Mathematics College

3. Joe has to pay $600 rent. He only has 80% of the money. If Joe takes home $6 per hour, how many hours must he work to collect the rest of the rent money ?

Answers

Answer 1

Answer:

20 hours

Step-by-step explanation:

600 x .80 = 480

600 - 480 = 120

120 / 6 = 20

Answer 2

he has to work 20 more hours

Related Questions

Choose the function whose graph is a parabola.
O y=x+91
O y=3
O y=x2-10
O y=-2x

Answers

Answer:

O y=x^2-10

Step-by-step explanation:

x^2 = parabola

the rest are just linear equations

If that first variable is meant to be x squared, than C. Parabolas always have a squared variable. Sometimes they don’t have a y-intercept because it goes through (0,0), but it will always have an x. To be a parabola it will always have at least x squared

One-half a number minus 6 is 4

Answers

Answer:

the answer is 20

20/2 = 10

10- 6 =4

8. A bakery is collecting data to investigate how changing the price charged for a loaf of bread
affects the bakery's daily profit. The graph shows the data the bakery has collected.
Bread Price vs. Daily Profit
1000
800
600
.
Daily Profit (Dollars)
.
.
400
.
.
200
0
1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00
Price for One Loaf of Bread (Dollars)
Which quadratic function is the BEST model for the data?
A
8(1-4) - 800
В.
86
4) - 800
С
20001 - 1) --- 800
D
3000
4)- 800

Answers

The function that best models for the data is y = -200 (x-4)^2 + 800.

What is a function?

A function is a mathematical expression that describes how factors are related. In this case, how the price is related to the profit.

How to determine if a function models the data?

The best way to determine this is to solve the expression and verify if the answer is correct.

For example, we know that at 4 (x) dollars, the daily profit is $800 (y). Let's now the different options:

y= -8 (x+4)^2 + 800y= -8 (4+4)^2 + 800y= -8 (8)^2 + 800y= -8 (36) + 800y=-8 (288) + 800y= -2304 + 800y= -1504

y= -8 (x-4)^2 + 800y= -8 (4-4)^2 + 800y= -8 (0)^2 + 800y= -8 (0) + 800y= 0 + 800y= 800

y= -200 (4+4)^2+ 800y= -200 (8)^2 + 800y= -200 (36) + 800y= -200 (36) + 800y= -7200 + 800y= -6400

y= -200 (x-4)^2 + 800y= -200 (4-4)^2 + 800y= -200 (0)^2 + 800y= -200 (0) + 800y= 0 + 800y= 800

This means B and D are possible options, however, when verified with other results such as $6 the correct one is option D.

Learn more about bakery in: https://brainly.com/question/16421624

The quadratic equation is given by y = -200x² + 1600x - 2400.

Quadratic equation formula

The standard form of the quadratic equation is:

y = ax² + bx + c

Where a,b,c are constants.

Let y represent the daily profit for x bread price.

At point (2, 0):

0 = a(2)² + b(2) + c

4a + 2b + c = 0 (1)

At point (4, 800):

800 = a(4)² + b(4) + c

16a + 4b + c = 800 (2)

At point (6, 0):

0 = a(6)² + b(6) + c

36a + 6b + c = 0 (3)

From all the equations:

a = -200, b = 1600, c = -2400

The quadratic equation is given by y = -200x² + 1600x - 2400.

Find out more on quadratic equation at: https://brainly.com/question/1214333

1.Martin runs 3/4 mile three days a week. How many miles does he run in four weeks?
2.Teresa measures 5/8 foot of ribbon for a costume. She needs seven pieces of ribbon with that same length. What is the total length of ribbon Teresa needs to make all the costumes?
3.Oscar spent 2/3 hour each night doing homework for five nights this week. How many hours of homework did Oscar complete this week?
4.Alexandra is following a recipe that requires 3/4 cup of water. She needs to make 10 servings. How many cups of water does Alexandra need?

WHO EVER ANSWERS GETS 75 POINTS.

Answers

Answer:

1) 9 miles. 2) 4.375. 3) 6. 4) 27.973.

A water tower 30 m tall is located at the top of a hill. From a distance of D = 125 m down the hill, it is observed that the angle formed between the top and base of the tower is 8°. Find the angle of inclination of the hill. Round your answer to the nearest tenth degree.

