1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tigry1 [53]
3 years ago
9

Equivalent ratio

Mathematics
1 answer:
Svetradugi [14.3K]3 years ago
6 0

Answer:

D.) 1:6

E.) 8:48

Step-by-step explanation:

You might be interested in
Allison is working two summer jobs, making $12 per hour lifeguarding and $8 per hour washing cars. Last week Allison worked 3 mo
timama [110]

Answer:

Allison worked 6 hours lifeguarding and 3 hours washing cars.

Step-by-step explanation:

Let

Number of hours Allison worked lifeguarding last week = x

Number of hours Allison worked washing cars last week = y

1. Last week Allison worked 3 more hours lifeguarding than hours washing cars hours, then

x-y=3

<u>Lifeguarding:</u>

$12 per hour

$12x in x hours.

<u>Washing cars:</u>

$8 pere hour

$8y in y hours.

2. Allison earned a total of $96, hence

12x+8y=96

You get the system of two equations:

\left\{\begin{array}{l}x-y=3\\ \\12x+8y=96\end{array}\right.

Plot the graphs of these two equations (see attached diagram). These line intersect at point (6,3), so Allison worked 6 hours lifeguarding and 3 hours washing cars.

3 0
3 years ago
The probability density function of the time you arrive at a terminal (in minutes after 8:00 A.M.) is f(x) = 0.1 exp(−0.1x) for
Blababa [14]

f_X(x)=\begin{cases}0.1e^{-0.1x}&\text{for }x>0\\0&\text{otherwise}\end{cases}

a. 9:00 AM is the 60 minute mark:

f_X(60)=0.1e^{-0.1\cdot60}\approx0.000248

b. 8:15 and 8:30 AM are the 15 and 30 minute marks, respectively. The probability of arriving at some point between them is

\displaystyle\int_{15}^{30}f_X(x)\,\mathrm dx\approx0.173

c. The probability of arriving on any given day before 8:40 AM (the 40 minute mark) is

\displaystyle\int_0^{40}f_X(x)\,\mathrm dx\approx0.982

The probability of doing so for at least 2 of 5 days is

\displaystyle\sum_{n=2}^5\binom5n(0.982)^n(1-0.982)^{5-n}\approx1

i.e. you're virtually guaranteed to arrive within the first 40 minutes at least twice.

d. Integrate the PDF to obtain the CDF:

F_X(x)=\displaystyle\int_{-\infty}^xf_X(t)\,\mathrm dt=\begin{cases}0&\text{for }x

Then the desired probability is

F_X(30)-F_X(15)\approx0.950-0.777=0.173

7 0
3 years ago
What what I 34 divisible by
just olya [345]
Its can be divisible by 2
4 0
3 years ago
If N is an acute angle and sin N=12over13, evaluate cos N and tan N.
zheka24 [161]
Cos N= 5/13, and tan N=12/5.
8 0
3 years ago
What is a formula for length of a shadow?
professor190 [17]

A simple calculator for shadow casting: height of the Sun, height of the object or shadow length, as well as the ratio between shadow length and object height can be determined. ... Object height and shadow length have the same unit, e.g. feet or meters. See also shadow length and direction by coordinates and time.

5 0
3 years ago
Other questions:
  • if 3/5 of the wall is made from brick how do you determine the height of the brick portion of the wall
    6·1 answer
  • How do you solve the equation 0.4(2x+0.5)=3[0.2x+(-2)]-4
    9·2 answers
  • Tyler's family is using a shipping trailer that is 5 feet tall 4 feet wide and 12 feet long to load boxes of apples in each box
    8·1 answer
  • 64/9 to a mixed number
    6·1 answer
  • I need help with both of them please!( Sample questions 13 and 14)
    7·1 answer
  • The length of a rectangular frame is 8 cm more than the width. The area inside the frame is 65 square cm. Find the width of the
    15·1 answer
  • The circumference of a circle is 257 cm. What is the area,<br> in<br> square<br> centimeters
    12·2 answers
  • Formulate the indicated conclusion in nontechnical terms. Be sure to address the original claim.
    15·1 answer
  • Given right triangle ABC with altitude BD is drawn to hypotenuse AC. If AB=5 and AD=1, what is the length of AC ? (Note: the fig
    9·1 answer
  • 7 - 9 + (9 - 5)^2-4x 6/-6+8-3x10? Can y'all help me? I know I just asked but I'm really bad at math!!!!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!