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iragen [17]
3 years ago
13

Can someone help me ​

Mathematics
2 answers:
just olya [345]3 years ago
8 0

Answer

3: x=4     4: 58    5: 67    6: x=7   7: x= 14  bc= 27  cd=61   bd= 88

Step-by-step explanation:

 

Jobisdone [24]3 years ago
3 0

Answer:

the answer is 9889977.998

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The answer is 0.7 Have a nice day   
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3 years ago
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El Sr negron tiene que redactar una serie de cartas en su oficina. A Lourdes le toma 6 horas pasar todas las cartas. A su compañ
vodka [1.7K]

El Sr negron tiene que redactar una serie de cartas en su oficina. A Lourdes le toma 6 horas pasar todas las cartas. A su compañera rosabel, le toma 9 horas en realizar la misma tarea. Si ambas trabajan juntas para hacer todo el trabajo d ela oficina,

a. Cuánto tiempo le tomará a ambas realizar el trabajo?

Answer:

3.6 horas

Step-by-step explanation:

Sea el número total de horas que ambos trabajaron = T

Deje que la cantidad total de letras por las que pasaron = 1

De la pregunta, se nos dice:

Lourdes necesitó 6 horas para revisar las cartas.

Esto significa que, cada 1 hora, Lourdes revisaba 1/6 de las letras

Rosabel tardó 9 horas en leer las letras.

Esto significa que, cada 1 hora, Rosabel revisó 1/9 de las letras

Por lo tanto,

(1/6 × 1) T + (1/9 × 1) T = 1

(1/6 + 1/9) T = 1

(3 + 2/18) T = 1

(18/5) T = 1

5T / 18 = 1

Cruz multiplicar

5T = 18

T = 18/5

T = 3.6 horas

Por lo tanto, les tomó a ambas 3.6 horas hacer el trabajo.

7 0
3 years ago
What is the inverse of f(x) = -5x - 8?​
grin007 [14]

Answer:

y=-1/5x-9/5

Step-by-step explanation:

y=-5x-9

x=-5y-9

-5y=x+9

y=-1/5x+9/-5

y=-1/5x-9/5

8 0
3 years ago
Mr. Robinson took a nap 12 out of the 15 days of his vacation what what percent of Mr. Robinsons vacation did he nap
jonny [76]

Answer:

80%

Step-by-step explanation:

convert to percent:

\frac{12}{15}*100 = 80 percent

8 0
2 years ago
How do you provide the value of k that makes each equation true?
Verdich [7]

Answer:

sorry dont know

Step-by-step explanation:

6 0
3 years ago
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