Answer:Teo is 6 and Richard is 25
Step-by-step explanation: Let R and T stand for Richard and Teo's ages. We are told:
R+T=31
R=2T+13
Substitute:
R+T=31
2T+13+T=31
3T+13=31
3T=18
T=6
Since R+T=31, R+6=31, and R = 25
Which of the following statements does not describe the structure of an atom?
A) An atom has a small, dense center called the nucleus.
B) Inside the nucleus of an atom are protons and electrons.
C) Protons are positively charged sub-atomic particles.
D) Electrons are negatively charged sub-atomic particles.
Answer:
B) Inside the nucleus of an atom are protons and electrons.
Explanation:
Inside the nucleus of an atom are protons and neutrons. Electrons orbit (kind of?) away from the nucleus.
solve for x , y , right answers plss !!!!
Answer:
3 5 6 2 8
Step-by-step explanation:
angle 1 and angle 2 form a linear pair. if m angle 1= x + 47, and m angle 2 = x-12 find the measure of angle 1
Answer:
215/2
Step-by-step explanation:
A linear pair means that the angles equal 180 degrees.
If added together 1 and 2 equal to 180 degrees, then the equation should be x+47+x-12=180. Then solve and simplify.
x+47+x-12=180
2x-35=180
2x=215
x=215/2
A ride sharing company offers two options: riding in small cars that can carry up to 3 passengers each, or riding in large vans that can carry up to 6 passengers each. A group of 27 people is going to use the ride sharing service to take a trip. The trip in a small car costs $10 and the trip in a large van costs $15. The group ends up spending $80 total. An equation that represents one of the constraints is 3x+6y=a. What is the value of a?
Answer:
a = 27
Step-by-step explanation:
3x + 6y = a
From the given information, 3 and 6 are the numbers of passengers that cars and vans can take. That means x and y must be the numbers of cars and vans, and a is the total number of passengers.
a = 27
help i’m in school and failing
Answer:
have you been cheating and your answer i think is number 3
Step-by-step explanation:
which type of agency is responsible for maintaining public lands held in trust
Answer:
resource management agency
Step-by-step explanation:
Solve for x .. can someone please help me
Answer:
[tex]x = 9[/tex]
Step-by-step explanation:
[tex]7x + 49 = 2x + 94 \\ 7x - 2x = 94 - 49 \\ 5x = 45 \\ \\ x = \frac{45}{5} \\ \\ x = 9[/tex]
I hope I helped you^_^
Part 1 state the domain and range of the given relation.
Part 2 is the relation a function
{(-1, 2),(1, 2),(3, 2), (6, 2)}
Please help
K is the midpoint of JL Jk=9x-5 and KL=7x+3 Find JL
Steven collected $5.40 from 3 people for a train ride. How much was the train ride per person?
A. $2
B. $1.80
Kylee is making a cake. The box says for every 1/4 cup of water she needs to use 2/4 of the cake mixture. She uses 3 1/4 cups of water. How much cake mixture does she use? (show your answer as a decimal and as a fraction.)
Answer:
Kylee makes 6 1/2, or 6.5 cups of the cake mixture.
Step-by-step explanation:
She uses double the cake mixture as water. She uses 3 1/4 cups of water, or 13/4 as an improper fraction, so she uses double that of cake mixture, which is 6 1/2, or 26/4 cups of cake mixture.
As a decimal that is 6.5.
how much 14 do u need to make 100
Answer:
You cant
Step-by-step explanation:
To make 100, you cant have a solid number of 14's to make 100. The closest to 100 is 14 * 7.
A car covers the distance between two cities in 6 hours. A van covers the same distance in 5.5 hours by travelling 4 km/h faster than the car. What is the distance between the two cities? Find the speed of the car and the van.
Step-by-step explanation:
[tex]\large\underline{\sf{Solution-}}[/tex]
Given that,
A car covers the distance between two cities in 6 hours.
A van covers the same distance in 5.5 hours.
The speed of the van is 4 km per hour faster than the speed of car.
Let assume that
Speed of the car be x km per hour
So,
Speed of van is x + 4 km per hour.
Let further assume that
Distance between two cities be y km.
