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morpeh [17]
3 years ago
8

7

Mathematics
1 answer:
nekit [7.7K]3 years ago
6 0

Answer:

\sqrt{49 + 121}  =  \sqrt{170}

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4. El costo de impresión de cada página en una biblioteca es de 5 centavos si es en blanco y negro o
ira [324]

Answer:

Juan imprimió 7 páginas a color.

Step-by-step explanation:

Llamemos "b" a las copias en blanco y negro y "c" a las copias en color.

Juan imprimió 75 páginas. En forma simbólica es:

b + c = 75  

b = 75 - c   [1]

El costo de impresión de cada página en una biblioteca es de 5 centavos si es en blanco y negro o  50 centavos si es a color. En total pago $6.90. En forma simbólica es:

0.05b + 0.5c = 6.90   [2]

Si reemplazamos [1] en [2],

0.05(75-c) + 0.5c = 6.90

3.75 - 0.05c + 0.5c = 6.90

0.45c = 3.15

c = 7

Juan imprimió 7 páginas a color.

4 0
3 years ago
Division of fraction 3/5 divided by 10/11
Tema [17]
3/5 ÷ 10/11
multiply by the inverse

3/5 x 11/10 = 33/50
3 0
3 years ago
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The question is shown in the picture !
zloy xaker [14]
I want to say the answer is a or b mostly a though
8 0
3 years ago
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Under his cell phone plan, Samuel pays a flat cost of $41.50 per month and $5 per gigabyte. He wants to keep his bill at $52.50
MakcuM [25]

Answer:

512

Step-by-step explanation:

7 0
3 years ago
x,y, and z to the nearest tenth .(hint: use altitude and leg rules) PLEASE HELP FAST !!! please solve and show steps
madreJ [45]

Use the Pythagorean theorem to find z:

z = √(6^2 + 9^2)

z= √(36 + 81)

z = √117

z = 3√13 = 10.8

Use leg rule to find x:

x/6 = 6/9

Cross multiply:

9x = 36

Divide both sides by 9:

x = 36/9

x = 4

Use Pythagorean theorem to find y:

y = √(6^2 + 4^2)

y= √(36 + 16)

y = √52

y = 2√13 = 7.2

7 0
3 years ago
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