Answer:
Tarea:
Ana compró una cartera cuyo precio es x dólares con el 10% de descuento y un perfume con precio original en dólares con un descuento del 15%. ¿Cuánto gastó Ana en total?
- Solución:
El precio estará en lenguaje algebraico, ya que no nos dan el dato de cuánto costó cada artículo.
• Hallamos el precio de la cartera con el descuento:
El precio original es x, entonces:
Regla de tres:
100 % --------> x
10 % -----------> ?
10 . x : 100 = ?
10x/100 = ?
El 10% del precio de la cartera es 10x/100.
Entonces el precio de la cartera es (x-10x/100).
• Hallamos el precio del perfume con el descuento:
El precio original es y, entonces:
Regla de tres:
100% -------> y
15 % --------> ?
15.y/100
El 15% del perfume es 15y/100.
Entonces el precio del perfume con el descuento es (y-15y/100).
Entonces lo que gastó en total es:
(x - 10x/100) + (y - 15y/100)
Step-by-step explanation:
pls give me brainless
A spinner has 10 equal sized sections. Two of the sections are green.
A. What is the probability that the spinner will land on green?
B. Use words to describe the probability.
Answer:
Hello love the answer would be 2/10 or reduced 1/5
Answer:
A. 1/5
B. There is a 1/5 probability the spinner will land on green
Step-by-step explanation:
A. 2/10 simplified
B. I just put it into words
Am I correct on these two
Answer:
9. Correct 12. Incorrect, it's D
Step-by-step explanation:
9. There is a 1:2 ratio of blue to red paint to create the shade of purple, so 6:12 would follow the 1:2 ratio so it's correct.
12. 6:14 can be simplified to 3:7 ratio. 8:16 doesn't follow 3:7 (it follows 1:2) so it can't be the right answer. 12:28 follows the ratio so it's right.
Que volumen ocupan 0.8kg de alcohol?¿cual es el peso de este volumen? la densidad del alcohol es 790 kg/m3
Respuesta:
Volumen = 0.0010126 m³
Ancho = 7,84 N
Explicación paso a paso:
Dado que:
Masa, m de alcohol = 0,8 kg
Densidad del alcohol, d = 790 kg / m³
Recordar :
Densidad, d = masa, m / volumen, v
Volumen = masa / densidad
Volumen = 0,8 kg / 790 kg / m³
Volumen = 0.0010126 m³
Peso, W = densidad * aceleración debido a la gravedad * volumen
Ancho = 790 * 9,8 * 0,0010126
W = 7.8395
Ancho = 7,84 N
HELP giving brainlest
Answer:
It should be "there ARE 254 counties in texas..."
Step-by-step explanation:
is the wrong one it should be are
Step-by-step explanation:
pls help me plss im so STUCK AHhH
PLEASE HELP!!!!
The surface area of a regulation spherical soccer ball is about 484π
square centimeters. If the diameter of the regulation ball is reduced by 50%
to produce a new ball, what is the diameter of the new ball, to the nearest tenth of a centimeter?
A. 5.5 cm
B.7.8 cm
C. 11.0 cm
D.15.6 cm
The diameter of the new ball, to the nearest tenth of a centimeter, is 11.0cm
We have given that,
The surface area of a regulation spherical soccer ball is about 484π
square centimeters. If the diameter of the regulation ball is reduced by 50% to produce a new ball.
We have to determine,
The diameter of the new ball, to the nearest tenth of a centimeter.
What is the surface area of a spherical soccer ball?
The volume of a sphere = 4/3 × πr^3.
Therefore we get,
[tex]\frac{484}{50}= 11.0[/tex]
Therefore we get the diameter of the new ball, to the nearest tenth of a centimeter is 11.0cm.
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G. 9−7+{−2+3−[4−2+(3+2)−7]+8} h. – {- [ (14 - 7) - (32 - 41)]} i. – [(-8 + 3) + (- 21 – 12)] j. 500 – {( 6 – 18 + 4 + 3 + 16 - 10 – 2) – 5 } k. (9 + 7 – 2 + 4) – ( 9 -12 )
Answer:
g. 9−7+{−2+3−[4−2+(3+2)−7]+8} = 11
h. – {- [ (14 - 7) - (32 - 41)]} = + 16
i. – [(-8 + 3) + (- 21 – 12)] = + 38
j. 500 – {( 6 – 18 + 4 + 3 + 16 - 10 – 2) – 5 } = 506
k. (9 + 7 – 2 + 4) – ( 9 -12 ) =21
Step-by-step explanation:
These questions are solved by solving the small brackets, then square brackets and then the curly brackets.
