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QveST [7]
3 years ago
11

Me ayudan hacer este ejercicio con los pasos

Mathematics
2 answers:
QveST [7]3 years ago
6 0

Answer:

A) 21/7, or 3

B) 36/5, or 7 1/5

C) 35/25, or 1 15/25, or 1 3/5

D) 54/12, or 4 6/12, or 4 1/2

Step-by-step explanation:

8/7 plus 13/7. You add the numerators (the numbers on top) together. That makes 21. The denominator (the numbers on bottom) stays the same. So it would be 21/7. 7 fits into 21, 3 times.

8/7 más 13/7. Agrega los numeradores (los números en la parte superior) juntos. Eso hace 21. El denominador (los números en la parte inferior) permanece igual. Entonces sería 21/7. 7 encaja en 21, 3 veces.

8/7 plus 13/7. Vous ajoutez les numérateurs (les chiffres du haut) ensemble. Cela fait 21. Le dénominateur (les chiffres du bas) reste le même. Donc, ce serait 21/7. 7 correspond à 21, 3 fois.

8/7 plus 13/7. Quarum numeratores addere (supra de numero) una. 21. Quod facit denominator est (per numeros in fundo) manebit. Ita esset 21/7. Vicium, in VII XXI, III tempora.

GREYUIT [131]3 years ago
3 0

a) 8/7 +13/7: denominador es el mismo asi que nada mas sumas los numeradores. Respuesta 21/7 o 3

b) 18/25 + 17/25: lo mismo denominador es el mismo asi que nada mas sumas los numeradores. Respuesta 35/25 o 1 10/25

c) 9/3 + 21/5: factor en comun de los denominadores 15. 9*3=21  y 21*3=62 asi que 21/15 + 62/15 . Respuesta 83/15 o 5 8/15

d) 7/12 + 14/4: factor en comun de los denominadores 12. 14*3=42 asi que 7/12 + 42/12. Respuesta 49/12 o 4 1/12

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Answer:

15

Step-by-step explanation:

90 ÷ 6 = 15

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6 0
2 years ago
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Simplify the expression (t^-2)^6
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Answer:

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Step-by-step explanation:

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5 0
3 years ago
-13=r/9+8<br> what is r equal to?
AURORKA [14]
Answer: r=(-189)

first you subtract both sides by 8 and get -21=r/9

then you multiply 9 with each side and get -189 = r

you can check by rewriting the problem with -189 as r and solving the equation

7 0
2 years ago
A marketing firm would like to test-market the name of a new energy drink targeted at 18- to 29-year-olds via social media. A st
Anon25 [30]

Answer:

(a) The probability that a randomly selected U.S. adult uses social media is 0.35.

(b) The probability that a randomly selected U.S. adult is aged 18–29 is 0.22.

(c) The probability that a randomly selected U.S. adult is 18–29 and a user of social media is 0.198.

Step-by-step explanation:

Denote the events as follows:

<em>X</em> = an US adult who does not uses social media.

<em>Y</em> = an US adult between the ages 18 and 29.

<em>Z</em> = an US adult between the ages 30 and above.

The information provided is:

P (X) = 0.35

P (Z) = 0.78

P (Y ∪ X') = 0.672

(a)

Compute the probability that a randomly selected U.S. adult uses social media as follows:

P (US adult uses social media (<em>X'</em><em>)</em>) = 1 - P (US adult so not use social media)

                                                   =1-P(X)\\=1-0.35\\=0.65

Thus, the probability that a randomly selected U.S. adult uses social media is 0.35.

(b)

Compute the probability that a randomly selected U.S. adult is aged 18–29 as follows:

P (Adults between 18 - 29 (<em>Y</em>)) = 1 - P (Adults 30 or above)

                                            =1-P(Z)\\=1-0.78\\=0.22

Thus, the probability that a randomly selected U.S. adult is aged 18–29 is 0.22.

(c)

Compute the probability that a randomly selected U.S. adult is 18–29 and a user of social media as follows:

P (Y ∩ X') = P (Y) + P (X') - P (Y ∪ X')

                =0.22+0.65-0.672\\=0.198

Thus, the probability that a randomly selected U.S. adult is 18–29 and a user of social media is 0.198.

6 0
3 years ago
3x∧2±6x±x±20 sole by factorization
Trava [24]

Answer:

just look at the algebra formula and simplify to get your answer. Remember to use your powers well

8 0
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