Answer:
A. T=3
B. A=5
C. M=2
D. C=7
E. F =4
Kyle has run 7 laps around the track. If he plans to run 15 laps, how many more laps must he run?
would i divide or multiply
Answer: 8 more
Step-by-step explanation:
use subtraction
Answer:
8 more laps
Step-by-step explanation:15-7=8
the difference of 15 and 7 divided by 2
A planet has a circular orbit around a star. It is a distance of 98,000,000 km from the centre of the star. It orbits at an average speed of 45,000 km/h. How many Earth days does it take the planet to orbit the star? Give your answer to 2 sf.
Answer:
91 days
Step-by-step explanation:
Given that,
A planet is at a distance of 98,000,000 km from the centre of the star.
It orbits at an average speed of 45,000 km/h.
The speed of an object is given by the distance covered divided by the time taken. So,
[tex]v=\dfrac{d}{t}\\\\t=\dfrac{d}{v}\\\\t=\dfrac{98,000,000}{45,000}\\\\t= $$2177.77\ h[/tex]
or
t = 90.74 days ≅ 91 days
So, the planet take 91 days to orbit the star.
Solve this problem.
A pair of inline skates that usually sells for $40 is on sale at a 30% discount.
What is the sale price?
Answer:
$28
Step-by-step explanation:
original price = $40
discount = 30%
discount amount = 30% of original price
=30/100 * 40
=$1200/100
=$12
sale price = original price - discount amount
=$40 - $12
=$28
Me fui a Cacao Show a comprar bombones blancos y bombones de chocolate negro: Si compro,2 bombones de chocolate negro y 5 de chocolate blanco esa suma nos da $40. Si compro 4 bombones de chocolate negro y 2 de chocolate blanco gasto $26. ¿Cuánto cuesta cada Bombón negro? Y los de chocolate blanco, cúanto cuesta la unidad?
Answer:
Cada bombón negro cuesta $3,125 y cada bombón blanco cuesta $6,75
Step-by-step explanation:
Un sistema de ecuaciones lineales es un conjunto de dos o más ecuaciones de primer grado, en el cual se relacionan dos o más incógnitas.
Resolver un sistema de ecuaciones consiste en buscar los valores de las incógnitas, con los cuales al reemplazar, deben dar la solución planteada en ambas ecuaciones. Es decir, resolver un sistema de ecuaciones consiste en encontrar el valor de cada incógnita para que se cumplan todas las ecuaciones del sistema.
Si compro 2 bombones de chocolate negro y 5 de chocolate blanco, la suma da $40. Si compro 4 bombones de chocolate negro y 2 de chocolate blanco, gasto $26. Siendo:
x: precio de cada bombón de chocolate negroy: precio de cada bombón de chocolate blancoEntonces el sistema de ecuaciones a resolver es:
[tex]\left \{ {{2*x+5*y=40} \atop {4*x+2*y=26}} \right.[/tex]
El método de sustitución consiste en aislar en una ecuación una de las dos incógnitas para sustituirla en la otra ecuación.
Entonces, aislando la variable x de la primer ecuación:
[tex]x=\frac{40-5*y}{2}[/tex]
Sustituyendo en la segunda ecuación:
[tex]4*\frac{40-5*y}{2}+2*y=26[/tex]
Resolviendo:
[tex]\frac{4}{2}* (40-5*y)+2*y=26[/tex]
2* (40-5*y)+2*y=26
2*40- 2*5*y+2*y=26
80- 10*y+2*y=26
- 10*y+2*y=26 -80
-8*y= -54
y= (-54)÷ (-8)
y= 6,75
Reemplazando en la expresión [tex]x=\frac{40-5*y}{2}[/tex], se obtiene:
[tex]x=\frac{40-5*6,75}{2}[/tex]
[tex]x=\frac{40-33,75}{2}[/tex]
[tex]x=\frac{6,25}{2}[/tex]
x= 3,125
Entonces, cada bombón negro cuesta $3,125 y cada bombón blanco cuesta $6,75
AVERAGES 1. Find the mean, mode and median of: (a) 1.5, 1.2, 1.3, 1.5, 1.4 (b) 2.3, 1.2, 2.4, 1.2
Answer:
Look at Step by step
Step-by-step explanation:
Mean: (a) 1.38
Mean: (b) 1.7
median (a) 1.3
Pacx '?
a]g.;//
>Dc.cccccccccccccccccccccccccccccx;;;;;;;;;;;;;;;;;;;;;;;;;|;z
;zzx';
[c' / v\Zcccccccc
Answer:
A)mean is 1.38 mode is 1.5 median is 1.4
B)mean is 1.775 mode is 1.2 median is 1.75
Step-by-step explanation:
the mean is the average of the numbers added together divided by how many numbers are listed. 1.5+1.2+1.3+1.5+1.4=6.9 6.9 divided by 5 = 1.38
mode is the number that shows up in the list the most.
median is the number that is in the middle of the list of numbers when listed highest to lowest or vice versa.
