor after the first hour. Which

expression models the cost of a job lasting h hours, when h is greater than 1? 75 + 30 h 75 + 30 (h minus 1) 75 h + 30 75 (h minus 1) + 30

1 answer:

lutik1710 [3]4 years ago

5 0

Answer:

30h+75

Step-by-step explanation:

Hope this helps!

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Eli read four more biographies than historical fiction book during the semester. He also read two fewer mysteries than historica

9966 [12]

Answer: Eli read 3 historical fiction books , 7 biographies and 1 mystery book.

Step-by-step explanation:

Let x be the number of historical fiction books Eli read.

Then, Number of biographies he read = x+4

Number of mysteries he read = x-2

If he read a total of eleven books during the semester , then we have the following equation :

$x+x+4+x-2=11$

$\\\\\Rightarrow\ 3x+2=11$

$\\\\\Rightarrow\ 3x=9$ (Subtract 2 from both sides )

$x=3$ (Divide both sides by 3)

Therefore , Number of historical fiction books Eli read = 3

Number of biographies he read = 3+4=7

Number of mysteries he read =3-2=1

Hence, Eli read 3 historical fiction books , 7 biographies and 1 mystery book.

6 0

3 years ago

Read 2 more answers

De acuerdo con la siguiente función f(x)=-3x+8, ¿cuál es el punto de intersección de su grafica con el eje y?

Ket [755]

Answer:

El punto de intersección con el eje “y” será (0 ; 8).

Step-by-step explanation:

En este caso la función es f(x)= -3*x + 8, o lo que es lo mismo, y= -3*x + 8

Para encontrar la intersección en y, se debe sustituir a la variable x por 0 por en la función. Una vez hecha la sustitución, es posible resolver la ecuación para encontrar el valor de y.

En este caso:

y= -3*0 + 8

Resolviendo:

y= 0 + 8

y= 8

Otra forma de resolverlo es, siendo la función f(x)= m*x + b (donde m es la pendiente y b la ordenada al origen), el valor b es el punto donde una recta cruza el eje y. En este caso la ordenada al origen tiene un valor de 8.

Entonces <u><em>el punto de intersección con el eje “y” será (0 ; 8).</em></u>

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3 years ago

A bakery sold 119 chocolate cupcakes in a day. Which was 35% of the total number of cupcakes sold that day . How many total cupc

geniusboy [140]

35% = 119 cupcakes
100% = ? cupcakes
(119*100)/35=11900/35=340 cupcakes
Answer: 340 cupcakes they sold that day
Hope it helped, good luck.

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3 years ago

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Flauer [41]

Answer:

y=3x+1

Step-by-step explanation:

I'm very bad at explaining things so im sorry if this doesn't make any sense

the y axis goes up

the x axis goes sideways

to fill in the "y = ____x+_____"

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3 years ago

Independent practice: tangents of circles

olga55 [171]

Answer:

here is your answer

Step-by-step explanation:

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