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jolli1 [7]
3 years ago
12

Karen jumped rope for 20 minutes she stopped at 8:05 when does she start jumping

Mathematics
1 answer:
Anna [14]3 years ago
4 0

she started jumping rope at 7:45

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The line is going downwards
Solution: negative slope
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3 years ago
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The numerator and the denominator of a fraction are thirteen and fifty, respectively. When a certain number is added to this num
Talja [164]
(13 + x)/(50 - x ) = (2/1)
Cross Multiply
2(50-x) = 1(13 + x)
100 - 2x = 13 + x
add 2x to both sides
100 -2x + 2x = 13 + x + 2x
100 = 13 + 3x
Subtract 13 from both sides
100 - 13 = 13 - 13 + 3x
87 = 3x
divide both sides by 3
29 = x

(13 + 29)/(50-29) = 42/21 = 2 to 1 ratio
7 0
3 years ago
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A rectangular table top measures 7/9 of a meter long by 5/4 of a meter wide.<br> What is its area?
Rzqust [24]

Answer:

35/36 sq meters

Step-by-step explanation:

7/9 x 5/4 = 35/36 sq meters

8 0
3 years ago
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1. Una escalera de 4 m de longitud se apoya sobre una pared vertical. Si la distancia entre la base de la escalera a la pared es
enot [183]

Answer:

puedes resolver de dos maneras si diste teorema de Pitágoras lo aplicas

hipotenusa al cuadrado = cateto 2 +cateto 2 ( el 2 significa al cuadrado)

sustituyes

hipotenusa= 4m

cateto= 2,5

hay que hallar el otro cateto que nos daría la altura a la que está la escalera

despejamos y tenemos

cateto 2= hip2 -cat2

cat2=(4)2-(2,5)2=

       =   16-6,25=9,75

luego hallamos la raíz cuadrada de 9,75= 3,12

     

la altura a la que se encuentra es 3,12m

-si aun no diste Pitágoras podes representarlo en una hoja utilizando cm en lugar de metros( a escala). trazas el triángulo rectángulo la base te la da la distancia a la cual se encuentra la escalera de la pared es decir 2,5cm trazas la hipotenusa de 4cm de manera que coincida con el cateto opuesto , y mides el valor de este ,será de 3,12cm no olvides que la respuesta la debes dar en metros ya que es la unidad de medida que te da.

4 0
3 years ago
The quotient of 35 and the quantity of x minus 7
Fantom [35]
The quotient (÷) of 35 and the quantity of x minus 7 (x - 7).

\frac{35}{x - 7}   


3 0
4 years ago
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