Megan buys 3 bracelets and 3 necklaces. Each bracelet costs $3. Megan pays the cashier $40 and gets $4 in change. Which equation could be used to find the cost, n, of one necklace?
Answer:
8.3
Step-by-step explanation:
40-4=36
3x3=9
36-9=25
25/3 = 8.3
x=7
Step-by-step explanation:
what is the answer to
(6x10x^{-5})x(8x10x^{7} )
written in standard form?
Answer:
standard form is 48x^23
HELP I NEED HELP ASAP
Answer:
I get Answer c x=6 seconds
interest rate helppppppp
Answer:
It is : (5%)
Step-by-step explanation:
[tex]i = prt \\ 60 = 600 \times r \times 2 \\ r = \frac{60}{1200} \\ r = 0.05 \\ r = 5\%[/tex]
I hope that is useful for you
A 14 V battery powers the headlights of a car. What is the resistance of the headlights if they draw 3.0 A of current when turned on?
9514 1404 393
Answer:
4 2/3 ohms
Step-by-step explanation:
The resistance is the ratio of voltage to current.
R = V/I
R = (14)/(3) = 4 2/3 . . . ohms
Solve for the bottom please!!! Only if you know!
Answer:
aproximately 23.5 I believe
Step-by-step explanation:
ok, so first you square 17, which is 289. then you square 29, which is 841. subtract 289 from that:
841-289=552
now take the square root of 552
aproximately 23.5 I believe
Answer: 23cm
Step-by-step explanation:
a² + b² = c²
x² + 17² = 29²
x² + 289 = 841
x² = 552
√x² = √552
x ≈ 23 cm
Choose the system of equations to solve the following: Tickets to a movie cost $7.25 for adults and $5.50 for students. A group of friends purchased 8 tickets for $52.75. Determine the total number of adult and student tickets. *
A: 7.25a + 5.50s = 8 and a + s = 52.75
B: 7.25a + 5.50s = 52.75 and a + s = 52.75
C: 7.25a + 5.50s = 52.75 and a + s = 8
uMMMMMMMM I don't know
12. ALGEBRA Sherri Cole found that the 12-ounce can of frozen orange juice
sells for $0.16 less than the 16-ounce can, which is $0.68 less than the
24-ounce can. If the unit price of the 24-ounce can is $0.005 less than the
unit price of the 12-ounce can, which of the three is the best buy based
on the lowest unit price?
Answer:
96 = x
Step-by-step explanation:
I'm going to use cents instead of dollars because I find decimals and fractions to be cumbersome. I assume you meant $.005 instead of 4.005.
Let x denote the price (in cents) of the 12-ounce can. Then the price of the 16-ounce can is (x + 16) cents, and the price of the 24-ounce can is ((x + 16) + 68), or (x + 84) cents.
The unit price (cents per ounce) of the 12-oz can is x/12
The unit price of the 16-oz can is (x + 16)/16
The unit price of the 24-oz can is (x + 84)/24
You are told that, in terms of x,
(x + 84)/24 = x/12 - 0.5
Multiply both sides by 24:
x + 84 = 2x - 12
Solve for x:
96 = x
So the unit prices (in cents per ounce) are:
12 oz: 96/12 = 8 cents/oz
16 oz: 112/16 = 7 cents/oz
24 oz: 180/24 = 7.5 cents/oz
So the 16 ounce can is the best buy based on lowest unit price.
In this exercise we have to use the knowledge of finance to calculate the best price to be offered, in this way:
[tex]12 oz: 96/12 = 8 cents/oz\\16 oz: 112/16 = 7 cents/oz\\24 oz: 180/24 = 7.5 cents/oz[/tex]
Some values should be simplified as they were informed in the statement:
The unit price (cents per ounce) of the 12-oz can is x/12The unit price of the 16-oz can is (x + 16)/16The unit price of the 24-oz can is (x + 84)/24So putting together an equation with these values and terms informed we find that:
[tex](X + 84)/24 = X/12 - 0.5\\X + 84 = 2X - 12\\X=96[/tex]
So with the value of X found it is only necessary to use the previous equations and replace this value.