g. 9−7+{−2+3−[4−2+(3+2)−7]+8}
= 9−7+{−2+3−[4−2+(5)−7]+8} Solving inner small brackets
= 9−7+{−2+3−[9−2−7]+8} Solving outer square brackets
= 9−7+{−2+3−0 +8} Solving curly brackets
=9−7+{9} Adding like terms ( adding positive terms)
= 18-7
= 11
h. – {- [ (14 - 7) - (32 - 41)]}
= – {- [ (14 - 7) - (-9)]} Solving inner small brackets
= – {- [ (7) +9]} Solving inner small brackets
= – {- [ 16 ]} Solving outer square brackets
= – {- 16 } Solving curly brackets
= + 16 (-*-= +)
i. – [(-8 + 3) + (- 21 – 12)]
= – [(-8 + 3) + (- 33)] Solving inner small brackets
= – [(-5 - 33)] Solving inner small brackets
=– [( - 38 )] Solving outer square brackets
= + 38 (-*-= +)
j. 500 – {( 6 – 18 + 4 + 3 + 16 - 10 – 2) – 5 }
= 500 – {( 6 + 4 + 3 + 16 – 18 -10 – 2) – 5 } Solving inner small brackets
= 500 – {( 29 – 30) – 5 } Solving inner small brackets
= 500 – {( – 1) – 5 } Solving inner small brackets
= 500 – { – 6} Solving curly brackets
= 500 + 6 (-*-= +)
= 506
k. (9 + 7 – 2 + 4) – ( 9 -12 )
= (9 + 7 + 4– 2 ) – ( -3 ) Solving inner small brackets
= (20 – 2 ) – ( -3 ) Solving inner small brackets
= (18 ) – ( -3 ) (-*-= +)
= 18 +3
=21
What is the factored form of y2 - 5y + 4
pls help asap !!!!!!!!!!!!!!!!!!!!!
Answer:
For the 1st one: 63
For the second one: 99
Step-by-step explanation:
This is because to find the perimeter, you have to do length+length+width+width=area
So you do 77+77+x+x=280, this should get you x=63
For the second one, to find area you do length×width=area
So you do 59×x=5841 and should get 99.
ILL MARK BRAINLIEST
What is the distance between the points (-9,4) and (3, -12)?
Answer:
-9 and 3 are x
4 and -12 are y
x are 12 points away
y is 16 points away
Is this helpful?
Answer:20
Step-by-step explanation:
Which linear equation represents the table shown below?
~ y=6x+2
~ y=x+4
~ y=4x+2
~y=4x-2
help me on these please asap
Answer:
1.x=45,2.x=16
Step-by-step explanation:
1.
x+90+45=180(Angles in an adjacent angle)
x=180-135
x=45
2.
7x=112(vertically opposite angle)
x=112/7
x=16
First question refers to the supplementary angle theorem.
To find x, we need to refer to the other angles around it and use it to subtract it from 180°.
90 + 45 + x = 180
135 + x = 180
x = 180 - 135
x = 45°
Second question refers to the vertical angles theorem, where it states that the angles that face in opposite directions are the same.
7x = 112
x = 112 ÷ 7
x = 16°
The radius is 6 and the height is 15 what is the volume in terms of pi
Answer:
Step-by-step explanation:
what is the shape ?
what isssssssssssssssssssssssssssssssssssss
10-11x=164
what is the missing angle in a triangle with angle measures of 15 degrees and 70 degrees
Answer:
95
Step-by-step explanation:
A triangle must always equal 180, so if you take the values of 15 and 70, you get 85.
Then, you take 180 and subtract 85.
This leaves you with 95
Hope this helps
Eva received a 20% discount when she bought a sweater. The original price of the sweater before the discount was $80. Which was the discount on Eva's sweater?
Answer:
8
Step-by-step explanation:
Yes
Claire bought 6 packs of baseball cards. Each pack had the same number of cards. If Claire bought 48 baseball cards in all, how many cards were in each pack.
Answer:
8 baseball cards were in each pack
Step-by-step explanation:
Since she has a total of 48 cards and each of the 6 packs had the same amount you would just do 48 divided by 6 which is 8. So there were 8 baseball cards in each pack
1.2 mi =
ft someone pls tell me I have a test tomorrow!!
Answer: 6336 ft.
Step-by-step explanation:
If you were asking what 1.2 miles equals in feet, your answer would be 6336 feet. Good luck on your test tomorrow!