We know, Distance covered = Speed × Time.
➢ Now, Distance (y) covered by car at the speed of x km per hour in 6 hours is
[tex]\rm :\longmapsto\:\boxed{\tt{ y = 6x}} - - - - (1)[/tex]
➢ Also, Distance (y) covered by van at the speed of x + 4 km per hour in 5.5 hours is
[tex]\rm :\longmapsto\:\boxed{\tt{ y = 5.5(x + 4)}} - - - - (2)[/tex]
So, from equation (1) and (2), we have
[tex]\rm :\longmapsto\:6x = 5.5(x + 4)[/tex]
[tex]\rm :\longmapsto\:6x = 5.5x + 22[/tex]
[tex]\rm :\longmapsto\:6x - 5.5x = 22[/tex]
[tex]\rm :\longmapsto\:0.5x = 22[/tex]
[tex]\rm :\longmapsto\:\dfrac{5}{10} \times x = 22[/tex]
[tex]\rm :\longmapsto\:\dfrac{1}{2} \times x = 22[/tex]
[tex]\bf\implies \:x = 44[/tex]
On substituting the value of x, in equation (1), we have
[tex]\rm :\longmapsto\:y = 6 \times 44[/tex]
[tex]\bf\implies \:y = 264[/tex]
So,
[tex]\begin{gathered}\begin{gathered}\bf\: \rm :\longmapsto\:\begin{cases} &\sf{Distance \: between \: cities = 264 \: km} \\ \\ &\sf{Speed \: of \: car \: = \: 44 \: km \: per \: hour}\\ \\ &\sf{Speed \: of \: van \: = \: 48 \: km \: per \: hour} \end{cases}\end{gathered}\end{gathered}[/tex]
A is the point (5,7) and B is the point (-1,-5) find an equation of the line through A that is perpendicular to the line segment AB, giving your answer in the form ax+by+c = 0 where a b and c are integers
Answer:
Step-by-step explanation:
Please help me with this my math isn't the best
7 = -10s -3 is equal to " S =1" ???
what is the correct answer i am correct or not??
Answer:
[tex]s=-1[/tex]
Step-by-step explanation:
[tex]7=-10s-3[/tex]
[tex]-10s-3=7[/tex]
Add 3 to both sides:
[tex]-10s-3+3=7+3[/tex]
[tex]-10s=10[/tex]
Divide both sides by -10:
[tex]\frac{-10s}{-10}=\frac{10}{-10}[/tex]
[tex]s=-1[/tex]
____________________
What is the point halfway between (a, 2b) and (-a, 8b)?
The midpoint of the x values a and -a would be 0 because of a was a number the mid point between the negative and positive of the same number is 0
The midpoint of 2b and 8b is found by adding them together and dividing by 2:
2b + 8b = 10b / 2 = 5b
The midpoint is (0,5b)
Select the correct answer from each drop-down menu. Consider this equation. 1/x + 2/x+10 =1/3 Complete the statements to make them true. The least common denominator is . The equation will have valid solutions.
Answer:
[tex] \frac{1}{x} + \frac{2}{x} + 10 = \frac{1}{3} ) \times3 x \\ 3 + 6 +30x = x \\ 30x - x = - 9 \\ 29x = - 9 \\ x = - \frac{9}{29} [/tex]
Answer:
i have the second part!
Step-by-step explanation:
the equation will have 2 valid solutions
Evaluate the expression when b=-5 and c=7
b-3c
Answer:
b=5 should be the correct answer
Answer:
-26
Step-by-step explanation:
b = -5 and c = 7, Plug in:
b - 3c
-5 - 3(7)
-5 - 21
-26
Hopefully this helps!
Brainliest please?
scribe
de exponente.
1- 2 x 2 x 2 x 2 =
2-3x3-
3-2/x 4 X 4 X 4 x 4 =
A 5x5 =
Answer:
1 - 2 exponent 4
2 - 3 exponent 2
A - 5 exponent 2
I don't understand 3
Step-by-step explanation:
An artist mixes 1.6 ounces of green paint with 1.85 ounces of white paint. She then divides the paint into 6 equal parts.How much paint is in each part?(Round to the nearest tenth.)
