Answer:
dive the cost by the number of bags for each dot:
4 / 1 = 4
8 / 2 = 4
12 / 3 = 4
This means each bag cost $4
The equation would be Y = 4X, because you would multiply each bag bought (X) by $4 to get the total cost (Y).
Step-by-step explanation:
BRAINLYIS TPLS
Can you answer which ones are impossible , unlikely , as likely as not , likely , or certain ?
y=2x-8
13x + 2y = 18
solving systems by the elimination method
Answer:
x = 2
Step-by-step explanation:
13x + 2( 2x - 8) =18
13x + 4x -16 = 18
13x + 4x = 34
17x = 34
x = 2
A finance magazine did a survey and found that the average American family spends $1,600 on a summer vacation. If the distribution is normal with standard deviation $411, find the amount a family would have spent to be the 80th percentile. PreviousNext
Answer:
$1945Step-by-step explanation:
Let X be the normal distribution
Kindly find attached a detailed annotation of the solution to the problem.
in the attached document, we found the value that corresponds to 80th percentile, hence we found the value such that the probability that the variable x is lower than this value is 0.8.
Also, from the calculation, we found that the value which corresponds to the 80th percentile is $1945
13. A bag contains 8 balls of which 2 are red and 6 are white. A ball is selected and not replaced. A
second ball is selected. Find the probability of
obtaining:
(a) two red balls,
(b) two white balls,
(d) one ball of each colour.
Need explanation
pls help
will give the brainliest!
Answer:
The second ball would most likely be red and there are 5 red balls in the bag. And if you replaced the ball it would most likely be the same ball
Step-by-step explanation:
1. A large pizza costs $10, plus $1.25 for
each topping. How many toppings did you
get if your total bill was $15?
Answer:
you got 4 toppings
Step-by-step explanation:
$15-$10=$5
5÷1.25=4
The table compares the heights (in centimeters) and the weights (in kilograms) of Karim's friends.
Can the weight of Karim's friends be represented as a function of their height?
Answer:
NO
Step-by-step explanation:
Answer:
No
Step-by-step explanation:
Pamela is 7 years older than Jiri. The sum of their ages is 53. What is Jiri's age?
Answer:
46
Step-by-step explanation:
if there ages in total is 53 and pamela is 7 years older than jiri
53-7 would give u jiri age
Line JK passes through points J(–3, 11) and K(1, –3). What is the equation of line JK in standard form?
7x + 2y = –1
7x + 2y = 1
14x + 4y = –1
14x + 4y = 1
Answer:
b
Step-by-step explanation:
edge2020
The equation of the line is 7x+2y = 1
What is an equation of a line?The equation of a line is linear in the variables x and y which represents the relation between the coordinates of every point (x, y) on the line. i.e., the equation of line is satisfied by all points on it.
Given that a line is passing through two points J(-3, 11) and K(1, -3). we need to find the equation of line JK,
So, we know that the equation of a line passing from two points (x₁, y₁) and (x₂, y₂) is =
y-y₁ = y₂-y₁/x₂-x₁ (x-x₁)
Here, (x₁, y₁) and (x₂, y₂) = J(-3, 11) and K(1, -3)
Therefore, the equation of the line =
y-11 = -3-11 / 1+3 (x+3)
y-11 = -7/2(x+3)
Multiply by 2,
2y-22 = -7(x+3)
2y-22 = -7x-21
7x+2y = 1
Hence the equation of the line is 7x+2y = 1
Learn more about equation of a line, click;
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angle 7
angle 1
angle 4
angle 3
angle 2
angle 8
Answer:
The answer is angle 7, 3, and 2
Step-by-step explanation:
Angle 7 is vertical, angle 3 is alternate exterior, and angle 2 is corresponding.
Answer:
2, 7, 3
Explanation:
7= Vertically opposite
2= Corresponding
3= Vertically opposite to 2
Which statement is true about 143? A. It is a prime number. B. It is a composite number. C. It is a whole number that is neither prime nor composite. D. It is not a whole number.
Answer:
B. It is a composite number.
Step-by-step explanation:
143 can be divided by 11 and 13 making it a composite number.
The number 143 is a composite number due to having more than two factors.
The factors of the number 143 are 1, 11 and 13.
What is the difference between a prime number and a composite number?Prime number has only two factors i.e. 1 and the number itself while composite numbers can have more than two factors.
143 = 1*11*13
Since the number 143 has 3 factors i.e. 1, 11, and 13.
So, The number 143 is a composite number.
Therefore, The number 143 is a composite number due to having more than two factors.
To get more about composite numbers visit:
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How do you make a graph given an equation
Round 12.478 to the nearest tenth.
Answer:
12.5
Step-by-step explanation:
Answer:
12.5
Step-by-step explanation:
If the number after the place you are trying to round is less than five it doesn't change. If it is five or higher, the number goes up by one.
