Answer:
option A is correct
75 − s = c
20s + 30c = 1,870
Step-by-step explanation:
The question is not complete.
Here is a complete form
"A software company is selling a new game in a standard edition and a collector's edition the box of the standard edition has a volume of 20 cubic inches and the box for the collector's edition has a volume of 50 cubic inches 30 cubic inches the company received an order for 75 copies of the game, and the total volume of the order to be shipped is 1,870 cubic inches. Which of the following systems of equations can be used to determine the number of standard edition games, s, and collector’s edition games, c, that were ordered?"
s+c=75
75 − s = c
20s + 30c = 1,870
the options are
A. 75 − s = c
20s + 30c = 1,870
B. 75 − s = c
30s + 20c = 1,870
C. s − c = 75
25(s + c) = 1,870
D. s − c = 75
30s + 20c = 1,870
In which choice is y a function of x?
Answer:
First choice
Step-by-step explanation:
Check if a relation is a function by looking at the x's.
No repeated x's? Then it's a function.
Repeated x's but the y is the same y both times? It's a function.
Repeated x's and different y's? NOT A FUNCTION.
see image
Which numbers are factors of 15? help me out here!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
hello
they are
1 - 3 - 5 and 15
Step-by-step explanation:
Which logarithmic equation is equivalent to 25 = 32?.
The logarithmic function is the inverse of the exponential function. The logarithmic function that is equivalent to 2⁵ = 32 is log₂32=5.
What is the Logarithm function?
A log function is a way to find how much a number must be raised in order to get the desired number.
[tex]\rm a^c=b[/tex] can be written as [tex]\rm log_ab=c[/tex].
where a is the base to which the power is to be raised,
b is the desired number that we want when power is to be raised,
c is the power that must be raised to a to get b.
Given to us
2⁵ = 32
As we know that we can convert a number powered to another number therefore exponential function into a log function, thus,
[tex]\rm 2^5=32\\\\log_25=5[/tex]
Hence, The logarithmic function is the inverse of the exponential function. The logarithmic function that is equivalent to 2⁵ = 32 is log₂32=5.
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What is the LCM of 9 and 18
Answer:
18
Step-by-step explanation:
product of prime factors
9=3^2
18=2*3^2
LCM of 9 and 18 = 2*3^2
=18
Will give thanks, five stars, and brainliest. I already answered it but wanted to check my answer to see if I got it right. Help is appreciated. Please and thanks.
Answer:
Step-by-step explanation:
The best way to check a question like this one is to graph it. I've done that for you. The red line is the parent function; the blue line is parent shifted 4 units left.
Yes, you are right.
A parabola has focus (5,7) and directrix y=0(the X-axis). Write an equation that says point (x,y) is on the
parabola.
Answer:
Step-by-step explanation:
focus of the parabola is (2,0) and directrix is x=-2. Here,a=2.So, Equation becomes, y2=4∗2x⇒y2=8x, which is the required equation of parabola.
The equation of a parabola with the given focus and directrix is x²-10x+74=14y.
What is an equation of a parabola?A parabola refers to an equation of a curve, such that a point on the curve is equidistant from a fixed point, and a fixed line
Given that, a parabola has focus (5,7) and directrix y=0.
When the focus (h, k) of a parabola and the equation of the directrix y = c are given, the equation of the parabola is given by (x-h)²+k²-c²=2(k-c)y
Here, y=c=0
Now, (x-5)²+7²-0²=2(7-0)y
x²-10x+25+49=14y
x²-10x+74=14y
Therefore, the equation of a parabola is x²-10x+74=14y.
