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
Nutka1998 [239]
4 years ago
7

Wally is playing with his toy robot. The robot's battery is 80% full when he starts playing with it. The battery drains to 74% a

fter Wally plays with the robot for 40 minutes. If t represents the time elapsed in minutes and l represents the battery level, which of the following equations can be used to model this situation?
A. l = -0.15 + 80t
B. l = -0.15t + 80
C. l = 80t + 0.15
D. l = -0.15t - 80
Mathematics
2 answers:
kotegsom [21]4 years ago
6 0
The answer is D .
For your question
posledela4 years ago
3 0

Answer:

B. l = -0.15t + 80

Step-by-step explanation:

From the options we can see that the relation between the battery level (I) and the time elapsed (t) is modeled by the equation of a line, that is:

I = a*t + b

where a and b are some constants, I is in % and t is in minutes.

At t = 0 (when Wally starts to play) the battery is 80%, that is:

80 = a*0 + b

80 = b

At t = 40 minutes the battery is 74%, then:

74 = a*40 + 80

74 - 80 = a*40

-6 = a*40

-6/40 = a

-0.15 = a

Then, the equation is I = -0.15*t + 80

You might be interested in
Please include work!
aleksandrvk [35]

Answer:

A) y = x^2 -1

B) -y = 2x^2 +1  We multiply B) by -1

B) y = -2x^2 -1

We can then say x^2 -1 = -2x^2 -1

3 x^2 = 0

x = 0

************* Double-Check: ******************

Equation A) y = -1 and

Equation B) y = -1

Step-by-step explanation:

5 0
4 years ago
PLEASE HELP
Gnesinka [82]

ANSWER

D

Step-by-step explanation:

d=√((x_2-x_1)²+(y_2-y_1)²)

3 0
3 years ago
Read 2 more answers
(8, 1) and (-1, 10)<br> Slope
gizmo_the_mogwai [7]

Answer:

<h2>The answer is 1</h2>

Step-by-step explanation:

The slope of the line between two points can be found by using the formula

m =  \frac{ y_2 - y _ 1}{x_ 2 - x_ 1}

where

(x1 , y1) and (x2 , y2) are the points

From the question is points are

(8, 1) and (-1, 10)

Substitute the values into the above formula and solve for the slope

That's

m =  \frac{10 - 1}{8 + 1}  \\  =  \frac{9}{9}   = 1

We have the final answer as

<h3>1 </h3>

Hope this helps you

7 0
3 years ago
What two number multiply to 24 and add to -11
enot [183]

Answer:

8 and 3

Step-by-step explanation:

Brainliest Please

4 0
3 years ago
Read 2 more answers
Suppose that G(X) = F(x+ 9). Which statement best compares the graph of
coldgirl [10]

Answer: Option D

Step-by-step explanation:

By definition if we have a function F (x) and perform a transformation of the form

G (x) = F (x + c)

Then it is true that:

If c is negative the graph of G(x) will be equal to the graph of F(x) displaced horizontally c units to the right

If c is positive, the graph of G(x) will be equal to the graph of F(x) displaced horizontally c units to the left.

Note that in this case the transformation is:

G (x) = F (x + 9)

Then c = 9 and c> 0

Therefore the graph of G(x) will be equal to the graph of F(x) displaced horizontally <em>9 units to the left</em>

The answer is the option D.

5 0
4 years ago
Read 2 more answers
Other questions:
  • Two guy wires support a cell tower. Both guy wires touch the ground in the same place, 14.5 m away from the base of the tower. O
    15·1 answer
  • I confused a lot plz help
    8·2 answers
  • carinas cars is having a 25 % off sale.write an expression that can be used to find the sale price of any car on the lot:
    9·2 answers
  • E varies directly with the square root of C. If E=40 when C=25 find: E when C= 49
    13·2 answers
  • A shipping company processed 72,124 packages this month. If this is 23.5% more than last month, how many packages did they proce
    5·1 answer
  • Tim earns $31 after 2 hours, $46.5 after three hours,
    14·1 answer
  • Jogging burns 21 calories in 10 minutes determine how many calories are burned per hour?
    8·2 answers
  • Amanda slept for 1/3 of the day. She played with her friends for 1/5 of the day. She spent the rest of the day working on a scho
    9·1 answer
  • Get this right to earn 100+ points (IM SERIOUS)
    5·1 answer
  • Name the property shown in the equation: 4 x (5 + 6) = (4 x 5) + (4 x 6)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!