Solve the system of equations using any method. 2X – Y + Z = – 2, 6X + 3Y – 4Z = 8, – 3X + 2Y +3Z = – 6
Answer:
Z = - 2, Y = 0, X = 0
Step-by-step explanation:
2X – Y + Z = – 2
6X + 3Y – 4Z = 8
– 3X + 2Y +3Z = – 6
isolate "X" in the first equation
2X - Y + Z = - 2 => isolate "2X"
2X = - 2 - Z + Y => divide either side by 2
X = - 1 - Z/2 + Y/2
substitute this value of X in the second two equations (applying the substitution method here)
6(- 1 - Z/2 + Y/2) + 3Y - 4Z = 8,
6Y - 7Z - 6 = 8
- 3(- 1 - Z/2 + Y/2) + 2Y +3Z = - 6,
Y + 9Z + 6/2 = - 6
isolate Y in the second equation (6Y - 7Z - 6 = 8) and substitute in the third equation (Y + 9Z + 6/2 = - 6)
6Y - 7Z - 6 = 8 => isolate 6Y
6Y = 14 + 7Z => divide either side by 6
Y = 7Z + 14/6 => substitute in second equation
7Z + 14/6 + 9Z + 6/2 = - 6 => solve for Z
61Z + 50/12 = - 6, Z = - 2
substitute the value of Z into the equations "Y = 7Z + 14/6" and using the value of Y and Z, substitute into "X = - 1 - Z/2 + Y/2"
Y = (7(- 2) + 14)/6 = 0 / 6
= 0
X = - 1 - (- 2)/2 + 0/2 = - 1 - (-1) + 0
= - 1 + 1 + 0 = 0
Which of the following explains the relationship between angles C and D
Answer:
they are a linear pair
Step-by-step explanation:
they each add up to 180º when added together
Someone please help me
An online streaming service deducts $7 from Serena’s account every month of a year. After 1 year, how much do the streaming service fees change Serena’s account?
Answer:
$84
Step-by-step explanation:
This is a super simple question. All you have to know is how much money will be charged a month, and how many months there are in a year. Just simply multiply 7 by 12 as the streaming service is charging 7 dollars a month and there are 12 months in a year. After you multiply the two numbers, you should end up with 84 dollars charged after 1 year.
Bruce wants to make 50 ml of an alcohol solution with a 12% concentration. He has a 10% alcohol solution and a 15% alcohol solution.
Which equation can Bruce use to determine how much of the 10% alcohol solution he should use?
ingredients summed = final product
.10 * x ml + .15 (50ml - x) = .12 (50 ml) solve for x the amount of 10 %
.1x + 7.5 - .15x = 6 - .05x = -1.5
x = 30 ml of 10%
50-30 = 20 ml of 15%
HELP PLS ITS BEEEN AN HOUR im going to cry ):
Answer: Don't cry please you'll be okay.
Step-by-step explanation:
elise says, "if you subtract 16 from from my number and multiply the difference by -5, the result is -35." what is elise's number?
Answer:
23
Step-by-step explanation:
1. (x-16)-5=-35
2. (x-16)=-35/-5
3. x-16=7
4. x=16+7
5. x=23
What is the multiplicative inverse of 3/7 ? A) −7/3 B) −3/7 C) 1/7 D) 7/3
Answer:
B
Step-by-step explanation:
Answer:
its 7/3 . multiplicative inverse is just its opposite
If a slice of pizza costs $1.50 and you get 5 slices, how much do you
pay?
Answer:
It cost $7.5 of five slice
2y - 6 = -6x, solve for y (must be in form y = mx + b)
Answer:
y=-3x+3
Step-by-step explanation:
hope this helps :)
Solving a Work Problem
Sanjay and Felipe are putting together a 500-piece Use the table to write and solve an equation to
puzzle. Sanjay could do the entire puzzle by himself in 6 determine the approximate amount of time it would
hours, while it would take Felipe 8 hours to do the puzzle take Sanjay and Felipe to do the puzzle if they were
alone.
working together.
O 0.8 hours
Rate
(part/h)
Time
(h)
Part of puzzle
completed
1.7 hours
✓ 3.4 hours
Sanjay
t
t
O 7 hours
Felipe
t
t
can someone please explain to me how 500/6+500/8=3500/24 that’s where i’m stuck
Answer:
3.4 hours
Step-by-step explanation:
Calculator
31°
What is the value of x?
Enter your answer as a decimal to the nearest tenth in the box.
22 ft
ft
B
х
Answer:
x=90=9.49
Step-by-step explanation:
compare with yours
Answer:
It's actually 13.2
Step-by-step explanation:
I just took the 7.01 Unit CheckPoint on K12
3.5 in/year=cm/day
help
Answer:
.024 cm/day
Step-by-step explanation:
Two times a number +1 is greater than five and less than seven
Answer:
6
Step-by-step explanation:
because you should know it is well maybe it should have a decimal
If the measures of two angles of a triangle are 87 and 17 , what is the measure of the third angle
Answer:
76 degrees
Step-by-step explanation:
The total of the three angles in a triangle should equal 180 degrees. So to find the third angle, subtract the two given angles from 180
180 - 87 = 93
93 - 17 = 76
The third angle is 76 degrees because then all angles will add up to 180
John purchased a carr in 1961 for $12,000. Experts estimate that its value will increase by 5% per year. How much will be the cost of the car after 22 years
A- 35103$ B- 27600$
C- 10000$ D- 30105$
Answer:
A- 35103$
Step-by-step explanation:
round to the nearest whole number 2.09
Answer:
the answer is 2
Step-by-step explanation:
this is because when you round 2.09 to the nearest whole number it is 2
Over the next 15 months you have to read at least 75 books. You have to read x books per month. The inequality "15x is greater than or equal to 75" represents this situation. Solve the inequality to find the number of books you have to read per month.