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Solve system of equations
3x+6y=18
X+3y=15
Answer:
x = - 12, y = 9
Step-by-step explanation:
Given the 2 equations
3x + 6y = 18 → (1)
x + 3y = 15 → (2)
Multiplying (2) by - 3 and adding to (1) eliminates the term in x
- 3x - 9y = - 45 → (3)
Add (1) and (3) term by term to eliminate x
- 3y = - 27 ( divide both sides by - 3 )
y = 9
Substitute y = 9 into either of the 2 equations and evaluate for x
Substituting into (2)
x + 3(9) = 15
x + 27 = 15 ( subtract 27 from both sides )
x = - 12
Solution is (- 12, 9 )
a. Describe the three ways in which two lines may be related.
b. Give examples from the real world to illustrate each of the relationships described in part a.
a. Which of the following is the correct way to relate two lines? Select all that apply.
a.parallel
b.intersecting
c.skew
d.congruent
e.collinear
Answer: Correct answers are B, D,E
Step-by-step explanation:
2/5 x + 10 = 30 solve for x
x=
Answer:
90
Step-by-step explanation:
Step 1:
2/5x + 10 = 30 Equation
Step 2:
2/5x = 20 Subtract 10 on both sides
Step 3:
x = 20 ÷ 2/5 Divide
Step 4:
x = 20 × 5/2 Multiply
Answer:
x = 90
Hope This Helps :)
PLEASE HELP! I WILL MAKE YOU BRAINLIST!
Answer:
your answer would be B
Step-by-step explanation:
every item is 9 dollars divide the cost by the number of items it is always 9 meaning 9 is the constant. hope this helps.
Answer:
18
To verify the constant you only have to verify every option by adding those options by itself and the one that matches your information is the correct answer
Use the data 10,12,11,10,7,6,7 to Find the mean of the data A.7 B.8 C.9 D.10 E.9.5
Answer:
The answer is C.9
Step-by-step explanation:
in order to fine the mean using number data you need to add all the number then divide by that much numbers. So for example 10+12+11+10+7+6+7 would equal 63. So since you have 7 numbers of data, you need to divide 7 and 63 (7÷63). 7÷63 equals 9. So therefore the answer is C.9.
A ladder is leanning on a 10m house if the base of the ladder is 3m away from the house how tall is the ladder
Answer:
The length of the ladder is 10:44 meters.
Step-by-step explanation:
Base of the ladder is 3 meters away from the house. So base =3 m
one side 10 meters and base is 3 meters
Vanessa deposits $24,000 into each of two savings accounts. Account I earns 2. 4% interest compounded annually. Account II earns 2. 4% annual simple interest. There are no additional deposits or withdrawals. What is the sum of the balances of these accounts at the end of 5 years? $53,760. 00 $53,901. 59 $54,043. 20 $56,640. 0.
The sum of the balances of these accounts at the end of 5 years is given by: Option B: $53,901.59 (approx)
How to calculate compound interest's amount?If the initial amount (also called as principal amount) is P, and the interest rate is R% per unit time, and it is left for T unit of time for that compound interest, then the interest amount earned is given by:
[tex]CI = P(1 +\dfrac{R}{100})^T - P[/tex]
The final amount becomes:
[tex]A = CI + P\\A = P(1 +\dfrac{R}{100})^T[/tex]
How to calculate simple interest amount?If the initial amount (also called as principal amount) is P, and the interest rate is R% annually, and it is left for T years for that simple interest, then the interest amount earned is given by:
[tex]I = \dfrac{P \times R \times T}{100}[/tex]
For the considered case, we're given that:
Initial amount in both accounts deposited = $24,000 = PType of interest: Compound interest in first account and simple interest in second accountUnit of time: AnnuallyRate of interest = 2.4% annually = RTotal unit of time for which amount is to be calculated: 5 years = T
In first account, the final amount at the end of 5 years is evaluated as:
[tex]A = 24000(1 + \dfrac{2.4}{100})^4 = 24000(1.024)^4 \approx 27021.59\: \rm (in \: dollars)[/tex]
In second account, the final amount at the end of 5 years is evaluated as:
[tex]A = 24000 + \dfrac{24000 \times 2.4 \times 5}{100} = 24000 + 2880 = 26880 \text{\: (in dollars)}[/tex]
Total amount after 5 years in these accounts = [tex]27021.59 + 26880 = 53901.59[/tex] (in dollars)
Thus, the sum of the balances of these accounts at the end of 5 years is given by: Option B: $53,901.59 (approx)
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A desk is purchased for $277. Calculate its worth after depreciating for 5 years if it’s depreciation rate is 20% per year.
