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Ivahew [28]
3 years ago
10

A plumber charges $30 for a service call and an additional $25 per hour. Write an equation in slope-intercept form to represent

the cost of service, C, for h hours of service. Then find the cost if the plumber worked 7 hours on a project.
Mathematics
1 answer:
murzikaleks [220]3 years ago
3 0

Answer:

The equation is c=25h+30 and the answer is 205

Step-by-step explanation:

Plug in 7 for h.

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What is (2)(-3)(-4)
lawyer [7]

Answer:

No, No, Yes, Yes.

Step-by-step explanation: 2 times -3 = -6. -6 times -4 = 24.

So, with that said, the first one multiples out to -24.

The second multiplies out to again -24.

12 times 2 = 24.

A negative and a negative multiply to become a positive, so -4 times -6 = 24.

7 0
3 years ago
Read 2 more answers
beth is making the minimum wage of $7.25 per hour. her boss promises her a raise of 5% how much more per week will she make if s
Korvikt [17]

Answer:

$13.60 difference approximately.

6 0
3 years ago
Cada par de puntos determina una recta con la pendiente dada. Halla el valor de la incógnita en cada caso: a. (3,2);(4,x); m=1 b
True [87]

Answer:

a=3,b=0,c=5,d=-4/21

Step-by-step explanation:

The formule we use to get the slope is:

m = \frac{y2-y1}{x2-x1}

a. (3,2);(4,x); m=1

\frac{x-2}{4-3}=1  → x= (1)(4-3)+2 → 3

b. (b,-1);(2,-2); m=-1/2

\frac{-2-(-1)}{2-b}=\frac{-1}{2}  → -1= (\frac{-1}{2})(2-b) →  \frac{-1}{\frac{-1}{2} }-2 → 0

c. (5,d);(9,2); m=-3/4

\frac{2-d}{9-5}=\frac{3}{4}  →  d= (\frac{-3}{4})(9-5)-2 → 5

d. (-1/3,3/4);(h,5/6); m=7/12

\frac{\frac{5}{6}-\frac{3}{4}  }{h-\frac{-1}{3} }=\frac{7}{12}   →  \frac{5}{6}-\frac{3}{4}=  \frac{7}{12} ({h-\frac{-1}{3} })  →  \frac{-4}{21}

We get this equation with the original one:

y=mx+b

There are three  forms of linear equations:

point-slope form y2-y1=m(x2-x1)

standard form Ax + By + C = 0 or Ax + By = C

and slope-intercept form y=mx+b

4 0
3 years ago
This part two of the problem
vichka [17]

Answer:

d seems like the only one that would be correct

Step-by-step explanation:

lmk if this is wrong

4 0
2 years ago
Can someone help me with this math homework please!
sergeinik [125]

9514 1404 393

Answer:

  • 7/3
  • -3
  • y = 7/3x - 3

Step-by-step explanation:

1) The slope is given by the formula ...

  m = (y2 -y1)/(x2 -x1)

  m = (4 -(-3))/(3 -0) = 7/3

__

2) The y-intercept is the point where x=0:

  (x, y) = (0, -3) . . . . . y = -3

__

3) Then the slope-intercept equation is ...

  y = mx + b . . . . . . . line with slope m and y-intercept b

  y = 7/3x -3

4 0
3 years ago
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