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
ale4655 [162]
4 years ago
10

Esther is participating in a walk-a-thon. She will raise 5 dollars for her charity for each lap she walks.

Mathematics
2 answers:
avanturin [10]4 years ago
6 0

Answer:

independent variable = number of laps;

dependent variable = number of dollars​

Step-by-step explanation:

If we were to put this information into a slope-intercept form equation, the equation would be: y = 5x (dollars raised = 5 dollars per lap walked). In this case, we are going to use the variables l and d instead of x and y, respectively. The equation instead of being y = 5x, it is going to be d = 5l. In the slope-intercept form X will always be the independent variable and y the dependent variable, because the number we get for Y totally depends on what you plugged in for X. In this equation, l is the independent variable (the number of laps she walks) and d is the dependent variable (number of dollars).

SashulF [63]4 years ago
5 0

Answer:

D. independent variable = number of laps; dependent variable = number of dollars

Step-by-step explanation:                                                                                                                                              

I got it right

You might be interested in
Can someone help me with these questions and show work please and thank you
attashe74 [19]

Answer:

11. 78

12. 4x² - 3x - 1

Step-by-step explanation:

11. Sum of n whole numbers = ½(n² + n)

Multiply

½*n² + ½*n

= n²/2 + n/2

To find the sum of the first 12 whole number, substitute 12 for n into the equation.

= 12²/2 + 12/2

= 144/2 + 12/2

= 72 + 6

= 78

12. Area of trapezoid = ½(a + b)*h

Where,

a = 5x - 4

b = 3x + 2

h = x + 1

Area = ½(5x - 4 + 3x + 2)*(x + 1)

Area = ½(8x - 2)*(x + 1)

Area = ½[8x(x + 1) -2(x + 1)]

= ½[8x² + 8x - 2x - 2]

Add like terms

= ½(8x² - 6x - 2)

= ½(8x²) - ½(6x) - ½(2)

= 4x² - 3x - 1

6 0
3 years ago
Wayne is mixing paint.
LuckyWell [14K]

Answer:

176. Multiply 6 by 2 thirds.

Step-by-step explanation:

4 0
3 years ago
Please helpppppppppppp
morpeh [17]

Answer:

7.7 km

Explanation:

Use cosine rule as here given two sides and one angle.

Cosine rule states:

a² = b² + c² - 2bc cos(A)

While solving, treat a = 7.5 km as to that opposite angle is given of 68°

then b = missing side, c = 5.2 km, A = 68°

Applying rule:

7.5² = b² + 5.2² - 2(b)(5.2) cos(68)

56.25 = b² + 27.04 - 3.8959b

56.25 - 27.04 = b² - 3.8959b

b² - 3.8959b = 29.21

b² - 3.8959b - 29.21 = 0

apply quadratic equation, Here [a = 1, b = - 3.8959, c = -29.21]

\sf b = \dfrac{ -b \pm \sqrt{b^2 - 4ac}}{2a} \quad\:when \:\ ax^2 + bx + c = 0

\sf b = \dfrac{ -(-3.8959) \pm \sqrt{(-3.8959)^2 - 4(1)(-29.21)}}{2(1)}

\sf b = 7.69 291 \quad or \quad b = -3.797

\sf b = 7.7 \quad (rounded \ to \ nearest \ tenth)

As length cannot be negative. Hence the value of b is only 7.7 km

7 0
2 years ago
Read 2 more answers
Find the length of k.
iren2701 [21]

Step-by-step explanation:

K=4

I think so

have a great day ahead

7 0
3 years ago
Read 2 more answers
R(s to the power of 2)(t) when r=2, s=3, and t=5<br> Plzzz help
harina [27]

Answer:

90

Step-by-step explanation:

2(3)²(5)

2(9)(5)

18(5) = 90

5 0
3 years ago
Other questions:
  • The two triangles below are similar. Which pair are corresponding sides?
    12·2 answers
  • A movie rental service is $5 a month after a one time start up fee of $60. Wrote an equation in slope-intercept form modeling th
    7·1 answer
  • It was 96 kilometers from perry to medford. David raced to medford and idled back. If the round trip took 8 hours, what was his
    6·2 answers
  • 8(−5d−9)−3(−6d+10) in simplest terms
    14·2 answers
  • Brainlist and thanks if correct answer is screen shot
    13·2 answers
  • Need help on this question ASAP.
    14·1 answer
  • 0.25 to 0.5 Find the percent of change. Round to the nearest tenth of a percent if necessary.
    11·2 answers
  • The volume of a cube is 710cm3 work out the length of its side rounded to 1 decimal place​
    10·1 answer
  • A number c divided by 9 is less than or equal to -23 .
    14·1 answer
  • Virgil has 1/6 of a birthday cake left over. He wants to share the leftover cake with 3 friends. What fraction of the original c
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!