Answer:
0.6
Step-by-step explanation:
I took the quiz
Answer:0.6
Step-by-step explanation:
ILL GIVE BRAINLIEST PLS HELP
Each statement describes a transformation of the graph of y = x. Which statement correctly describes the graph of y = x + 9.5?
A.
It is the graph of y = x translated 9.5 units to the right.
B.
It is the graph of y = x translated 9.5 units up.
C.
It is the graph of y = x where the slope is increased by 9.5.
D.
It is the graph of y = x translated 9.5 units down.
Answer:
Im pretty sure is B but it might be C.
Step-by-step explanation:
The total cost of renting a banquet hall is a function of the number of hours the hall is rented. The owner of the banquet hall charges $85 per half hour up to a maximum of 4 hours plus a $50 cleaning fee. What is the greatest value in the range for this situation?
What is the slope of the line that passes through the points (26, 7) and (-39, 12)
Answer:
It would be $390 for the 4 hours and the cleaning fees. And the slope would be -13 if you are going from 12 to 7 but would be 13 if you are going from 7 to 12...
Step-by-step explanation:
Given ∠A and ∠B are vertical angles with m∠A=50x+10 and m∠B=70x−10 .
What is x?
Enter your answer in the box.
Slope intercept form
Answer:
y=-3x+1
Step-by-step explanation:
1) the slope-interception form is: y=slope*x+intercept;
2) if A(0;1) and B(2;-5) then it is possible to make up the equation of the required line:
[tex]\frac{x-X_A}{X_B-X_A} =\frac{y-Y_A}{Y_B-Y_A}; \ => \ \frac{x}{2}=\frac{y-1}{-6};[/tex]
3) the equation in the item 2 can be written in slope-interception form:
x=(y-1)/(-3); ⇔ y-1= -3x; ⇔ y= -3x+1.
P.S. note, the suggested way of solution is not the shortest one.
Select ALL of the transformations relative to y = x for the equation:
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
The Correct choices are :
Translation up y - axis 1 unitReflection in the y - axisAnswer:
The last two I think
Step-by-step explanation:
Can I pls have brainly?
In the triangle, m∠JKL = 3° and m∠KJL = 17°. Find m∠JLM.
Answer:
160
Step-by-step explanation:
the middle letters ttell you which corner of the triangle has that degree.
all corners added together must equal 180 in a triangle
jkl has k in the middle so k is 3°
kjl has J in the middle so J is 17°
jlm has L in the middle and is unknown
K + J + L = 180
3+17+L = 180
20 + L = 180
L = 160
Answer:160 degrees
Step-by-step explanation:
180-3-17=160
All triangles neasure 180 degrees
Please help me solve this ASAP
Answer:
6. [tex]\pi = \frac{C}{2r}[/tex]
7. Translation
Step-by-step explanation:
6: To solve for π means to isolate it on one side.
Step 1: Divide both sides by 2r.
[tex]\frac{C}{2r} = \frac{2\pi r}{2r}[/tex] [tex]\pi = \frac{C}{2r}[/tex]Therefore, π = circumference over twice the radius, or circumference over diameter.
7: #7 is a translation because each point is moving vertically 3 units and horizontally 1 unit (3 units up and 1 unit to the right). If it were a reflection, we'd be able to spot a line of reflection, but there isn't any here. Also, if it were a rotation, the triangle would change the way its angled, and it'd be in a different quadrant
Therefore, this is a translation.
Two numbers multiply to be 20 and add to be 12. What are the numbers?
Answer:2 and 10
Step-by-step explanation:
is 2.346982105 an irracional number?
Answer:
Step-by-step explanation:
Yes. because In mathematics, the irrational numbers are all the real numbers which are not rational numbers. That is, irrational numbers cannot be expressed as the ratio of two integers
Answer:
yes
Step-by-step explanation:
Irrational numbers are numbers that simply are not rational, and cannot be written as a fraction, though they cna be written as a decimal. Irrational numbers msot of the time have a lnog row of non-repeating numbers after the decimal. So, yes.
2.346982105 is an irracional number
