Answer:
Step-by-step explanation:
Let x represent the cost of the video game before tax.
A customer buys a CD for $15 and a video game. The expression for the total cost of both items before tax is
15 + x
The customer pays a total of $42.80 for the two items. This includes 7% sales tax. The amount of tax paid by the customer for both items would be
7/100 × 42.8 = $2.996
The amount paid for the items before tax would be
42.8 - 2.996 = 39.804
Therefore, the equation that can be used to find x, the cost of the video game before tax is
15 + x = 39.804
Answer:
B
Step-by-step explanation:
-12 = 24 + 4b plz i need help asap plzplzplzplzplz i will give brainilest to the person who answers
Answer:
b=-9 that the right answer
Which pyramid has a greater volume and how much greater is its volume?
8 in
4 in
.
9 in
6 in.
8 in
10 in
A) The volume of the pyramid on the left is greater by 8 in
B) The volume of the pyramid on the left is greater by 24in.
C) The volume of the pyramid on the right is greater by 8 in.
D) The volume of the pyramid on the right is greater by 24 in
Answer:
A)
Step-by-step explanation:
I did the test and got it correct please mark brainliest. I know it is correct.
44 students completed some homework and the histogram shows information about the times taken. Work out an estimate of the interquartile range. In your working you must show the lower and upper quartiles
Answer:
19 mins
Step-by-step explanation:
1.4 × 5 = 7
0.8 × 10 = 8
1.4 × 10 = 14
1 × 15 = 15
15 + 14 + 8 + 7 = 44
44 / 4 = 11
Lower Quartile of 44 = 11
Lower Quartile = 10 minutes
11 × 3 = 33
Upper Quartile = 29 minutes
The Range is 19 minutes
The Range is 19 minutes.
What is histogram?A histogram is an approximate representation of the distribution of numerical data.
Here, we have,
1.4 × 5 = 7
0.8 × 10 = 8
1.4 × 10 = 14
1 × 15 = 15
15 + 14 + 8 + 7 = 44
44 / 4 = 11
Lower Quartile of 44 = 11
Lower Quartile = 10 minutes
11 × 3 = 33
Upper Quartile = 29 minutes
The Range is 19 minutes
To learn more on histogram click:
https://brainly.com/question/17145899
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Solving a two-step equation for y
5y + 12 = 32
a
y=5
b
y=6
c
y=8.8
d
y=4
HOW DO I START?
Don't worry, you know that this problem only has two small steps, and it's done, it should take less than 45 seconds to complete.
WE ALWAYS WANT TO ISOLATE THE VARIABLE TO FIND Y: MAKE IT BE ALONE!
STEP 1: Subtract 12 from both sides, to start getting 5y alone.
NOW YOU HAVE: 5y = 20
STEP 2: Divide by 5 from both sides, to get the Y fully alone.
NOW YOU HAVE: y = 4
Hopefully this helped!
{(9c^6)(3c^6)}=(9c
6
)(3c
6
)
Answer: 33c12
Step-by-step explanation:
Answer: 27c^12
(9c^6)(3c^6) = 27c^12
Step-by-step explanation:
PLEASE HURRY!!!!!!!
1) Find the 8th term of the sequence.
6, 12, 24, 48, 96,.......
It would be 768 because you just keep multiplying by 2.
Answer:768
Step-by-step explanation:
Multiply by 2
For example:
6 at the start(6 × 2 ) 12 then 12 × 2 and so on
Can someone answer this question please please help me I really need it if it’s correct I will mark you brainliest .
Formula for the area of a face of a cube: A = length x width
Let's find the area of one face.
A = 5 x 5
A = 25
Now, let's multiply the area of one face by 6 because a cube has 6 faces.
25 x 6 = 150
A = 150 square centimeters
Hope this helps! :)
When a water tank is $30\%$ full, it contains 27 gallons less than when it is $20\%$ empty. How many gallons of water does the tank hold when it is full?
Answer:
54 gallons
Step-by-step explanation:
Let x represent the volume of the full tank.
When the water tank is 30% full;
= 30% of x = 0.30x
when it is 20% empty:
= x - 20% of x = x - 0.20x = 0.80x
The difference is given as 27.
So, we can represent the question on an equation as;
0.80x - 0.30x = 27
Solving the equation, we have;
0.50x = 27
x = 27/0.50
x = 54 gallons
The tank can hold 54 gallons when it is full.
Answer:
54
Step-by-step explanation:
solve for n
-7+2/3n = 13
Answer:
[tex]- 7 + \frac{2}{3}n = 13 : n = 30[/tex]
Step-by-step explanation:
[tex]-7+\frac{2}{3}n=13[/tex]
Add [tex]7[/tex] to both sides:
[tex]-7+\frac{2}{3}n+7=13+7[/tex]
Simplify:
[tex]\frac{2}{3}n=20[/tex]
Multiply both sides by [tex]3[/tex]:
[tex]3 * \frac{2}{3}n=20 * 3[/tex]
Simplify:
[tex]2n=60[/tex]
Divide both sides by [tex]2[/tex]:
[tex]\frac{2n}{2}=\frac{60}{2}[/tex]
Simplify:
[tex]n = 30[/tex]
Hope I helped. If so, may I get brainliest and a thanks?
Thank you. Have a good day! =)
Agent Hunt is transferring classified files from the CIA
mainframe to his flash drive.
The variable S models the size of the files on the drive
(in megabytes) after t seconds of transfer.
S= 5t +45
How many megabytes does Agent Hunt transfer
every 10 seconds?
Answer:
50MB.
Step-by-step explanation:
Its on Khan Academy lol. Good luck on your unit test!!!
Answer:
50
Step-by-step explanation:
Khan Academy is never wrong >3>
There are eight black socks six blue socks and 14 White Sox in a drawer if one sock is randomly chosen from the drawer than what is the probability that the sock not be blue
Answer:
The probability that the socks picked is not blue is 11/14
Step-by-step explanation:
In this question, we are to calculate that a socks selected from random from the group of socks given in the question is not a blue socks.
This means the socks would either be a black or a white socks
Firstly, we find the total number of socks = 8 + 6 + 14 = 28 socks
Now the probability of picking a blue socks will be 6/28 = 3/14
We must understand that the probability of not picking a blue socks = 1 - the probability of picking a blue socks
Thus, the probability of not picking a blue socks will be 1 - 3/14 = 11/14
Answer:
The probability that a sock chosen at random is not blue P = 11/14 = 0.786
Step-by-step explanation:
Probability is the chances of getting a particular outcome.
Given:
Black socks = 8
Blue socks = 6
White socks = 14
Total = 8+6+14 =28
The probability that a sock chosen at random is not blue P;
P = number of non-blue socks ÷ total number of socks
Number of non blue socks = black + white socks = 8+14 = 22
Substituting the values;
P = 22/28 = 11/14
P = 11/14 = 0.786
x - 5/3 = 1 5/12
URGENT!! I BE OF YOU PLZ HELP!!
Answer:
x= 37/12
Step-by-step explanation:
16x-420>-100 I need help please
Answer:
x>20
Step-by-step explanation:
Answer:
[tex]x > 20[/tex]
Step-by-step explanation:
[tex]16x - 420 > - 100 \\ 16x > - 100 + 420 \\ 1 6x > + 320 \\ \frac{16x}{16} > \frac{320}{16} \\ x > 20[/tex]
hope this helps
brainliest appreciated
good luck! have a nice day!
A brother and a sister are in the same math class. There are 8 boys and 10 girls in the class. One boy and one girl are randomly chosen. What is the probability that the brother and sister are chosen? Write your answer as a fraction in simplest form.
Item 5
A brother and a sister are in the same math class. There are 8 boys and 10 girls in the class. One boy and one girl are randomly chosen. What is the probability that the brother and sister are chosen? Write your answer as a fraction in simplest form.
Answer:
the probability is 1/80
Step-by-step explanation:
Readmore at : https://brainly.com/question/3325543
Answer:
the probability is 1/80
Step-by-step explanation:
Please give brainliest
с
60 mm
25 mm
What is the length of the hypotenuse?
Answer:
65mm
Step-by-step explanation:
From the Pythagorean theorem, we can write it as sqrt(60^2+25^2) which is 65.
Find the slope of the line graphed
Answer:
The slope is 3/2
Step-by-step explanation:
To find slope you do rise over run
Rise being how much you go up or go down
Run being how much you move sideways
Always measure Rise first, it is the numerator and then Run as the denominator.
Answer:
m= 3/2.
Step-by-step explanation:
To find the slope, use the two points shown in the graph which as (-1, 2) and (1, 5). Plug these into the slope formula [tex](m= \frac{y_{2}-y_{1} }{x_{2}-x_{1}} )[/tex]
[tex]m= \frac{5-2 }{{1+1}}[/tex]
[tex]m= \frac{3}{2}[/tex]
Therefore, the slope of the graph is 3/2.
