Answer:
80%
Step-by-step explanation:
60/75 = 4/5 = 0.80
Therefore, the percentage of change is 80%.
Glenn walked from 6:45 a.m. to 8:15 a.m. He walked a distance of 51 miles. What
was Glenn's average walking rate?
Answer:
1.765mph
Step-by-step explanation:
that's an hour and a half which is 90 min
90/51
A student was selected as a captain of a cooking team in a consumer and family studies class. The student could pick 2 of 5 girls and 3 of 7 boys to be on their team. What is the total number of different teams that this captain could select?
Answer:
This captain could select 350 different teams.
Step-by-step explanation:
The order in which the girls and the boys are picked is not important. For example, picking Daniela and Laura is the same as picking Laura and Daniela. So we use the combinations formula to solve this question.
Combinations Formula:
[tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
Girls:
2 from a set of 5. So
[tex]C_{5,2} = \frac{5!}{2!(5-2)!} = 10[/tex]
Boys:
3 from a set of 7. So
[tex]C_{7,3} = \frac{7!}{3!(7-3)!} = 35[/tex]
Total:
[tex]10*35 = 350[/tex]
This captain could select 350 different teams.
5. For the equation: x = sin[tex]t[/tex] + 3 and y = cos[tex]t[/tex], find [tex]\frac{dy}{dx}[/tex].
______________________________
(Below)which is the first step when multiplying or divided mixed numbers
Answer:
write the whole number and mixed number as improper fractions i believe
Answer:
Convert the mixed numbers into improper fractions.
evaluate the difference between 99.9 and 8.52
Step-by-step explanation:
The difference between 99.9 and 8.52
=91.38
Subtraction is a mathematical operation that reflects the removal of things from a collection. The difference between 99.9 and 8.52 is 91.38.
What is subtraction?Subtraction is a mathematical operation that reflects the removal of things from a collection. The negative symbol represents subtraction.
The difference between 99.9 and 8.52 is,
9 9 . 9 0
- 0 8 . 5 2
----------------------
9 1 . 3 8
Hence, the difference between 99.9 and 8.52 is 91.38.
Learn more about Subtraction:
https://brainly.com/question/1927340
#SPJ2
What is the resistance of a 1.00X10^2 -Ω , a 2.50-kΩ , and a 4.00-k Ω resistor connected in parallel?
Answer:
Therefore, the total Resistance: R = 93.9 Ω
Step-by-step explanation:
Given
R₁ = 1 × 10²
R₂ = 2.5 kΩ = 2.5 × 10³ Ω
R₃ = 4 kΩ = 4 × 10³ Ω
Given that the given resisters are connected parallel, so using the formula to calculate the total Resistance R:
[tex]\frac{1}{R}\:=\:\frac{1}{R_1}\:+\:\frac{1}{R_2}+\frac{1}{R_3}[/tex]
susbtituting R₁ = 1 × 10², R₂ = 2.5 × 10³ Ω, and R₃ = 4 × 10³ Ω
[tex]\frac{1}{R}=\frac{1}{1\times \:10^2}+\frac{1}{2.5\times \:10^3}+\frac{1}{4\times \:10^3}[/tex]
Multiply by LCM of R, 100, 2500, and 4000: 20000 R
[tex]\frac{1}{R}\cdot \:20000R=\frac{1}{1\cdot \:10^2}\cdot \:20000R+\frac{1}{2.5\cdot \:10^3}\cdot \:20000R+\frac{1}{4\cdot \:10^3}\cdot \:20000R[/tex]
simplify
[tex]20000=213R[/tex]
Switch sides
[tex]213R=20000[/tex]
Divide both sides by 213
[tex]\frac{213R}{213}=\frac{20000}{213}[/tex]
Simplify
[tex]R=\frac{20000}{213}[/tex]
[tex]R = 93.9[/tex] Ω
Therefore, the total Resistance: R = 93.9 Ω
1.Nuestro país tiene el número más grande de especies por unidad de área
en el planeta. La fauna es muy variada especialmente en las selvas
amazónicas, donde hay gran cantidad de especies únicas en el mundo.
Cuenta con más de 1 800 especiesdeaves.Escribealmenos6especies
de animales que hay en nuestro país.
2.El oso perezoso tarda aproximadamente 0,5 minutos enmoverunaextremidad
yrecorre0,25metrospor minuto. Es bastante miope, oye poco y su olfato
apenas le sirve para diferenciar las plantas de las que se alimenta. ¿Qué
distancia alcanza a recorrer el oso perezoso durante 5 minutos? Averigua el
peso aproximado de un oso perezoso.
3.Una familia ha consumido en un día de verano dos botellasdelitroymediode
agua,4botellas de1/3de litro de jugo, 5 limonadas de ¼ de litro. ¿Cuántos
litrosdelíquidohabebido?Expresaelresultadocon un númeromixto.
4.Resulta sorprendente conocer la cantidad de tiempo que necesitan
dormir algunos animales durante el día. Con los siguientes datos de la tabla
respondelas siguientes preguntas.ANIMAL PARTE DEL DÍA (24 horas )
QUE DEDICAN DORMIR.
Oso perezoso 0,8
Oveja 0,125
Gorila 0,5
Gato 0,625
armadillo 0,75
Responde argumentando tu respuesta, anota en tu cuaderno:
¿Cuánto tiempo en horas y minutos duerme el oso perezoso en un
día?