Answers

Answer:

the angle of inclination of the hill is 46.56°

Step-by-step explanation:

Given the data in the question;

Just as illustrated in the diagram below

so to find the angle of inclination of the hill;

sinA/30 = sinB/125

since angle BAC is 8°

we substitute

sin8°/30 = sinB/125

sinB = ( sin8°/30 ) × 125

B = sin⁻¹ ( ( sin8°/30 ) × 125 )

B = sin⁻¹ ( 0.004639 × 125 )

B = 35.44°

so since the some of a the angles of a triangle is 180;

A + B + C = 180

8° + 35.44° + C = 180

C = 180 - ( 8° + 35.44° )

C = 136.56°

Hence, Angle of inclination x will be;

x = 136.56° - 90°

x = 46.56°

Therefore, the angle of inclination of the hill is 46.56°

Evaluate the expression if a = -2, b= 7. and c= -3
ac + b=

Answers

Answer:

Step-by-step explanation:

plug in the numbers

-2(-3) + 7 = ?

6 + 7 = ?

Hope this helped! Have a nice day! Plz mark as brainliest!!!

-XxDeathshotxX

Marcy sees a game, Rolling-in-gold, in which a constant rolls in a cube with five red sides one gold side. A player wins the game by rolling a gold. Is rolling-in-gold a fair game? If not, how could the game be made fair? Explain

Answers

Answer:

It's not fair, because it's only a 1 in 6 chance of rolling gold. It would be fair if 3 of the 6 sides were gold.

Maria claims that ΔABE ≅ ΔACD .

Select two of the transformations or series of transformations that support Maria's claim and maps ΔABE to ΔACD.

A dilation with a scale factor of 3 about point A.

A dilation with a scale factor of 2 about point B.

A dilation with a scale factor of 2 about point A followed by a translation of 4 units downward.

A dilation with a scale factor of 3 about point B followed by a translation of 4 units downward.

A dilation with a scale factor of 3 about point A followed by a translation of 8 units to the right.

A dilation with a scale factor of 2 about point B followed by a translation of 8 units to the right.

Answers

Answer:

Two transformations or series of transformation that support Maria's claim and Maps ΔABE to ΔACD are;

A dilation with a scale factor of 3 about point A

A dilation with a scale factor of 3 about point B followed by a translation of 4 units downwards

Step-by-step explanation:

Using an online source, we have;

ΔABE ~ ΔACD

The coordinate of triangle ΔABC are;

A(-6, 4), B(-6, 2), and E(-2, 2)

The coordinate of triangle ΔACD are;

A(-6, 4), C(-6, -2), and D(6, -2)

∠A ≅ ∠A by reflexive property

Segment BE ║Segment CD and segment DE and segment AE are collinear on transversal AD

∴ ∠E ≅ ∠D Corresponding angles

∴ ΔABE ~ ΔACD by Angle-Angle rule of congruency

Segment AB on ΔABE and segment AC on triangle ΔACD are corresponding sides on both triangles

The length of segment AB on ΔABE = 2 units

The length of segment AC on ΔACD = 6 units

The scale factor of dilation, SF = (The length of segment AC)/(The length of segment AB)

∴ SF = (6 units)/(2 units) = 3

Therefore, ΔABE maps to ΔACD by either of the following;

1) A dilation with a scale factor of 3 about point A

2) A dilation with a scale factor of 3 about point B followed by a translation of 4 units downwards.

What is the probability of getting a vowel if you randomly pick a letter from the English alphabet?

Answers

60% because theres 6 vowels

Zandi pays R19,96 for 4 bars of chocolate, How much will she pay for for 9 bars

Answers

Answer:

R4491

Step-by-step explanation:

How many quarter inches long is 7 3/4?

Answers

Answer:

31 quarter inches long

Step-by-step explanation:

First, there are four quarters in a fraction, so we have to do 7 x 4 to get 28. Then, you have to add 3 + 28 to get your answer, because of the remaining 3/4

Hope this helps!

Need help with this one:)

Answers

Answer:

1024 sq inches

Step-by-step explanation:

Surface area is the area of all added together.

So: 2(24 * 10 + 10 * 8 + 24 * 8)

2(240 + 80 + 192)

Answer: 1024

A team of communication scholars conducted a study on the effects of media consumption on aggressive behavior. Forty-eight subjects stayed in a lab for two days. Twenty-four of the subjects are randomly assigned to a condition in which they are not permitted to consume any media that period. The other twenty-four are allowed to consume media whenever they want. At the end of the two days, the subjects finish a task that involves viewing the same tv episode, then identifying as many aggressive behaviors as possible.
For each of the studies, please indicate the following:
1. What is the independent variable? The effects of media consumption
2. Is there more than one IV? Abstinence from Media Consumption and Media Consumption Continued Use
3. Is the IV a continuous or categorical variable? See Above
4. What is the dependent variable? (for correlation, list all variables here and ignore the IV questions)
~ The dependent variable is aggressive behavior
5. Is the DV a continuous or categorical variable ? Continuous ~ measured numerically, has an infinite number of possible values
6. What type of design is being used? Experimental Design
7. What is the appropriate statistical test given the types of variables in this example?