In the instance of (B) since there were only 4 numbers and could not get exact middle number you take the 2 middle numbers and add them together and divide by 2 to get the average of those 2 numbers
ethan invests £500 in the bank for 2 years he earned £40 simple interest
Answer:
Rate = 4%
Step-by-step explanation:
principal = £500
time = 2 years
simple interest = £40
rate = ?
simple interest = PTR / 100
£40 = £500*2*R /100
£40*100 = £1000*R
£4000/£1000 = R
4 % = R
if f(x)=2x+1 and g(x)=x^2-7 find (f/g)(x)
Step-by-step explanation:
f(x)=2x+1 and g(x)=x²-7
(f/g)(x) = (2x+1)/(x²-7)
Answer:
pls answer my questions plsss
Can someone help me with this. Will mark brainliest. Thank you.
Answer:
∠SVU = 49°
Step-by-step explanation:
∠SVU is an inscribed angle and arc SU is the arc it intercepts
If you didn't know an inscribed angle is equal to half the measure of its intercepted arc.
Hence ∠SVU = arc SU / 2
if arc SU = 98
Then ∠SVU = 98/2 = 49
In parallelogram KLMN if LP=7 find LN.
Answer:
LN = 14
Step-by-step explanation:
diagonals of a parallelogram bisect each other so
LN = 2LP
LN = 2*7
LN = 14
Micheal is collecting sea glass from the beach. He begins with 14 pieces in his collection and adds 2 new pieces each day. Determine how may days it will Micheal to have 80 pieces of sea glass in his collection.
Answer:
It would take Micheal 22 days.
Step-by-step explanation:
The end goal is to have 80 and we begin with 14
So, 80 - 14 = 66 pieces left to collect
If he collects 3 per day we'll divide 66 by 3, which equals 22
Therefore it takes him 22 days
Which graph or equation represents a Nonpoportional relationship A B C or D
Answer:
A
Step-by-step explanation:
A graph that represents a proportional relationship usually has the line cutting through the line of origin (0, 0).
The graph in option A does not have the line passing through the point of origin (0, 0), therefore, it does not represent a proportional relationship.
For an equation that represents a proportional relationship, it is written in the form of y = kx
Where, k is the constant of proportionality.
Therefore, the two equations given represents a proportional relationship.
Please help me solve my problem!!!
Answer:
The answer to this problem is True.
What additional information is needed to prove the triangles are congruent by HL?
Answer:
bce is 90
Step-by-step explanation:
MATH HELP PLEASE! Last question due in 20 minutes
9514 1404 393
Answer:
all space diagonals meet in the center of the prism
Step-by-step explanation:
The center of the prism is halfway between any pair of parallel faces. The dimension to it is half the dimension between the faces.
One way to find it is by seeing where the space diagonals meet.
help -------------------------------
Answer:
E + F = 2c² + 5c + 4
Step-by-step explanation:
[tex]E = 6c^2 - 2c - 1 \\\\F = -4c^2 + 7c +5\\\\E + F = (6c^2 - 2 c -1) + ( -4c^2 + 7c +5)[/tex]
[tex]=(6c^2 -4c^2) +(-2c + 7c) + (-1 + 5)[/tex] [tex][\ arranging \ terms\ ][/tex]
[tex]= 2c^2 + 5c + 4[/tex]
___________________________________
Let's Solve it!Given that:[tex]\quad\quad\quad\quad\tt{E = 6 {c}^{2} - 2c - 1}[/tex]
[tex]\quad\quad\quad\quad\tt{ F = - 4 {c}^{2} + 7c + 5}[/tex]
Formula:[tex]\quad\quad\quad\quad\tt{E + F = ?}[/tex]
Solution:[tex]\quad\quad\quad\tt{(6 {c}^{2} - 2c - 1) + ( - 4 {c}^{2} + 7c + 5)}[/tex]
Step by step:[tex] \quad\quad\quad\quad\tt{ ⟶(6 {c}^{2} ) + ( - 4 {c}^{2}) = \boxed{ \pink{2 {c}^{2} }}}[/tex]
[tex] \quad\quad\quad\quad\tt{ ⟶ ( - 2c) + ( 7c) = \boxed{ \pink{5c }}}[/tex]
[tex] \quad\quad\quad\quad\tt{ ⟶ ( - 1) + ( 5) = \boxed{ \pink{4 }}}[/tex]
Now, it will look like this:[tex] \quad\quad\quad\quad\tt{E + F =2 {c}^{2} + 5c + 4 }[/tex]
So, E + F is equal to:[tex] \quad\quad\quad\quad\tt{\boxed{ \boxed{ \color{magenta}{ 2 {c}^{2} + 5c + 4 }}}}[/tex]
___________________________________
#CarryOnLearning
✍︎ C.Rose❀
Suppose that every day from Monday through Friday,
you keep the following routine:
You walk directly to school in the moming. On this walk,
you take 1500 steps.
You play at recess.
You play a sport.
