Answer:
$8573.75
Step-by-step explanation:
The value of the car as a function of the number of years (t) is
V = $10,000(1.00-0.05)^t
which, after 3 years, comes to V = $10,000(1.00-0.05)^3 = $8573.75
what is the solution to this linear equation.
-4 + bx = 2x + 3(x + 1)
if b = 3 what is the solution?
A company sells widgets. The amount of profit, y, made by the company, is related to the selling price of each widget, x, by the given equation. Using this equation, find out what price the widgets should be sold for, to the nearest cent, for the company to make the maximum profit. y = -5x² + 194x - 990
Answer: 19.4
Step-by-step explanation:
Given
Profit is given in terms of the selling price
[tex]y=-5x^2+194x-900[/tex]
to get the maximum price, differentiate y w.r.t x
[tex]\frac{\mathrm{d} y}{\mathrm{d} x}=-5\times 2x+194[/tex]
Put [tex]\frac{\mathrm{d} y}{\mathrm{d} x}=0[/tex] to get maximum value
[tex]10x=194\\x=19.4[/tex]
Thus, the company must sell it at 19.4
help!, i honestly forgot this lol
Answer:
C. 21 to 28
Step-by-step explanation:
Two rectangular picture frames have the same area of 45 square inches but have different side lengths. Frame A has a length of 6 inches, and Frame B has a length of 7 inches. 1. Without calculating, predict which frame has the shorter width. Explain your reasoning. 2. Find the width that you predicted to be shorter. Show your reasoning.
9514 1404 393
Answer:
1. the longer frame (B) has the shorter width
2. the shorter width is 6 3/7 inches, area divided by length
Step-by-step explanation:
The relation between area, length, and width is ...
A = LW
Then the width is ...
W = A/L . . . . . inversely proportional to length
__
1. Since length and width are inversely proportional (when area is constant), the shorter width will be associated with the longer length. Frame B will have the shorter width.
__
2. The width of frame B is ...
W = A/L = (45 in²)/(7 in) = 45/7 in = 6 3/7 in
Find the median of the set of numbers.
17, 37, 39, 27, 38, 26, 28, 24, 40
23
27.2
28
30.7
if the base area of a cylinder is 15.6 square centimeters and the height is four centimeters what is the volume of the cylinder?
Answer:
Volume of the cylinder = 62.4 cm³
Step-by-step explanation:
Volume of a cylinder = area of base × height of the cylinder
Area of base = 15.6 square centimeters
Height of the cylinder = 4 centimeters
Volume of a cylinder = area of base × height of the cylinder
= 15.6 cm² × 4 cm
= 62.4 cm³
Volume of the cylinder = 62.4 cm³
I need these two questions answered (50 points)
Answer:
Equation for question number 1:
y = -6x -1
Equation for question number 2:
y = 6x
OR
y = 6x + 0
btw, if you want to know how to solve the equations by urself, the equation is y = mx + b
m = slope
b = starting point / intercept
hope this helps!
Plzzzz need help ASAP plsss
Combine the like terms to create an equivalent expression.
4t-t+2
Answer:
3t+2
Step-by-step explanation:
khan said so
People most likely need to take out a mortgage when they
a) have bad credit.
b) are making a large purchase.
c) are spending less than $1,000.
d) have legal problems.
FIRST ANSWER GETS BRAINLIEST ;)
Answer:
a or c
Step-by-step explanation:
Please help I don’t know how to answer !!!
WILL GIVE BRAINLIEST PLZ HELP
Is the second image right?
(the new line is the blue one)
Answer: based on f(x) + 4 no
Step-by-step explanation:
If a wheelchair-marathon racer moving at 13.1 miles per hour expends energy at a rate of 645 calories per hour, how much energy in calories would be required to complete a marathon race (26.2 miles) at this pace
Answer:
[tex]1290[/tex] calories
Step-by-step explanation:
Given: The racer moves at [tex]13.1[/tex] miles per hour expends energy at a rate of [tex]645[/tex] calories per hour.
To find: Energy in calories, required to complete a marathon race [tex]26.2[/tex] miles at this pace.
Solution: We have,
The racer moves at [tex]13.1[/tex] miles per hour.
The racer expends energy at a rate of [tex]645[/tex] calories per hour.
So, energy expended while moving [tex]13.1[/tex] miles [tex]=645[/tex] calories.
Now, energy expended while moving [tex]1[/tex] mile [tex]=\frac{645}{13.1}[/tex] calories.
So, energy expended while moving [tex]26.2[/tex] miles [tex]=\frac{645}{13.1}\times 26.2=645\times 2=1290[/tex] calories.
Hence, [tex]1290[/tex] calories of energy is required to complete a marathon race [tex]26.2[/tex] miles at this pace.
The wheelchair-marathon racer would need 1290 calories to complete the marathon race.
SpeedSpeed is the ratio of distance travelled to total time taken. It is given by:
Speed = distance / time
The speed of the racer is 13.1 miles per hour. To complete a 26.2 miles:
13.1 = 26.2 / t
t = 2 hours.
