Answer: is x=2/3
Step-by-step explanation:
Mr. Chen write the expression 4 x (7 - 2^2) divided by 10 on the board. What is the value of the expression?
Answer: 120x
Step-by-step explanation:
Find x intercept y=4x-4
Answer:
(1, 0)
Step-by-step explanation:
X intercept is when y=0
0 = 4x - 4
4 = 4x
1 = x
X intercept is at x = 1
Here’s a picture , hopefully you guys can see
Answer:
Step-by-step explanation:
First you can find the area of the rectangle:
12 x 25 = 300
Then you can find the area of the triangle:
A = h x b / 2
A = 12 x 12 / 2
A = 72
Finally you add the rectangle and triangle together: 300 + 72 = 372
Help me with my math please
Answer:
- 9Step-by-step explanation:
3 cos π - 12 sin (5π/6) = 3(-1) - 12 sin (π - π/6) = -3 - 12 sin π/6 = -3 - 12(1/2) = -3 - 6 = -9PLZZ HELP im conused
Answer:
one jumbo cost $4 and one chocolate cost $2
Step-by-step explanation:
Let the price eif one jumbo be x
Let the price of one chocolate be y
If one jumbo and 2 chocolate cost$6, then
x+2y= 6 ... 1
If one jumbo and 4chocolate cost $8, then;
x +4y = 8... 2
Subtract both equations
2y -4y = 6-8
-2y= -2
y = 1
Substitute y = 1 into 1;
From 1, x+2y = 6
x +2(1) = 6
x = 6-2
x = 4
Hence one jumbo cost $4 and one chocolate cost $2
what is the measure of cxd
Answer:100 degrees
its 100
Jonas works at a local car wash. The table shows Jonas' page based on the number of hours he works.
Question 1
Find the unit rate at which Jonas' is paid.
Question 2
Graph Jonas' pay on the graph.
The unit rate is 0.2
can i have some help on this question pls
James and Anna share £42 in the ratio 4:3
Work out how much each person gets.
Studying atoms helps people by providing research to common problems found in our environment, universe, and ourselves. Such as cleaning up oil spills, identification of atoms in our universe, etc.
Answer:
Many accounts of the atom begin with a history of the growth in scientists' understanding of its structure, but here we will take the opposite approach, first discussing the atom in terms of what physicists and chemists today understand. Only then will we examine the many challenges scientists faced in developing the current atomic model: false starts, wrong theories, right roads not taken, incomplete models. In addition, we will explore the many insights added along the way as, piece by piece, the evidence concerning atomic behavior began to accumulate. People who are not scientifically trained tend to associate studies of the atom with physics, not chemistry. While it is true that physicists study atomic structure, and that much of what scientists know today about atoms comes from the work of physicists, atomic studies are even more integral to chemistry than to physics. At heart, chemistry is about the interaction of different atomic and molecular structures: their properties, their reactions, and the ways in which they bond.
Step-by-step explanation:
Sample Response: "Studying atoms is important because knowledge about atoms helps people to understand the world around them and produce materials used in daily life. Also, research done on atoms has contributed to the improvement of people's lives through medicine, to the protection of the environment, and to the discovery of new things about the world and the universe."
For Matthew's lemonade recipe, 4 lemons are required to make 6 cups of lemonade. At what rate are lemons being used in cups of lemonade per lemon?
Answer:
1.5 cups of lemonade per 1 lemon
Step-by-step explanation:
find the unit rate:
4/4=1
6/4=1.5
1.5 cups of lemonade per 1 lemon
I hope I read this correctly
Dylan is a salesperson who sells computers at an electronics store. He makes a base pay amount each day and then is paid a commission for every computer sale he makes. Let PP represent Dylan's total pay on a day on which he sells xx computers. A graph of PP is shown below. Write an equation for PP then state the slope of the graph and determine its interpretation in the context of the problem.
P=2.50x+100
The slope of the function is 2.50 which represents the commission Dylan makes for each computer sale. :)
Which will earn you more money, investing 100 dollars for 50 years at 6% interest, or investing 1000 dollars for 10 years at 6% interest?
Answer:
I think the second choice?
Step-by-step explanation:
Answer:
$1000 for 10 years at 6% interest.
Step-by-step explanation:
First, converting R percent to r a decimal
r = R/100 = 6%/100 = 0.06 per year,
then, solving our equation
I = 100 × 0.06 × 50 = 300
I = $ 300.00
The simple interest accumulated
on a principal of $ 100.00
at a rate of 6% per year
for 50 years is $ 300.00.
First, converting R percent to r a decimal
r = R/100 = 6%/100 = 0.06 per year,
then, solving our equation
I = 1000 × 0.06 × 10 = 600
I = $ 600.00
The simple interest accumulated
on a principal of $ 1,000.00
at a rate of 6% per year
for 10 years is $ 600.00.
