3 years ago

The original cost of a cell phone is x dollars. The phone is

Mathematics

1 answer:

uranmaximum [27]3 years ago

7 0

Answer:

Step-by-step explanation:

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80% of C is 20. What is c?

Aleks [24]

Answer:

c is

Step-by-step explanation:

If 80% of C is 20, 40% of C is 10, 20% is half of that, so 5

20% x 5 = 100%

5 x 5 = 25

C = 25

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3 years ago

Rate of Change between August and October

nikdorinn [45]

Answer:

15 students per month

Step-by-step explanation:

The rate of change is calculated as

$\frac{f(b)-f(a)}{b-a}$

f(b) = 95 ← number of students in October

f(a) = 65 ← number of students in August

b - a = 2 ← difference in months

Thus

rate of change = $\frac{95-65}{2}$ = $\frac{30}{2}$ = 15

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3 years ago

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kotykmax [81]

Answer:

Second option is the right choice.

Step-by-step explanation:

$Volume=2\pi rh+2\pi r^2\\\\V=2\left(3.14\right)\left(13\right)\left(14\right)+2\left(3.14\right)\left(13\right)^2\\\\\approx2205\:in^2$

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3 years ago

Simplify x + 4 + 3x

Ostrovityanka [42]

X+4+3x =
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3 years ago

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olga2289 [7]

Answer:

p=75(alternative) , t=105(sum of all sides) ,

q=105(sum of all sides) , s=105(straight angle)

r=75(sum of all sides)

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2 years ago