Answer: After 5 years it’ll cost $90.767.
Step-by-step explanation:
Find the slope of the line that passes through (1, 5) and (5, 6).
Answer: 1/4
Step-by-step explanation:
slope = (y2 - y1) / (x2 - x1)
= (6 - 5) / (5 - 1)
= 1/4
Lily uses the function f(x)=23,000(1.021)x to model the future annual population growth of the city where she lives. Which of the following represents Lily's estimate of the population in 8 years?
3,395
23,483
27,160
187,864
Answer:
its not b
Step-by-step explanation:
its c 27160 we went over this with my teacher
Factor completely 3x2 + 5x + 1
Answer:
5x+6
Step-by-step explanation:
Im not sure if its 3*2 (like multiplying) or 3x times 2?
A school has an unreliable clock in its tower.The probabilities of gain and loss in the clock in any 24-hour period are given in this table.
Gain of 1 minute No change Loss of 1 minute
Probability 1/2 1/3 1/6
If the clock is set to the correct time at noon on Sunday,find the probability of these events:
(a)The clock is correct at noon on Tuesday.
(b)The clock is not slow at noon on Wednesday.
Answer:
(b) What is the probability that exactly two of the three friends will sit next
to each other?
7E-10 You and two of your friends are in a group of 10 people. The group is
randomly split up into two groups of 5 people each. Specify an appropriate
sample space and determine the probability that you and your two friends
are in the same group.
7E-11 You are dealt a hand of four cards from a well-shuffled deck of 52
cards. Specify an appropriate sample space and determine the probability
that you receive the four cards J, Q, K, A in any order, with suit irrelevant.
7E-12 You draw at random five cards from a standard deck of 52 cards.
What is the probability that there is an ace among the five cards and a king
or queen?
7E-13 Three balls are randomly dropped into three boxes, where any ball is
equally likely to fall into each box. Specify an appropriate sample space and
determine the probability that exactly one box will be empty.
7E-14 An electronic system has four components labeled as 1, 2, 3, and 4.
The system has to be used during a given time period. The probability
that component i will fail during that time period is fi
for i = 1, . . . , 4.
Failures of the components are physically independent of each other. A
system failure occurs if component 1 fails or if at least two of the other
components fail. Specify an appropriate sample space and determine the
probability of a system failure.
7E-15 The Manhattan distance of a point (x, y) in the plane to the origin
(0, 0) is defined as |x| + |y|. You choose at random a point in the unit square
{(x, y) : 0 ≤ x, y ≤ 1}. What is the probability that the Manhattan distance
of this point to the point (0, 0) is no more than a for 0 ≤ a ≤ 2?
7E-16 You choose at random a point inside a rectangle whose sides have the
lengths 2 and 3. What is the probability that the distance of the point to the
closest side of the rectangle is no more than a given value a with 0 < a < 1?
7E-17 Pete tosses n + 1 fair coins and John tosses n fair coins. What is the
probability that Pete gets more heads than John? Answer this question first
for the cases n = 1 and n = 2 before solving the general case.
7E-18 Bill and Mark take turns picking a ball at random from a bag con-
taining four red balls and seven white balls. The balls are drawn out of the
bag without replacement and Mark is the first person to start. What is the
probability that Bill is the first person to pick a red ball?
3
The scatterplot and table show the weekly profit in dollars earned from the sale of pastries at seven different prices. The data can be modeled by a quadratic function.
Which function best models the data?
A)y = 0.001x2 - 0.426x + 35.672
B)y = -60.4x2+ 348.1x - 334.2
C)y = 0.001x2+ 35.672
D)y = -60.4x2 - 334.2
The table is an illustration of a quadratic regression model
The function that best models the data is y = -60.4x^2 +348.1x -334.2
How to determine the function that models the data?To determine the function that models the data, we make use of a graphing calculator.