You walk directly home from school.
You think you take about as many steps at recess as you
do playing your sport
Your
FitBit says that you have taken a total of 38.000 steps
during the week.
How many steps do you take every day at recess?
Answer: You take around 4,500 steps a day
Step-by-step explanation:
(2x6)3/4 using rational exponents
Answer:
the answer is 9 divided by 1
I need to find the measure please help
Answer:
44 degrees
Step-by-step explanation:
The angles x + 2 and x are complementary; they sum up to 90 degrees.
Thus, x + 2 + x = 90 degrees, or:
2x = 88, or
x = 44.
The value of x is 44 degrees.
Pls help no files just type it in I will mark you
Solve the system of equations by graphing on a separate sheet of paper. Write your solutions as ordered pairs from least to greatest with respect to the x-coordinate.
y=x2−4x+1
y=x−3
Answer: (1,-2) , (4,1)
Step-by-step explanation:
Given
The two curves are [tex]y=x^2-4x+1[/tex] and [tex]y=x-3[/tex]
From the figure, it observed that the two curves intersect at (1,-2) and (4,1).
So, the ordered pair from least to greatest is (1,-2) and (4,1)
Question 1 Multiple Choice Worth 1 points)
(01.05 LC)
Solve for x: -7 < X -1 <8
Answer:
-6 < x <9
Step-by-step explanation:
-7 < X -1 <8
Add 1 to all sides
-7+1 < X -1+1 <8+1
-6 < x <9
Answer:
D
Step-by-step explanation:
Solve the problem correctly and show ur work
1 . 3/5 ( 15x + 30 )
Answer:
9(x + 2)
Step-by-step explanation:
3/5(x+30)
multiply fractions
3(15x + 30)/5
factor 3(15x + 30) = 45(x + 2)
divide the numbers
45(x + 2)/5
45/5=9
= 9(x + 2)
Answer:
9x + 18
Step-by-step explanation:
[tex]\frac{3}{5} ( 15x + 30 )[/tex]
9x + 18
Maria has an 8-sided die that is numbered from 1 to 8. She rolls the die 96 times. About how many times can she expect to roll an 8? about 8 times about 12 times about 16 times about 768 times
Answer:
12 Times
Step-by-step explanation:
According To The Question,
The Probability of Rolling An 8 is 1/8 .
Thus , 1/8=X/96
So, X=96/8⇔X=12
what us the midpoint of A(-8,2) and B(4,-2)
Answer:
(-2 , 2)
Step-by-step explanation:
A(-8 , 2) = (x1 , y1)
B(4 , -2) = (x2 , y2)
midpoint = (x1 + x2/2 , y1 + y2/2)
=(-8 + 4/2 , 2-(-2)/2)
=(-4/2 , 2+2/2)
(-2 , 2)
(3 , 7) = (x1 , y1)
(9 , 2) = (x2 , y2)
distance of PQ = [tex]\sqrt{(x2 - x1)^2 + (y2 - y1)^2}[/tex]
=[tex]\sqrt{(9 - 3)^2 + (2 - 7)^2}[/tex]
=[tex]\sqrt{(6)^2 + (-5)^2}[/tex]
=[tex]\sqrt{36 + 25}[/tex]
=[tex]\sqrt{61}[/tex]
=7.8 unit
Choose the expression that represents a linear expression 6x+6. -6x^2+8x-9. 8x^3+9x^2-10x+11. 7x^4-8x^3+9x^2-10x+11
Answer:
[tex]6x + 6[/tex]
Step-by-step explanation:
a linear expression is the form
[tex]y = mx + b[/tex]
Name the marked angle in 2 different ways.
Answer:
∠GIH or ∠HIG
Explanation:
Just make sure the vertex of the angle is the middle letter. In this case, it is I.
i don’t understand help me pls
Answer:
AC = 7.42
Step-by-step explanation:
Draw a picture!
∠ACB = 90 - 38 = 52º
Use Law of Sines
AC/sin38 = 9.5/sin52
AC = 9.5/sin52 * sin38
Use calculator
AC = 7.422213451813815
AC = 7.42 Rounded to 3SF
Can someone help me? It's urgent and thank you!
Also pls look at the other 2 pictures!
Answer:
14x^3 LCD
(35x+4) / 14x^3
Step-by-step explanation:
5 /2x^2 + 2 / 7x^3
We need to find the least common denominator
2x^2 =2 *x*x
7x^2 = 7*x*x*x
x*x is common so we need to multiply that by 2*7*x
The least common denominator is 2*7*x*x*x = 14 x^3
To add the two, multiply to get the common denominator)
5/2x^2 * (7x/7x) + 2/7x^3 *(2/2)
35x/14x^3 + 4/14x^3
(35x+4) / 14x^3
I need help understanding these it’s my school work
Answer:
I believe that
1) Isosceles, acute
3) Scalene, obtuse
5) Isosceles, right
7) Equilateral, acute
Step-by-step explanation:
This should help in the future. :)