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Reika [66]
3 years ago
8

The quetion is 8-(-4)is the same value as (-4)(-3)?

Mathematics
2 answers:
ella [17]3 years ago
8 0
8-(-4)=8+4=12
(-4)(-3)=12
true
Novosadov [1.4K]3 years ago
4 0
Yes, they are both 12.
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The grocery store charges $6.85 for 5 bags of potatoes.if someone bought 7 bags of potatoes, how much would it cost them
Hoochie [10]

Answer:

$9.59 for 7 bags of potatoes

Step-by-step explanation:

First you find the unit rate by dividing 6.85 by 5.

The unit rate should equal $1.37.

Then you multiply that and 7 which equals $9.59

4 0
3 years ago
En una fiesta hay 40 asistentes de los cuales el número de varones que no bailan es el doble que el número de las mujeres que no
Arte-miy333 [17]

Answer:

50%

Step-by-step explanation:

Para resolver este problema vamos a definir 4 variables:

V= número de varones bailando.

M= número de mujeres bailando.

V' = número de varones que no están bailando.

M' = número de mujeres que no están bailando.

Sabemos que hay 40 personas en la fiesta, por lo que podemos construir la siguiente ecuación:

V+M+V'+M'=40

Vamos a suponer que cada mujer que está bailando, está bailando varón respectivamente. (El problema no da más información, entonces podemos suponer esto.)

Entonces si hay 5 mujeres bailando, entonces también hay 5 hombres bailando, por lo que nuestra ecuación se reescribe de la siguiente manera:

5+5+V'+M'=40

y simplificamos:

10+V'+M'=40

V'+M'=40-10

V'+M'=30

Ahora bien, el problem nos dice que el número de varones que no bailan es el doble del número de mujeres que no bailan en un determinado momento. Entonces con esta información podemos construir la siguiente ecuación:

V'=2M'

Y podemos despejar el número de mujeres que no bailan, lo que nos da:

M'=\frac{V'}{2}

Entonces podemos sustituir esto dentro de nuestra ecuación para obtener:

\frac{V'}{2}+V'=30

y podemos entonces despejar V'

\frac{3V'}{2}=30

V'=\frac{2(30)}{3}

V'=20

Entonces hay 20 varones que no están bailando, por lo que la probabilidad de que el varón que se escoge al azar no esté bailando está dada por la siguiente fórmula:

P=\frac{V'}{total}

P=\frac{20}{40}=\frac{1}{2}

P=50%

6 0
3 years ago
Use the explicit formula an = a1 + (n – 1) • d to find the 250th term of the sequence below.
solmaris [256]
For this case we have the following equation:
 an = a1 + (n - 1) • d
 Where,
 a1 = 57
 d = 66-57 = 9
 For the term number 250 we have:
 n = 250
 Substituting the values:
 a250 = 57 + (250 - 1) * 9
 a250 = 2298
 Answer:
 
D.2298
8 0
4 years ago
A stick 1 meter long casts a shadow 0.6 meters long. A building casts a shadow 17 long. How tall is the building (to 2 decimal p
Masteriza [31]
28.333333333. If you do a proportion and place it 1/(?) times .6/(17) you should multiply 17 by 1 (17*1) which should equal 17. You now have to divide it so 17 divided by .6 (17/6) which equals to 28.333333.

4 0
3 years ago
Read 2 more answers
Solve:<br>6y+2y=16<br><br>For 5 pionts
romanna [79]

Combine like terms : 8y = 16

Divide by 8 on both sides : y = 2

5 0
4 years ago
Read 2 more answers
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