Using the graphing calculator, we have the following calculation summary
a = -60.4
b = 348.1
c = -334.2
A quadratic regression model is represented as:
y = ax^2 + bx + c
So, we have:
y = -60.4x^2 +348.1x -334.2
Hence, the function that best models the data is y = -60.4x^2 +348.1x -334.2
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Find the circumference and area of a circle with a radius of 11 inches.
Find the circumference and area of a circle with a radius of 11 inches.
Answer:
69.12
A different camera is selling for $7. 50 off the regular price. It was discounted 15%. What was the original price of the camera? $112. 50 $75. 00 $50. 00 $45. 0.
Answer:
112.50
Step-by-step explanation:
10% added 7.50 is 75
5% added to 7.50 is is 37.50
75+37.50= 112.50
4:find the measure of angle c.
Answer: 98 Degrees
Step-by-step explanation: A straight line is 180 degrees so, Take 180 minus 82 : 180 - 82 = 98 Degrees
The diagram shows a regular hexagon and a regular pentagon.
Calculate the size of the angle marked x.
You must show all your working.
Since a regular polygon has equal interior angles, then the measure of the angle marked x is: 132°.
What is a Regular Polygon?A regular polygon is any n-sided polygon that has equal interior angles and equal sides.
Thus:
Each angle of a regular hexagon = 120°Each angle of a regular pentagon = 108°Therefore:
x = 360 - 120 - 108
x = 132°
Thus, since a regular polygon has equal interior angles, then the measure of the angle marked x is: 132°.
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Place the steps in solving the following equation in the correct order (from top to bottom).
Answer:
Step-by-step explanation:
1- Distribute
2-Combine like terms
3. divide on both sides
4- subtract from both sides
25 points please help me with this
Answer:
Step-by-step explanation:
f(-5) = -(-5) + 1
= 5 +1
= 6
Answer:
f(-5) = -(-5) + 1
= 5 +1
= 6
Step-by-step explanation:
can i maybe get branlyest i only have 1 one rn it would help
What is 8s-3x+4k I’m confused
In the figure, AngleRQS Is-congruent-to AngleQLK.
3 lines are shown. Lines S P and K N are parallel. Line R M intersects line S P at point Q, and intersects line K N at point L. Angle R Q S is x degrees. Angle K L M is (x minus 36) degrees.
What is the value of x?
36
72
108
144
Answer:
C. 108
Step-by-step explanation: This is the correct answer on Edge 2021, just took the quiz and made a 100%. Hope this helps ^-^.
The value of 'x' is 108° . Option C
How to determine the value of xFrom the illustration,
Angle RQS is at Q = x degrees
Angles KLM is at L = x - 36 degrees
Note that they are corresponding angles
Corresponding angles sum up to 180°
Then equate both angles to 180 degrees
x + x - 36 = 180°
Collect like terms
2x = 180 + 36
2x = 216
Make 'x' subject of formula
x = 216 / 2
x = 108°
Therefore, the value of 'x' is 108° . Option C
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the price of a 70 inch tv was reduced from 800$ to 600$ on black friday by what percentage was the tv reduced
well, from 800 to 600 is 200 bucks.
if we take 800 to be the 100%, what is 200 off of it in percentage?
[tex]\begin{array}{ccll} amount&\%\\ \cline{1-2} 800 & 100\\ 200& x \end{array} \implies \cfrac{800}{200}=\cfrac{100}{x}\implies 4=\cfrac{100}{x} \\\\\\ 4x=100\implies x=\cfrac{100}{4}\implies x=25[/tex]
Jack rides A bike 8 miles and 3/4 of an hour . Use Vocabulary for unit rates and fractions to explain how to find jacks speed in miles per hour. Then find jacks speed
PLS HELP IT'S DUE TODAY
Answer:
i am so srry but i dont know but good luck
Step-by-step explanation: