Answer:
a. 4/11
b. 11-4= 7 used books. So the ratio of used books to all books is 11/7
10 of the students in an algebra class passed an algebra test. If these students are 50% of all the students in the class, how many students are in this algebra class?
Answer:
Are 20 students in the class
Step-by-step explanation:
[tex]x(0.5) = 10 \\ x = \frac{10}{0.5} \\ x = 20[/tex]
Answer:
50% is a pretty simple number and a percentage almost everyone knows.
Since this is usually common knowledge we can say that 10 is equal to said 50%. We need to find out how many people there are in this class, and we can set up two separate equations of addition. 50%+50%=x
10+10=k
50+50%=100% which is the max amount of kids that there cna be in this classroom, and that there are. This means that the number which is equal to 50% plus itself will also equal 100% of the students.
10+10=20
Step-by-step explanation:
2. AB – AD and BC - DC. Solve for x:
Answer:
From the diagram since AB = AD = BD, hence ABD is an equilateral triangle. (All angles = 60 degrees)
ADC is a straight line, hence BDC = 120 degrees and triangle BDC is an isosceles triangle.
Hence angle B = C and B+C = 180-120 = 60 degrees.
Hence, (x) angle C = A. 30 degrees
Step-by-step explanation:
Which is shown below
55 = 2 + 53
A. An expression
B. An operation
C. An equation
D. An inequality
what is this plz help these teachers are impossible
y>x+3
y>4-x
Answer:
y is greater than x +3
y is greater than 4-x
) Which operations are used in the expression 6(x + 8)? Choose ALL that apply.
multiplication
addition
division
subtraction
Answer:
Multiplication and addition
Step-by-step explanation:
When there are no signs between the brackets and a number, it is multiplication.
Please mark me Brainliest :)
IF RIGHT , YOU WILL BE CROWNED
Answer:
B
Step-by-step explanation:
A plumber is replacing a pipe in a kitchen. The old pipe
is 7.43 inches long. The plumber has a new pipe that is 10
inches long. How much does he need to cut off of the new
pipe to make it fit?
Answer:
2.57
Step-by-step explanation:
All the plumber has to do is subtract the longer length of the new pipe (10) with the length of the old pipe (7.43) to see how much he needs to cut off.
Answer:
He will need to cut off 2.57 inches off of the new pipe.
Step-by-step explanation:
We can calculate how many inches the plumber needs to cut off the 10 inch pipe by finding the difference between the 10 inch pipe and the 7.43 inch pipe.
So let’s subtract 7.43 from 10.
10-7.43 = 2.57
The difference is 2.57 inches, and therefore the plumber will need to cut 2.57 inches off of the new pipe to make it fit where the 7.43 inch pipe used to be.
4. please help i will give brainliest if u get it right
A tree grew from 6 feet to 12 feet in one year. What is the percent of change?
Answer:
100%
Step-by-step explanation:
It doubles in height, which makes it 100%
Answer:
100%
Step-by-step explanation:
The tree grew from 6 feet to 12 feet, which is a growth of 6 feet. 6 feet/6feet is 1, which in percent is 100%.
Now, you could say as the tree doubled in size, the change is 200%, however you must subtract the original height to gain the amount of change. So, 12-6 = 6, and 6/6 = 1, 1*100 = 100%.
Solve For X:
(-3/4)x - 9 = -27
i need help asap.
Kris is setting up tables for an awards banquet. Each table seats 16 people. What is the fewest number of tables
Kris needs to set up for 132 people?
A. 6 tables
B. 7 tables
C. 8 tables
D. 9 tables
Answer:
8.25 (9)
Step-by-step explanation
you divide 132 by 16
you get 8.25
round to nearest hundreths
you get a nine
Identify the range y=3^x
Answer:
The range of the function is:
[tex]\mathrm{Range\:of\:}3^x:\quad \begin{bmatrix}\mathrm{Solution:}\:&\:f\left(x\right)>0\:\\ \:\mathrm{Interval\:Notation:}&\:\left(0,\:\infty \:\right)\end{bmatrix}[/tex]
Please also check the attached graph.
Step-by-step explanation:
We also know that range is the set of values of the dependent variable for which a function is defined.