Answers

Answer:

A.) The Independent variable is media consumption. ;

B.)

1.) Abstinence from media consumption

11.) Continued consumption of media

C.)

Categorical Variable ;

D.)

Dependent variable is Aggressive behavior ;

E.)

The dependent variable is a continous numerical variable

F.)

Experimental Design.

Step-by-step explanation:

The Independent variable are those variables which causes a change in the measured or dependent variable.

The dependent t variable is the measured variable whose change is triggered by the independent variable.

Categorical Variables are non-numeric labels while the quantitative variables are numeric labels.

Experimental designs usually divides subjects into two or more treatment groups whrebt the effects of applied treatment is observed across the different groups.

Find the value of x
NEED HELP ASAP PLS NO FILE DROPS OR I WILL REPORT THANKS

Answers

Answer:[tex]x=15[/tex]

Step-by-step explanation:

Angles that are opposite from each other are going to be the same in this case.

Let's plug in 15 into x

[tex]4(15)+8\\60+8\\68[/tex]

the quotient of nine more than eight times a number and seventeen

Answers

Answer:

x < -1

Step-by-step explanation:

Let the unknown number be x

nine more than sum of eight times a number and seventeen, is expressed as;

9 > 8x + 17

Subtract 17 from both sides

9 - 17 > 8x+17-17

-8 > 8x

8x < -8

Divide both sides by 8

8x/8 < -8/8

x < -1

Hence the quotient is x < -1

What is the value of x in the figure below?
A. 85°
B. 32°
C. 27°
D. 30°

Answers

X is equal to the number 30

Find x.

(Someone pls help)

Answers

x = 3 because x and 3 are vertical angles and vertical angles are always equal

2x+ 20 + 3x +40 =
60 + 5X

Answers

First answer: 160
Second answer: 300

double the second number, the sum is 34."
a. Write an equation that represents this clue. Then, find two possible pairs of
numbers Diego could be thinking of.
b. Diego then says, "If we take half of the first number and double the second, the
sum is 14."
Write an equation that could represent this description.
c. What are Diego's two numbers? Explain or show how you know. A coordinate
plane is given here, in case helpful.
20
18
16
14
12
second number
10
8
6
4
2
2 4 6 8 10 12 14 16 18 20
first number

Answers

First number is the answer

Answer:

a.) 3x+2y=34 is the equation. 2 pairs could be 10,2 and 8,5.

b.) .5x+2y=14

c.) 8,5

Step-by-step explanation:

because both 8 and 5 work in both equations 3(8)+2(5)=34

.5(8)+2(5)=14

A easy question so you get points.

Who won the presidential election
A. Donald Trump
B. Bidden Harris

Answers

Answer:

This recent election its Biden.....

lol thx

Follow me!!!!

Answer:

Biden Harris

Step-by-step explanation:

Roberto's parents opened a savings account for him by depositing $250 on his birthday. The account earns simple interest at an annual rate of 5%. How much will be in Roberto's account after 5 years

Answers

Answer:1250

Step-by-step explanation:250x5=1250

6.5 ÷ ___________ = 0.065

Answers

Answer: 6.5 ÷ 100 = 0.065

6.5 x 1 = 0.065 this is the answer

you have $63.50. you earn additional money by raking leaves. you purchase a sweatshirt $44.99 and you have $53.51 left. how much money did you earn raking leafs?

Answers

$93.50 is the answer

What is the area of the rectangle above?
A.
84 square units
B.
19 square units
C.
38 square units
D.
78 square units

Answers

=13 x 6
=78 unit squares

Look at highlighted one. Help fast

Answers

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write a multiplication equation and a division equation that represents the question how many 3/8 are in 5/4

Answers

Answer: 3

Step-by-step explanation: double the 5 and the 4(to have the same denominator as the 8)

Caroline earns $139.50 for 6 hours of work. If she makes a constant hourly wage, which table represents the relationship between the number of hours she works and her total earnings?

Answers

Answer:

Table A.

Step-by-step explanation:

$139.50 / 6 hours = $23.25 an hour

1 hour of work = $23.25 earned