Which system of equations is represented by the matrix below?
{5 -7|15}
{-3 0|7}
A. 5x - 7y = 15
3x = 7
B. 5x - 7y = 15
-3x = 7
C. 5x + 7y = 15
-3X=7
Find the product.
−3y2 (−4y3 + y − 9)
The product of the expressions is 12y⁵-3y³+27y²
What is an expression?Expressions in math are mathematical statements that have a minimum of two terms containing numbers or variables, or both, connected by an operator in between.
Given that, two expressions, -3y² and (-4y³+y-9) we need to find their products,
So,
= -3y² x (-4y³+y-9)
= -3y²(-4y³) -3y²(y) -3y²(-9)
= 12y⁵-3y³+27y²
Hence, the product of the expressions is 12y⁵-3y³+27y²
Learn more about expressions click;
https://brainly.com/question/14083225
#SPJ3
Use the terms 4, 12a 6 2a and 24 to make equivalent expressions use each term only once use substitution to prove that the expressions are equivalent
Answer:
12a + 24 = 6(2a + 4)
Step-by-step explanation:
Given the numbers :
4, 12a 6 2a and 24 ; create an equivalent expression :
12a, 2a, 4, 6, 24
We could separate tbe constant terms and those with variables :
12a, 2a ; 6, 4, 24
We could put the larger digit to one side
12a + 24 = 6(2a + 4)
This way the Right hand side is equal to the left hand side.
Check:
12a + 24 = 6(2a + 4)
12a + 24 = 12a + 24
Hence, the proof
Kendra ordered the remaining items. If she only had a $10.00 bill, then how much will she need to borrow from one of her friends?
Answer:
fbk;lm vn;djkfbnjklnbjknjobjnjnbjnbgjnbgjnbgjn
Step-by-step explanation:
is there one solution, no solution or infinite solutions for 7x+14=7(x+2)
Answer:
infinite solutions
Step-by-step explanation:
Answer:
Infinite Solutions
Step-by-step explanation:
To solve for the solution, distribute the 7 into (x+2), and the result is:
7x+14=7x+14
This means that the solution can be all values of x
For example, when x=1,
7(1)+14=7(1)+14
21=21
When x=2,
7(2)+14=7(2)+14
28=28
Which ordered pair is a solution of the system of inequalities below?
2x – y ≥ -2
8x – y < 5
( This is due today pls help)
Answer:
I got A
Step-by-step explanation:
Answer:A
Step-by-step explanation:
Find x.
x = 4
x = 5
x = 6
Answer:
Given triangles are similar
[tex] \frac{9}{6} = \frac{x}{4} \\\frac{3}{2} = \frac{x}{4} \\ x = \frac{(3 \times 4)}{2} \\ \boxed{x = 6}[/tex]
Value of x is 6.Two types of tickets are sold to a play. Floor
seats cost $45 each and balcony seats cost $25
each. A play sells 107 tickets and makes a total
of $3,375. How many of each type of ticket
Answer:
35 tickets at $35, 72 tickets at $25
Step-by-step explanation:
x+y=107 -> 5x+5y=535
45x+25y=3375
simplify, divide by 5 to get
9x+5y=675
Substract
9x+5y=675
- 5x+5y=535
4x=140 -> x=35
y=107-35 = 72
Satoshi started studying how the number of branches on his tree grows over time.
The relationship between the elapsed time t, in years, since Satoshi started studying the tree, and the
number of its branches, N(t), is modeled by the following function:
15
N(t) = 24 - 3
Complete the following sentence about the growth rate of the branches.
The number of branches triples every
years.
Answer:
The number of branches triples every 15 years.
Step-by-step explanation:
Satoshi started studying how the number of branches on his tree grows over time.
The relationship between the elapsed time t, in years, since Satoshi started studying the tree, and the number of its branches, N(t), is modeled by the following function:
N(t) = 24 - 3^t/15
Complete the following sentence about the growth rate of the branches. The number of branches triples every years.
The number of branches triples every 15 years.
What is a mathematical function, equation and expression? function : In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function.expression : A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.equation : A mathematical equation is used to equate two expressions.Given is that the relationship between the elapsed time [t], in years, since Satoshi started studying the tree, and the number of its branches [N(t)], is modeled by the following function → N(t) = 24 - 3^t/15
The function that models the situation is -
N(t) = 24 - 3ⁿ/15 .... Eq[1]
After tripling the number of branches, we can write -
3N(t) = 24 - 3ⁿ/15
N(t) = {24 - 3ⁿ/15}/3 ..... Eq [2]
Equating both equations, we get -
{24 - 3ⁿ/15} = {24 - 3ⁿ/15}/3
3{24 - 3ⁿ/15} = {24 - 3ⁿ/15}
72 - 3ⁿ/5 = 24 - 3ⁿ/15
72 - 24 = 3ⁿ/5 - 3ⁿ/15
48 = 3ⁿ(1/5 - 1/15)
n = 15
Therefore, the number of branches triples every 15 years.