See more about finances at brainly.com/question/10024737
Help I’ll give out brainliest pls dont answer if you don’t
Answer:
8x-8=16 is the answer after combining like terms
Answer:
x=3
Step-by-step explanation:
8x-8=16
8x=24
x=3
:)
given the function f (x)= x2+ x-4 with the domain d: {0,1,2,3} what is range R?
Select one:
A. R: {4, 6, 10, 16}
B. R: {-4, -2, 2, 8}
C. R: {6, 9, 12, 18}
D. R: {-8, -3, 2, 6}
Help me pls thanks so much
Answer: The angle is 35 is specifically 34.85
Step-by-step explanation:
[tex]sin^{-1}[/tex]([tex]\frac{8}{14}[/tex])=34.85
12 6x−9y>12 what inequalities is equivalent to the inequality
Answer:
use mathpapa.com for those type of questions it always helps
Step-by-step explanation:
Helppp plzzz I will mark brainliestttt
Answer:
B. 160 inches
Step-by-step explanation:
The wrapping paper would be the surface area of the box.
The surface area of a box is 2(h * W) + 2(h * L) + 2(W * L)
h = height
W = width
L = length
length x width x height
length = 5 in
width = 2 in
height = 10 in
2(10 * 2) + 2(10 * 5) + 2(2 * 5)
2(20) + 2(50) + 2(10)
40 + 100 + 20
160 inches
Please help me winner gets 20 points
Solve 3[-x + (2x + 1)] = x - 1.
Answer:
x=-2
Step-by-step explanation:
distribute 3
solve
Write the equation of each line in slope-intercept form and identify the slope. 4x=2+y
Answer:
y = 4x - 2
Step-by-step explanation:
Given: 4x=2+y
First, subtract 2 on both sides to isolate out y. (Slope-intercept form is y=mx+b)
Once subtracted, you get: 4x-2=y
Rearrange it, and you get: y=4x-2
what does 4m^2 +5m if m=-2 equal?
Answer:
-26
Step-by-step explanation:
tell me if im right and please brainliest
The answers are
A. 1/3 cm/s
B. 1/2 cm/s
C. 2/3 cm/s
D. 3/2 cm/s
Please help!!
Answer:C
Step-by-step explanation:
C. 2/3 cm/s
21. Which equation best represents the line of regression in the following
scatter plot?
O A) y = 2x + 1
O B) y = -2x + 1
O C) y = -1/2x + 3
OD) y = x + 2x + 4
Answer:
D
Step-by-step explanation:
I need help with inequality question.
Answer:
the answer is c
Step-by-step explanation:
:))))))))
BC
Round your answer to the nearest hundredth.
А
65°
6
B
?
Answer:
90
Step-by-step explanation:
The missing value is 2.56 to the nearest hundredth.
What are the trigonometric identities?Equations using trigonometric functions that hold true for all possible values of the variables are known as trigonometric identities.
We have a right-angled triangle.
And cos(θ) = Adjacent leg / hypotenuse
cos(65°) = The missing value / 6
The missing value = cos(65°) x 6
The missing value = 0.4226 x 6
The missing value = 2.56 to the nearest hundredth.
Therefore, the value is 2.56.
To learn more about the trigonometric identities;
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I NEED HELP OW RN rn please
Answer:
(4,10)
Step-by-step explanation:
Well, you just count each unit coming from the x-axis up and then do the same for the y axis going to the right. You can also see that the graph is counting by 2 if you look at the "O" coordinate
Researchers were investigating whether there is a significant difference between two medications, R and S, designed to reduce fleas found on cats. From a sample of 300 cat owners, the researchers randomly assigned 150 cat owners to use medication R on their cats and the remaining cat owners to use medication S. For the cats using medication R, 88 percent had no fleas. For the cats using medication S, 90 percent had no fleas. Which of the following is the most appropriate method for analyzing the results?