In other words,
Range refers to all the possible sets of output values on the y-axis.
It means the set of all the y-coordinates of the given points or ordered pairs on a graph will be the range.
Given the expression
[tex]y=3^x[/tex]
The range of an exponential function of the form
[tex]c\cdot \:n^{ax+b}+k\:\mathrm{is}\:\:f\left(x\right)>k[/tex]
[tex]k=0[/tex]
[tex]f\left(x\right)>0[/tex]
Therefore, the range of the function is:
[tex]\mathrm{Range\:of\:}3^x:\quad \begin{bmatrix}\mathrm{Solution:}\:&\:f\left(x\right)>0\:\\ \:\mathrm{Interval\:Notation:}&\:\left(0,\:\infty \:\right)\end{bmatrix}[/tex]
Please also check the attached graph.
The Vikings Football League has 150 players on 10 teams. What is the unit rate of the players to teams?
Answer: 15 players per team
Step-by-step explanation:
Unite rate of players on the team refers to the number of players on each of the teams that the Viking Football league has.
You can get this find this out by dividing the number of players, by the number of teams:
= 150/10
= 15 players per team
Solve For X
please help, thank you :}
If a woman get 7000 dollars for every 3 hour how much will she make for 81 hours
Answer:
567000 dollars
Step-by-step explanation:
Straightforward if 7000 for 3 hours then 3*27=81 and 7000*81=567000
Brainliest to whoever helps meee
9514 1404 393
Answer:
K'(4, 8)
Step-by-step explanation:
Dilation by a factor of 4 at the origin multiplies every coordinate by that factor:
(x, y) ⇒ (4x, 4y)
K(1, 2) ⇒ K'(4, 8)
Can someone please help me with this. The first person who answers this gets brainliest .
Answer:
Step-by-step explanation:
5<y
I think I got this wrong I need help
Answer:
I think 3/4 will be the answer if you let
(-5 2) =(x1 y1)
(3 8) =( x2 y2)
y1-y2/x2-x2
8-2/3+5
6/8
3/4
Please help it is important, please help ASAP
Answer:
I thinks its 200 grams im not for sure
In need of help with a math problem about domain :/
What is the difference between a linear function and a linear
equation?
Answer:
While all linear equations produce straight lines when graphed, not all linear equations produce linear functions. In order to be a linear function, a graph must be both linear (a straight line) and a function (matching each x-value to only one y-value). ... is a linear equation but does not describe a function.
Step-by-step explanation:
Jonathan buys 400 grams of trail mix that contain 18% cashew nuts. He mixes it with 200 grams of trail mix that contain 7% cashew nuts. How many grams of cashews are in the second mix?
Answer:
14 grams of cashews
Step-by-step explanation:
x/200 = 7/100
200*7=1400
1400/100 = 14
14 grams
(31 + 4) + (3 – m)i = 16 - 31
6th grade math help me plzzz
Answer
THE ANSWER IS C
Step-by-step explanation:
Srry I meant this
8m-6=2m-31
What is sin R ?I have no idea how to solve
n (not sure)
Step-by-step explanation:
plz help...........................................
Answer:
peanut
Step-by-step explanationo i dont know so im not english so i hope that answered your question
Eric bought a canoe for $330.00. The sales tax was 5%. What was the total cost for the canoe?
27÷819=
give me the quotient for 27÷819
Answer:
0.03296703
Step-by-step explanation: Just put this in the calculator and it will give you an answer. If youb dont have a calculator then look it up on the computer!
~Cake Queen (:
Find the value of x, such that the expression 1/4x + 4/3x - 5/6x + 1 equals 0
Answer:
The value of x is [tex] - \frac{4}{3} [/tex]
Step-by-step explanation:
☆Combine like terms and solve!
[tex] \frac{1}{4} x + \frac{4}{3} x - \frac{5}{6} x + 1 = 0 \\ \\ \frac{3}{4} x + 1 = 0 \\ \frac{ \: \: \: \: \: \: \: \: \: \: \: \: - 1 = - 1}{ \frac{ \frac{3}{4}x }{ \frac{3}{4} } = \frac{ - 1}{ \frac{3}{4} } } \\ \\ x = - \frac{4}{3} [/tex]
☆Happy to help!
