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Lelechka [254]
3 years ago
9

Justin walked his dog 5 miles in

Mathematics
1 answer:
Ad libitum [116K]3 years ago
3 0

Answer:

Is the 5 separate or to gather like 45

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I NEED HELP ON THIS ONE TO
lora16 [44]

Answer:

Its 9

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
If the radius of a circle is doubled, how does the area of the circle change?
makkiz [27]

Answer:

Quadruple the size

Step-by-step explanation:

Explanation:

When you enlarge a linear measurement by a scale factor a the area changes by a scale factor a2

So when you double the radius. scale factor 2, the area is increased by a scale factor:

22=4

So the area is quadrupled in this case.

5 0
2 years ago
Un padre para estimular a su hijo para estudiar matemáticas le dice: por cada ejercicio que resuelvas bien te daré 7 € y por cad
Naya [18.7K]

Answer:

8 ejercicios

Step-by-step explanation:

De acuerdo a la información dada, puedes plantear las siguientes ecuaciones:

x+y= 45 (1)

7x-1y= 19 (2)

x= ejercicios que resolvió bien

y= ejercicios que resolvió mal

Primero, puedes despejar x en (1):

x= 45-y (3)

Segundo, debes reemplazar (3) en (2):

7(45-y)-1y=19

315-7y-1y= 19

315-8y= 19

315-19= 8y

296= 8y

y= 296/8

y= 37

Tercero, debes reemplazar el valor de y en (3) para encontrar x:

x= 45-37

x= 8

De acuerdo a esto, la respuesta es que el hijo ha resuelto bien 8 ejercicios.

8 0
3 years ago
Is -7 the solution to the equation w/7 +2=-1 explain how you know
erma4kov [3.2K]

w/7 + 2 = 1

<em><u>Subtract 2 from both sides.</u></em>

w/7 = -1

<em><u>Multiply both sides by 7.</u></em>

w = -7

The value of w is equal to -7

3 0
3 years ago
How many radians is 330° in a fraction?
liubo4ka [24]

Answer:

5.76 Radians

Step-by-step explanation:

6 0
3 years ago
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