A two-sample z -test for a difference in population proportions
A two-sample z-test for a difference in sample proportions
A one-sample z-test for a sample proportion
A one-sample z-test for a population proportion
A one-sample z-test for a difference in sample proportions
Answer:
A) A two-sample z -test for a difference in population proportions
Step-by-step explanation:
To determine whether a difference in proportions is significant, the two-sample z-test for a difference in population proportions is the most appropriate method for the analysis.
The most appropriate method for analyzing the results is A. A two-sample z-test for a difference in population proportions.
What is the hypothesis?In statistics, hypothesis testing is the process by which an analyst tests an assumption about a population's parameter.
In this scenario, we have two different treatments (medication R and S) applied to two separate samples (150 cat owners each) and we want to determine if there is a significant difference in the proportion of cats with no fleas between the two groups.
This is a classic scenario for a two-sample z-test for a difference in population proportions, which tests the hypothesis that the difference in proportions between two independent populations is equal to zero.
Thus, a two-sample z-test for a difference in population proportions.
Hence, the correct answer would be option (A)
To learn more about the z-test statistic click here:
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15 points
What is the equation of the graph below?
Complete the operation. Show steps needed
without a calculator.
a) 3.76 + 0.345
Answer:
4.105000
Step-by-step explanation:
because you have to add up
What’s the slope to this graph?
Answer:
6/3
Step-by-step explanation:
I think bhjukjkfiffo
Answer:
-5/3
Step-by-step explanation:
rise/run you go down 5 and over 3
13. Tikboy earns P 320 a day. This is 4% of her monthly income. How much is her monthly incom
a. 800
b. 80
c. 8,000
d 80,000
Answer:
b is the answer okkkkkkkkkkkkkkkk
YOU GET 100 POINTS!!!! Select the correct graph.
Based on the end behaviors, which graph is the graph of f(x) = -2x4 − 4x3 + x2 + x + 3?
Given:
The function is
[tex]f(x)=-2x^4-4x^3+x^2+x+3[/tex]
To find:
The graph of the function by using the end behaviors.
Solution:
We have,
[tex]f(x)=-2x^4-4x^3+x^2+x+3[/tex]
The degree of the polynomial is 4 which is even and the leading coefficient is -2, which is negative. So,
[tex]f(x)\to -\infty\text{ as }x\to -\infty[/tex]
[tex]f(x)\to -\infty\text{ as }x\to \infty[/tex]
It means, the graph of the function approaches to negative infinity on the both ends.
Therefore, the correct option is C.
The probability of rolling a 2 on a number cube is 1/6 . If you were to roll the
cube 30 times, you would expect to get a 2 around 5 times (1/6 · 30 = 5).
You simulate 30 rolls. How many 2s would make you question your model?
A. 14
B. 5
C. 2.
D. 8
Answer: a
Step-by-step explanation:
If a cube is rolled by 30 times then 5 times 2s will make the question the model.
What is probability?Probability is the occurrence of any event or how likely an event can happen.
Mathematically probability = the number of desired outputs by the number of the possible outcomes.
In the number cube, there are six faces above each of them written one to six later.
The probability of getting 2 at once time will be 1/6 since the number of desired output is only one and possible outcomes are six.
Mathematically(Theoretically) if we roll the cube 30 times then the number of 2s will be 1/6 × 30 = 5 times.
If experimentally if we roll dice and the number of 2s came 5 times then our question will become a model.
So by 5 times, 2s will make the question model.
For more information about the probability
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Which table shows a linear relationship?
OA
OB
1
X
0
2
0
С
1
2
A
Ос
5
7
10
у
7
y
12
18
CD
Hint:
Is the change in x constant and is the change in y
constant.
0
1
B
x
2
1
2
0
D
16
30
У
8
16
24
Answer:
Its C
Step-by-step explanation:
Because its c