To solve more questions on functions, expressions and polynomials, visit the link below -
brainly.com/question/17421223
#SPJ2
Which of these strategies would eliminate a variable in the system of equations? \begin{cases} 2x - 5y = 13 \\\\ -3x + 2y = 13 \end{cases} ⎩ ⎪ ⎪ ⎨ ⎪ ⎪ ⎧ 2x−5y=13 −3x+2y=13
Answer and Step-by-step explanation:
Given the system of equations:
2x – 5y = 13
–3x + 2y = 13
We can decide to eliminate either x or y in order to solve the simultaneous equations.
1. To eliminate x:
Multiply the first equation by the coefficient of x in the second equation and multiply the second equation by the coefficient of x in the first equation. By doing this the coefficients of x in the equations would be the same and subtracting them to be equal to zero becomes easy, thus eliminating that variable.
The coefficient of x in the second equation is –3, if we multiply the first equation by it we have:
–6x+15y = –39
The coefficient of x in the first equation is 2, if we multiply the second equation by it we have:
–6x+4y = 26
Subtracting the resulting equations we have:
11y = –65 and x is eliminated.
2. To eliminate y:
Multiply the first equation by the coefficient of y in the second equation and multiply the second equation by the coefficient of y in the first equation. By doing this the coefficients of y in the equations would be the same and subtracting them to be equal to zero becomes easy, thus eliminating that variable.
The coefficient of y in the second equation is 2, if we multiply the first equation by it we have:
4x–10y = 26
The coefficient of y in the first equation is –5, if we multiply the second equation by it we have:
15x–10y = –65
Subtracting the resulting equations we have:
–11x = 91 and y is eliminated.
I need to also know if it is
SAS
AA
SSS
NOT SIMILAR
Step-by-step explanation:
on the picture
if it's helpful ❤❤❤
THANK YOU
Solving an Absolute Value Equation
What is the solution set of -+-=-122
O no solution
8-12
(12)
[-12 12
Answer:
{-12,12}
Step-by-step explanation:
it looks like that I guess
look at pic broooos so just do it rn
Answer:
b) 83.2 c) 62.5
PLEASE ANSWER VERY FAST
picture below of question
What is the solution to y=-x+12
Jamie's older brother and his three friends want to split the cost of lunch they also want to leave a 15% 20% tip how much should each person pay
Answer: See explanation
Step-by-step explanation:
Your question isn't well written but let me help out by making some assumptions.
Let's say Jamie's older brother and his three friends want to split the cost of lunch that costs $30 and they also want to leave a 20% tip. How much should each person pay?
Cost of the lunch = $30
Tip = 20% × $30 = 0.2 × $30 = $6
Total amount to be paid = $30 + $6 = $36
Since there are four people and they want to share the cost, each person would pay:
= $36 / 4
= $9
HELP PLEASE.....EASY QUESTION!!!!
Answer:
90% of confidence interval for the true population of club members who use compost
(0.44424 , 0.45576)
Step-by-step explanation:
Step(i):-
Given that the size of the sample 'n' =200
Given that the sample proportion
p = 45% = 0.45
Level of significance = 90% or 10%
Critical value Z₀.₁₀ = 1.645
Step(ii):-
90% of confidence interval for the true population of club members who use compost
[tex](p^{-} - Z_{0.10} \sqrt{\frac{p(1-p^{-} )}{n} } , p^{-} + Z_{0.10} \sqrt{\frac{p(1-p^{-} )}{n} })[/tex]
[tex]((0.45 - 1.645\sqrt{\frac{0.45(1-0.45)}{200} } , 0.45 + 1.645\sqrt{\frac{0.45(1-0.45)}{200} })[/tex]
(0.45 - 0.00576 , 0.45 +0.00576)
(0.44424 , 0.45576)
Final answer:-
90% of confidence interval for the true population of club members who use compost
(0.44424 , 0.45576)
Monica got a $4,500 car loan, to be paid in 3 years. The interest rate is 5%. What will the interest rate is 5%. What will be the interest be at the end of the 3 years? What is the total she will need to pay back?
Amount of Interest:
Total amount paid back:
(Please include how you got the answer and not just take my points for no reason)
Answer:
$5,175
Step-by-step explanation:
First, converting R percent to r a decimal
r = R/100 = 5%/100 = 0.05 per year,
then, solving our equation
I = 4500 × 0.05 × 3 = 675
I = $ 675.00
The simple interest accumulated
on a principal of $ 4,500.00
at a rate of 5% per year
for 3 years is $ 675.00.