Answer:
6336 feet
Step-by-step explanation:
each mile has 5280 feet. Simply multiply 1.2 by 5280 to get your answer
Yellow line leaves station every 6 min and red line leaves every 8 min and they both leave at 4:15, when will they both leave at the same time next 3 times?
Answer: [tex]4:39, 5:03[/tex]
Step-by-step explanation:
Given
The yellow line leaves the station every 6 min
The red line leaves the station every 8 min
They both leave at [tex]4:15[/tex]
Both trains meet again after, LCM(6,8)=24 min
i.e. at
[tex]4:15+24=4:39\\4:39+24=5:03[/tex]
A Scale model of a building is 12 inches tall. The actual building is 160 feet tall. What is the scale factor of the model write your answer as a fraction and simplest form
Answer:
133/10
Step-by-step explanation:
divide 160 and 12 then simplify your answer
The scale factor of the model is 0.075.
What is the scale factor?The ratio between comparable measurements of an item and a representation of that thing is known as a scale factor in arithmetic.
We are given that Scale model of a building is 12 inches tall. The actual building is 160 feet tall.
First, we need to multiply 160 by 12 so that we have inches and inches
160 inches
Then divide 160 by 12 and that will give, 12 which is the scale factor
The scale factor is:
12/160=3/40
=0.075
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Write an equation equivalent to 0.127
Answer:
127x10^-3
Step-by-step explanation:
0.127=
[tex]127 \times {10}^{ - 3} [/tex]
Michael has 27 keys, which is 3 times as many as Rachel. Rachel has 8 more keys than Ann. How many keys does Ann
have?
Answer:89
Step-by-step explanation:
Multiply 27 by 3, then add 8 to your answer and you get 89
A.Adjacent
B.Vertical
C.None
D.Complementary
Question 10:
Find the cosine of angle J.
28
J
N
Answer:
1/14
Step-by-step explanation:
According to SOH CAH TOA;
Cos theta = adjacent/hypotenuse
Since theta = <J
Adjacent = 2
Hypotenuse = 28
Cos <J = adj/hyp
Cos<J = 2/28
Cos<J = 1/14
Hence the value of cosine J is 1/14
What is 1/3 of 8 1/4
Answer:
2.75
Step-by-step explanation:
use a calculator
Hope this helps! :)
Identify which graph can be used to solve each equation. Enter the letter of the correct graph next to the
equation
Answer:
I think the answer is graph B
1. C = x^4 + 3 = 0
2. A = (x − 3)^4 = 0
3. B = (x^2 − 3)^2 = 0
What is the length of BC in the right triangle below?
Answer:
Option A
Step-by-step explanation:
Use the Pythagoras Theorem
Hypotaneous² = base² + height²
BC² = AB² + AC²
BC = √ (AB² + AC²)
BC = √ (12² + 16²)
BC = 20
Answer:
20
Step-by-step explanation:
Here's your solution
=> in a right angle traingle
BC^2 = AB^2 + AC^2
=> BC^2 = 16^2 + 12^2
=> BC ^2 = 256 + 144
=> BC^2 = 400
=> BC = √400
=> BC = 20
hope it helps
Zoe supplies costumes to a number of theater companies. She
recently provided 20 different hats, including 4 fedoras.
Considering this data, how many of the next 30 hats requested
from Zoe's inventory should you expect to be fedoras?
Answer:3
Step-by-step explanation:
The 6 fedoras expect if next 30 hats requested from Zoe's inventory, and She recently provided 20 different hats, including 4 fedoras.
What is the ratio?It is described as the comparison of two quantities to determine how many times one obtains the other. The proportion can be expressed as a fraction or as a sign: between two integers.
The ratio of hats to fedoras = 20:4
Let's suppose Zoe's inventory, should expect to x fedoras
20/4 = 30/x
x = 30/5
x = 6
Thus, the 6 fedoras expect if next 30 hats requested from Zoe's inventory, and She recently provided 20 different hats, including 4 fedoras.
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EXPLAIN HOW TO FIND THE AREA OF THE
SHADED Region.
Answer:
Find the area of the circle then divide by two
Step-by-step explanation:
What is the area of this figure???
Answer:
24 mm squared
Step-by-step explanation:
3 x 4 x 1/2 = area of the triangle
4 x 3 = area of the rectangular top left
1 x 6 = area of the bottom rectangle
3 x 4 = 12 x 1/2 = 6
4 x 3 = 12
6 x 1 = 6
6 + 12 + 6 =24