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3 years ago

4. An attorney charges $250 for a

Mathematics

1 answer:

KIM [24]3 years ago

5 0

Answer:

The attorney worked for 32.5 hours in order for his total bill to be $3,500.

Step-by-step explanation:

Let's set up an equation with some variables:

$h$ = hours of service

$T$ = total bill

$T=100h+250$

Plugging in our given values, we get:

$3500=100h+250$

And solving for $h$ , the hours the attorney worked, we get:

$h=32.5$

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What is the value of x? 2x + 10 3x + 4 x + 11

ivolga24 [154]

Answer:

do u want three specific x values?

Step-by-step explanation:

if yes then you have x= -5, x= -4/3 and x=-11

6 0

3 years ago

PLEASE HELP:

Gnom [1K]

15 mi/h= 15mi/60 min= 1/4 (mi/min)

x is original speed (mi/min)
t is original time
x*t =260

(x+1/4)=5x/4 is new speed
t-20 - new time
(x+1/4)(t-20)=260

xt = (x+1/4)(t-20)
xt=xt + t/4 - 20x - 5
t/4=20x+5
t=80x +20

We can substitute t=80x +20 into equation x*t =260
x*(80x+20)=260
80x²+20x-260=0
4x²+x-13=0

D=b² - 4ac = 1+4*4*13= 209
x=(-1+/-√209)/2*4
x=1.68 mi/min

1.68mi/min * 60 min/1h≈100 mi/h

Check
260/100=2.6h time with old speed
260/(115)=2.26 h time with new speed
2.6-2.26 = 0.34 h difference between old and new time
0.34h*60min/1h≈20 min difference between old and new time in minutes

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3 years ago

Which pair of lines are perpendicular

Gnesinka [82]

The answer is A. A perpendicular equation will have the opposite and reciprocal slope as the original equation.

Once converted to the slope-intercept form of y = mx+b, we find the two equations for A are y = 2x-1 and y = (-1/2)x + 3/2. The opposite reciprocal of the first equation's slope (m in the equation form given) is -1/2, which as you can see if the slope of the other equation.

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4 years ago

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A club with 50 college students is doing volunteer work this semester. Each student is volunteering at one of four locations. He

Yuliya22 [10]

Answer: Our required probability is 0.58.

Step-by-step explanation:

Since we have given that

Number of students worked in Nursing home = 11

Number of students worked in Tutoring center = 13

Number of students worked in Soup kitchen = 8

Number of students worked in Library = 18

Total number of students = 50

Since 3 students are selected from the club.

We need to find the probability that none of the three students volunteer at the soup kitchen.

So, Remaining students would be 50-8 = 42

So, probability that none of three students at the soup kitchen is given by

$\dfrac{^{42}C_3}{^{50}C_3}\\\\=0.58$

Hence, our required probability is 0.58.

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4 years ago

To E F A. Triangle A B. Triangle B C. Triangle C D. Triangle D

iogann1982 [59]

Answer:

B,D,and F

Step-by-step explanation:

I hope this helps you

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3 years ago