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
12345 [234]
1 year ago
10

Four students were asked to write a ratio equivalent to - Their answers are

Mathematics
1 answer:
s344n2d4d5 [400]1 year ago
7 0

The most appropriate choice for ratio will be given by-

Jim did not write the correct equivalent ratio.

What is ratio?

Ratio is used to compare between two numbers of the same unit. Ratio determines how much one number is bigger as compared to other.

Suppose the ratio is a : b. a is called the antecedent and b is called the consequent.

Equivalent ratio of -\frac{4}{79}

Answer of Cristal = \frac{-4}{79} which is equal to -\frac{4}{79} .So answer of Cristal is correct

Answer of Esmeralda = -(\frac{4}{79}) which is equal to -\frac{4}{79}. So answer of Esmeralda  is correct

Answer of Jim = \frac{-4}{-79} which is equal to \frac{4}{79} .So answer of Jim is not correct

Answer of Marcus = \frac{4}{(-79)} which is equal to -\frac{4}{79}. So answer of Marcus is correct

So Jim did not write the correct equivalent ratio.

To learn more about ratio, refer to the link:

brainly.com/question/2328454

#SPJ13

Complete Question

Four students were asked to write a ratio equivalent to -\frac{4}{79}   Their answers are shown below.

Cristal          \frac{-4}{79}

Esmeralda  -(\frac{4}{79})

Jim                \frac{-4}{-79}

Marcus          \frac{4}{(-79)}

Which student did not write a ratio that is equivalent to -\frac{4}{79}  ?

You might be interested in
Talia works 6 hours per day on Fridays and Saturdays each week. She earns $8.20 per hour
Simora [160]

<u>Question 1 </u>

Talia works 6 hours on Friday and 6 hours on Saturday. Total Work = 6+6 = 12 hours.

Hourly Rate = 8.20 dollars per hour.

Gross Pay = (Total Work) x (Hourly Rate) = 12 x 8.20 = 98.40 dollars.

Hence, option D is correct i.e. 98.40 dollars.

<u>Question 2 </u>

Mikey worked 8 hours on Wednesday, 6 hours on Thursday and 7 hours on Friday.

Total Work = 8+6+7 = 21 hours.

Gross Pay = 187.95 dollars.

Hourly Rate = (Gross pay)/(Total work) = (187.95)/21 = 8.95 dollars per hour.

Hence, option A is correct i.e. 8.95 dollars per hour.

<u>Question 3 </u>

Nina's Hourly Rate for first 40 hours = 12.25 dollars per hour.

Overtime rate for after first 40 hours = 1.5 x 12.25 = 18.375 dollars per hour.

Total work = 46 hours.

Gross Pay = (Hourly rate)x(first 40 hours) + (Overtime rate)x(Excess time after first 40 hours)

Gross pay = (12.25 x 40) + (18.375 x 6)

Gross pay = 490 + 110.25

Gross pay = 600.25 dollars.

Hence, option A is correct i.e. 600.25 dollars.

<u>Question 4 </u>

Tip amount = 15 dollars.

Meal cost = 75 dollars.

Tip percentage = (Tip amount / Meal cost) x 100

Tip percentage = (15 / 75) x 100 = 20%

Hence, option B is correct i.e. 20%

<u>Question 5 </u>

Weekly Salary = 844 dollars.

Commision Rate = 4% = 0.04

Last week Sales = 3250 dollars.

Last week commission on sales = 0.04 x 3250 = 130 dollars.

Gross pay = Weekly Salary + Commission amount.

Gross pay = 844 + 130 = 974 dollars.

Hence, option C is correct i.e. 974.00 dollars.

5 0
3 years ago
A movie rental website charges $5.00 per month for membership and $1.25 per movie.How many movies did Andrew rent this month if
Oksanka [162]
So to start subtract $5 from $16.25 for the monthly membership
That gives you $11.25
So then you Just divide...
$11.25 divided by $1.25
which gives you 9
So bill rented 9 movies for the month

Hope this helped! :)
6 0
3 years ago
Solve the equation by graphing. If exact roots cannot be found, state the consecutive integers between which the roots are locat
zavuch27 [327]

Answer:

The equation contains exact roots at x = -4 and x = -1.

