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bearhunter [10]
3 years ago
7

(7 4/9 −8)∙3.6–1.6∙( 1/8 − 3/4 )+1 2/5 ÷(−0.35)

Mathematics
2 answers:
katrin2010 [14]3 years ago
5 0

Answer:

-4.10

Step-by-step explanation:

We have so solve (7\tfrac{4}{9}-8)(3.6)-(1.6)(\frac{1}{8}-\frac{3}{4})+1\tfrac{2}{5}\div (-0.35)

To solve this expression we will use BODMAS.

B ⇒ Bracket

O ⇒ open

D ⇒ Divide

M ⇒ Multiplication

A ⇒ Addition

S ⇒ Subtraction

First we will solve inside the brackets.

(1) (7\tfrac{4}{9}-8)=\frac{69}{9}-8=(\frac{67-72}{9})=(\frac{-5}{9})

(2) (\frac{1}{8}-\frac{3}{4})=\frac{1-6}{8}=(\frac{-5}{8})

Now expression becomes

(\frac{-5}{9})(3.6)-(1.6)(\frac{-5}{8})+\frac{7}{5}\div (-0.35)

= (-5)(0.04)-(0.02)(-5)+\frac{7}{5}\times \frac{1}{(-0.35)}

= (-0.20)-(-0.10)+\frac{1}{5(-0.05)}

= -.20+.10-\frac{1}{.25}=-.20+.10-4

= -4.20 + 0.10 = -4.10

salantis [7]3 years ago
3 0

Answer:

The answer is 2/5. ☺ Hope this helps

Step-by-step explanation:

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The area of a square is 72.25 inches squared. Find the length of the side and the perimeter.
Nadya [2.5K]

Answer:

8.5 inches and 34 inches

Step-by-step explanation:

Area of the square = 72.25

side² = 72.25

side = \sqrt{72.25}

Side = 8.5 in

Perimeter = 4 × side

Perimeter = 4 × 8.5 in

Perimeter = 34 in

6 0
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Susie is having a party with 15 guests. she wants to feed everyong sandwhiches.if susie buys 7 1/2 pounds of meat, how much meat
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Find the LCM of 5 and 12
ValentinkaMS [17]

Answer:

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7 0
2 years ago
Observa los puntajes de las respuestas de una evaluación que tuvo de 100 preguntas. Si Alfredo contestó correctamente 57 pregunt
n200080 [17]

La pregunta está incompleta:

Observa los puntajes de las respuestas de una evaluación que tuvo de 100 preguntas. Si Alfredo contestó correctamente 57 preguntas, 16 incorrectas y el resto las dejó en blanco, ¿qué puntuación obtuvo en la evaluación?

Puntos por respuesta:

Correctas: 4

En blanco: -1

Incorrectas: -3

Answer:

Alfredo obtuvo una puntuación de 153.

Step-by-step explanation:

De acuerdo a la información proporcionada, conoces el número de preguntas en la evaluación y el número de preguntas que Alfredo contestó de forma correcta e incorrecta y tienes que restar estas del total de preguntas para encontrar el número de preguntas que dejó en blanco:

100-57-16=27

Ahora, debes multiplicar el número de respuestas correctas, incorrectas y en blanco por su respectivo puntaje:

Correctas: 57*4=228

En blanco: 27*(-1)=-27

Incorrectas: 16*(-3)=-48

Finalmente, debes sumar los resultados obtenidos por cada tipo de respuesta:

228+(-27)+(-48)= 228-27-48=153

De acuerdo a esto, la respuesta es que Alfredo obtuvo una puntuación de 153.

4 0
2 years ago
964,103 rounded to the nearest ten thousand
Mariana [72]
960,000! Hope this helped! :D
8 0
3 years ago
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