The racer expends energy at a rate of 645 calories per hour, for 2 hours:
Amount of calories = 645 calories per hour * 2 hours = 1290 calories
The wheelchair-marathon racer would need 1290 calories to complete the marathon race.
Find out more on speed at: https://brainly.com/question/4931057
HELP ME 15 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
false, true, false, true
What is the value of x? Four-fifths x minus StartFraction 1 Over 10 Endfraction = StartFraction 3 Over 10 EndFraction One-fourth StartFraction 8 Over 25 EndFraction Two-fifths One-half
Answer:
1/2Step-by-step explanation:
Given the expression
4/5 x - 1/10 = 3/10
We are to find the value of x
4/5 x = 3/10 + 1/10
4/5 x = 4/10
Cross multiply
4x * 10 = 5 * 4
40x = 20
x = 20/40
x = 1/2
The value of x is 1/2
Answer:
Its 1/2 :)
Step-by-step explanation:
help please (it has to be 20 more characters ignore)
Answer:
The value of g is 7.
Step-by-step explanation:
☆ Let's solve!
[tex] \: \: \: \: 3 + g = 10 \\ \frac{- 3 \: \: \: \: \: \: \: \: \: = - 3}{g = 7} [/tex]
Please please please help me with math
Answer:
30 dollars
Step-by-step explanation:
The y-intercept is 15 and the slope is 30
How?
slope = change in y/change in x
Can someone help me with this , thank you :)
At the end of a snow storm, Michael saw there was a lot of snow on his front lawn.
The temperature increased and the snow began to melt at a steady rate. The depth of
snow on Michael's lawn, in inches, can be modeled by the equation S = - 2t +20,
where t is the time, in hours, after the snow stopped falling. What is the x-intercept
of the equation and what is its interpretation in the context of the problem?
Answer:
The x-intercept of the function is 10 which represents the number of hours until all the snow has melted
Step-by-step explanation:
There were 0 inches of snow on the lawn after 10 hours, the x intercept of 10 represents the number of hours after the storm stopped when all the snow had melted.
-2t+20=S
-2t+20=0
-2t =-20
t=10
A coat that usually cost $120.00 is marked 1/3 off. What is the sale price of the coat?
Answer:
The sale price would be $80.00
Step-by-step explanation:
1/3 (33%) of $120 is $40.
$120 - $40 = $80
Mary Kate borrowed $8,000 at a 7% simple interest rate for 3 years. At the end of the three years, how much does she owe in total? *
Answer:I think its A
Step-by-step explanation:
Is the opposite of 32, is 32?
Answer:
Step-by-step explanation:
NO i think
Find all of the factors of 18 and all of the factors of 24. Then put the FOUR numbers that are common factors of 18 and 24 in the text box.
Answer:
18;1,2,3,6,9,18
24;1,2,3,4,6,8,24
com;1,2,3,6,
Step-by-step explanation:
8 is 32 times as many as 4
32 is 4 times as many as 8
4 times as many as 32 is 8
8 times as many as 8 is 232
Identify the constant of proportionality
Solve for X and solve for Y?
Answer:
[tex] x=3\sqrt 5\\[/tex]
[tex]y = \sqrt {126}[/tex]
Step-by-step explanation:
By geometric mean property:
[tex]x = \sqrt{9 \times 5} = \sqrt{45} = 3 \sqrt{5} \\ \\ by \: pythagoras \: theorem \\ \\ {y}^{2} = {9}^{2} + {x}^{2} \\ \\ {y}^{2} = {9}^{2} + {(3 \sqrt{5}) }^{2} \\ \\ {y}^{2} = 81 + 45 \\ \\ {y}^{2} = 126 \\ \\ y = \sqrt{126} [/tex]
what is y = -2x +4, x =3.5
Answer:
(3.5, -3)
or
y = -3
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Step 1: Define
y = -2x + 4
x = 3.5
Step 2: Evaluate
Substitute in x: y = -2(3.5) + 4Multiply: y = -7 + 4Add: y = -329-30. URGENT! WILL GIVE BRAINLIEST! I've reposted this many times and no one answered, please help. I will mark you Brainliest if you answer both and leave an explanation, THANK YOU!
Answer:
angle B = 90
Step-by-step explanation:
BC is a straight line which equals to 180 and C is 90 so you would take 180 minus 90 and would get 90
Point A is at (-2,4) and point B is at (7,3). What is the midpoint of line segment AB
Answer:
(2.5,3.5)
Step-by-step explanation:
Answer:
(2.5, 3.5)
Step-by-step explanation:
I will mark you as brainliest please help quickly I have 15 minutes!
Answer:
Blue line: b value: 4 m value: -1/3 Inequality: < Red Line: b value: 2 m value: 2 Inequality: >
Step-by-step explanation:
4=-1/3(0)+b
4=b
0=2(-1)+b
0=-2+b
2=b