See attached image for the graph.

Step-by-step explanation:

We start by noticing that the expression on the left of the equal sign is a quadratic with leading term x^2, which means that its graph shows branches going up. Therefore:

1) if its vertex is ON the x axis, there would be one solution (root) to the equation.

2) if its vertex is below the x-axis, it is forced to cross it at two locations, giving then two real solutions (roots) to the equation.

3) if its vertex is above the x-axis, it will not have real solutions (roots) but only non-real ones.

So we proceed to examine the vertex's location, which is also a great way to decide on which set of points to use in order to plot its graph efficiently:

We recall that the x-position of the vertex for a quadratic function of the form f(x)=ax^2+bx+c is given by the expression: x_v=\frac{-b}{2a}

Since in our case a=1 and b=5, we get that the x-position of the vertex is: x_v=\frac{-b}{2a} \\x_v=\frac{-5}{2(1)}\\x_v=-\frac{5}{2}

Now we can find the y-value of the vertex by evaluating this quadratic expression for x = -5/2:

y_v=f(-\frac{5}{2})\\y_v=(-\frac{5}{2} )^2+5(-\frac{5}{2} )+4\\y_v=\frac{25}{4} -\frac{25}{2} +4\\\\y_v=\frac{25}{4} -\frac{50}{4}+\frac{16}{4} \\y_v=-\frac{9}{4}

This is a negative value, which points us to the case in which there must be two real solutions to the equation (two x-axis crossings of the parabola's branches).

We can now continue plotting different parabola's points, by selecting x-values to the right and to the left of the x_v=-\frac{5}{2}. Like for example x = -2 and x = -1 (moving towards the right) , and x = -3 and x = -4 (moving towards the left.

When evaluating the function at these points, we notice that two of them render zero (which indicates they are the actual roots of the equation):

f(-1) = (-1)^2+5(-1)+4= 1-5+4 = 0\\f(-4)=(-4)^2+5(-4)_4=16-20+4=0

The actual graph we can complete with this info is shown in the image attached, where the actual roots (x-axis crossings) are pictured in red.

Then, the two roots are: x = -1 and x = -4.

5 0
3 years ago
What is the decimal multiplier to decrease by 3.9%?
soldier1979 [14.2K]

Answer:

0.495

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Could u help me make sure its the right answer i can't get this wrong .
Black_prince [1.1K]

Answer:

12x + 6y = 102

5x - 6y = 34

17x = 136

x = 8

y = 1

5 0
3 years ago
Read 2 more answers
Other questions:
  • PLZ HELP 75 POINTS SHOW WORK
    6·2 answers
  • 7.5% of the box office receipts on a Friday night are $270. What are is the total length box office receipts
    10·1 answer
  • Someone please help me go get BRAILIEST!!!!!!!!!
    15·1 answer
  • Given m&lt;6=142 find the measure of each missing angle,give your reasoning
    6·1 answer
  • Point C is between points A and B on Find the missing length. AC = 12, AB = 34, CB = _____ a. 29 c. 28 b. 22 d. 32
    7·1 answer
  • The manager of Cups R’ us handed out 125 coupons to his customers on Monday, c coupons in Tuesday, and 220 coupons on the Wednes
    12·1 answer
  • Calculate the expected gain or loss for Stock ABC. Lose $25 Gain $5 Gain $45 Stock ABC 40% | 15% | 45% Stock JKL| 15% | 65% | 20
    12·1 answer
  • If xy + xb + ya + ab = 32 and x + a = 4, then x + b =​
    7·1 answer
  • Work out the lengths of side a and b give your answers to 1 decimal place <br> 8cm a 5cm
    6·1 answer
  • The floor plan of a proposed auditorium shows a stage that measures 1.75 inches in width . The scale of the floor plan is 1 in =
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!