¿Podemos afirmar que los animales más pequeños necesitan
menos tiempo de descanso?
Tina multiplies 46 times 23 2/3. what is the product of this problem.
100 POINTSS!!! Can someone help me real quick? Only answer if you’re confident that it’s right please :)
Answer:
I think its uh
Step-by-step explanation:
the first= it is. f= 3x+3/x^2
the second= it is. f= x-3/x^2
sorry if this is wrong btw, i tried my best U-U
Answer:
they're not inverses.
Step-by-step explanation:
the inverse of f(x)= 3/x +3 would be f(x) 3 / x-3
for the second equation the inverse of that one would be h(x) = -3/ x-1
i hope this helps.
Someone help me with this
Answer:
-2
Step-by-step explanation:
-10 + 3 = -7
Find f(2), f(1), f(0), and f(-1) for f(x) = 3x + 8.
Answer:
Step-by-step explanation:
Solution
When, x=2
f(2)=3×2+8
=14
Again,
When, x=1
f(1)=3×1+8
=11
When, x=0
f(0)=3×0+8
=8
When, x=-1
f(-1)= 3×(-1)+8
=5
If you found my answer useful then please mark me brainliest.
Solve the following system of equations for all three variables.
2x + 2y + z = 6
-10x– y + 5z = -5
8x + 4y + 3z = 6
Oranges sell 8 for $1.84. Find the unit rate.
Step-by-step explanation:
oranges sell 8 for 1.84$
so,
1 unit orange =[tex]\tt{\blue{\dfrac{1.84}{8}=0.23\$ }}[/tex] ⠀
Write a fraction that is equal to 5
Find the Values of X.
PLS I NEED HELPPPPP
Kelly was 21 inches tall when she was born. She has grown around 6 inches
per year.
What is the initial value of this linear relationship?
What is rate of change of this linear relationship?
1.4(4.4x2.3) how do I distribute this
Answer:
14.168
Step-by-step explanation:
4.4 times 2.3= 10.12
1.4(10.12) = 14.168
What is the measurement of 1?
Answer: 60
Step-by-step explanation:
Add 68 and 52 you get 120 and a triangle is 180 so subtract 180 by 120 and you get 60
please help i don’t know how to do this
Answer:
The Missing Angle is 35°
Step-by-step explanation:
Given :-
∠ DFE = 65° , ∠ RDE = 100°To Find :-
∠ DEF (?)Solution :-
We know that angle made by a straight line is 180°So ,
∠ RDE + ∠ FDE = 180°
100° + ∠ FDE = 180°
∠ FDE = 80°
The sum of all angles in a triangle is 180°
Therefore ,
∠ DEF + ∠ DFE + ∠FDE = 180°
∠ DEF + 65° + 80° = 180°
∠ DEF = 35°
-6(7 + x) plzzzz help
Answer:
-6x-42
Step-by-step explanation:
Open parenthesis.
-42-6x is what you get once opened.
Answer:
6x−42
Step-by-step explanation:
I NEED HELP ASAP PLS DO STEP BY STEP WILL GIVE BRAINLIEST!!!!!!!!!!!!!
Answer:
x=98
Step-by-step explanation:
Lets reduce then multiply
[tex]7 \times \frac{x}{7} = 7 \times 14 \\ \\ x = 7 \times 14 \\ x = 98[/tex]
Hey who can solve this
Answer:
I need help on that too help pls
Step-by-step explanation:
I need help on number 4 plsss geometry beating me up rn :(
Answer: The link doesnt work :/
Step-by-step explanation:
On a trip to Spain,Kelly brought a piece of jewelry that cost $50.75.She paid for it with her credit card, which charges a foreign transaction fee of 4%. What is the foreign transaction fee?
Step-by-step explanation:
helpp
please i rlly need thiss
Answer:
16
Step-by-step explanation:
Answer: 16
Step-by-step explanation:
4 to the second power is 4x4 and 4x4 is 16.
A pizza slice is in the shape of a circular sector OAB, with the central angle 0 = 50 deg and a radius of 7cm. 0 A B В Find the perimeter of the pizza slice. (no answer)
Answer:
The perimeter of the pizza slice is 20.1 cm
Step-by-step explanation:
Perimeter of a Sector of a Circle
The arc length of a sector of a circle of radius r and angle θ is given by:
L = rθ
The angle must be expressed in radians.
The total perimeter of the circular sector, including the two radii, is:
P = rθ + 2r
The pizza slice has a radius of r=7 cm and a central angle of θ=50°
Converting to radians:
[tex]\theta=50*\frac{\pi}{180}=\frac{5\pi}{18}[/tex]
The perimeter is:
[tex]P = 7*\frac{5\pi}{18} + 2*7[/tex]
Calculating:
P = 20.1 cm
The perimeter of the pizza slice is 20.1 cm
what is the sum of the fractions below 2/7+1/5
A.1/4
B.11/35
C.17/35
D.1/6
Answer: The answer is C
Step-by-step explanation: Just did it in a quiz
Answer:
[tex]\frac{17}{35}[/tex]
correct
What is pickle+pizza
Step-by-step explanation:
a great time lol....
an enjoying time with pizza...yummm...lol
There are two outcomes...
Either Piczle (sounds like pixel)
or
Pizcle
Expression 10 months of service
I don't understand anything about angles may u help me please
Answer:
125 degrees
Step-by-step explanation:
Just add the two angles given