What is 434 divided by 6 and round it up to the nearest tenth
Answer:
The answer is 72.3
Step-by-step explanation:
which expression has the fewest number of significant figures
A 296.54
B 5003.1
C 18.3
D 360.01
Answer:
18.3
18.3 only has three significant figures while the other numbers have more
Which one of these grids is shaded red and blue in the ratio 1 : 1/3 ?
The grid among the answer choices which is shaded 1 : 1/3 is; Choice A.
Which Grid is shaded red and blue in the ratio 1 : 1/3 ?It follows from the task content that the ratio of red to blue in each grid is as follows;
Choice A; 9 : 3 = 1 :1/3Choice B; 8 : 4 = 1 : 1/2Choice C; 7 : 5Choice D; 10 : 2 = 5: 1Choice E; 3: 9 = 1: 3Choice F; 6:6 = 1 : 1On this note, it therefore follows that the grid with the required ratio is Choice A.
Read more on ratios;
https://brainly.com/question/13513438
your friend paid $17 for a shirt. This amount was 85% of the total amount your friend spent while shopping. How much did your friend spend
Answer:
20$
Step-by-step explanation:
[tex]17 \div \frac{85}{100} = 17 \times \frac{100}{85} = 20[/tex]
Sixth grade students were asked, “what grade are you in?” Explain why this is NOT statistical question.
Answer:
they're all in the same grade
This is the question please solve this question
Answer:
a-5 and b-2 5+2=7 and 5*2=10
Step-by-step explanation:
a+b=7 and ab=10
What is the kinetic energy of a 44kg cheetah running at 50 m/s?
Answer:
55,000 Joules,
Step-by-step explanation:
Kinetic energy = 1/2 *mass * velocity^2
= 1/2 * 44 * 50^2
= 55,000 Joules,
Help me with Radians
two rangers at stations located 10 miles apart both see a camper distress signal in the distance the signal is at a compass bearing of 70 degrees from the north station and 40 degrees from the south station find the distance to the angle signal from south station to the nearest hundred
Answer:
10 miles
Step-by-step explanation:
∠1 = 70° and ∠3 = 40°. Angles of a triangle add up to 180°, so ∠2 = 70°.
Using law of sines:
10 / sin(∠2) = x / sin(∠1)
10 / sin(70°) = x / sin(70°)
x = 10
if the ratio of the radii of 2 circles is 3:4 what is the ratio of their areas?
3:4
6:8
9:16
27:64
Answer:
9:16
Step-by-step explanation:
3^2:4^2=9:16
I hope this helped and have a good rest of your day!
Darryl is a plumber. He charges $35 to make a service call and $20 an hour for any repairing. Write an algebraic equation relating Darryl’s charge to the total number of hours of labor required.
Answer:
Y= 20x+35
Step-by-step explanation
This is the eqaution, because the amount of hours he works is x and the phone call are an added plus. Add them together and youll get y
School polo shirts come in small, medium, large, and extra large. They are available in 3 colors: red, blue, and green. What is the probability of choosing a large blue shirt?
The ratio of the side lengths of Figure A to the side lengths of Figure B is 3 : 5. The area of the smaller figure is 36 square inches. What is the area of the larger figure?
Two beach rental companies compared their sales from last weekend. Both companies rent out jet skis and kayaks, and they charge the same prices. Will's Watersports made a total of $780 from renting 12 jet skis and 9 kayaks. Family Fun Rentals made a total of $570 from renting 7 jet skis and 11 kayaks. What is the cost of each type of rental?
Answer:
Therefore Jet Skis cost $50 for the rental and Kayaks cost $20.
Step-by-step explanation:
Since they both rent the vehicles at the same price, "x" for jet skis and "y" for kayaks", we can create equations for each store and a system of equations for these, as shown below:
Watersports:
12*x + 9*y = 780
Fun Rentals:
7*x + 11*y = 570
System:
[tex]\left \{ {{12*x + 9*y=780} \atop {7*x + 11*y=570}} \right.[/tex]
We can isolate "x" on the first equation:
[tex]x = \frac{780 - 9*y}{12}[/tex]
And use it on the second:
[tex]7*[\frac{780 - 9*y}{12}] + 11*y = 570\\5460 -63*y = 6840 - 132*y\\132*y - 63*y = 6840 - 5460\\69*y = 1380\\y = 20\\[/tex]
We can now use this value to find "x":
[tex]x = \frac{780 - 9*20}{12} = 50[/tex]
Therefore Jet Skis cost $50 for the rental and Kayaks cost $20.