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My name is Ann [436]
3 years ago
15

Life gym charges a one-time fee to join of $40 and $20 each month. Write an equation that models the total cost, y, for x months

of being a member at this gym.
Mathematics
1 answer:
brilliants [131]3 years ago
8 0

Answer:

40+20x=y

Step-by-step explanation:

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Which of the following is the surface area of the right cylinder below?
NARA [144]

Answer:

D

Step-by-step explanation:

176 pi units squared

5 0
3 years ago
Are the following numbers rational or irrational? 6. a) 14/20 b) 5.243 c) 0.25255255525555255555 ...
kozerog [31]

Answer:

Step-by-step explanation:

A) rational because it’s a fraction

B) rational because it’s a fraction

C) irrational because it’s never ending

4 0
3 years ago
Algebra 2 (picture shown)
TEA [102]

Answer:

<em>M(13)=14.3 gram</em>

Step-by-step explanation:

<u>Exponential Decay Function</u>

The exponential function is used to model natural decaying processes, where the change is proportional to the actual quantity.

An exponential decaying function is expressed as:

C(t)=C_o\cdot(1-r)^t

Where:

C(t) is the actual value of the function at time t

Co is the initial value of C at t=0

r is the decaying rate, expressed in decimal

The element has an initial mass of Mo=970 grams, the decaying rate is r=27.7% = 0.277 per minute.

The equation of the model is:

M(t)=M_o\cdot(1-r)^t

M(t)=970\cdot(1-0.277)^t

Operating:

M(t)=970\cdot 0.723^t

After t=13 minutes the remaining mass is:

M(13)=970\cdot 0.723^{13}

Calculating:

M(13)=14.3 gram

4 0
3 years ago
What’s the answer to X/2+21=36
marshall27 [118]

Answer:

x/2 + 21 = 36

First we get rid of constants to isolate the variable.

In order to do that we must do the inverse operation.

Inverse operation of addition is subtraction.

-21           -21(subtracting 21 from both sides, whatever we do to the left side we do it to the right side too)

x/2 = 15

inverse property of division is multiplication

x2    x2

X = 30

6 0
3 years ago
Read 2 more answers
Christian randomly selects students from his grade to rate a math test as easy, moderate, or difficult. Of the students he surve
Paraphin [41]

Answer:

C.

84

Step-by-step explanation:

This question is solved using proportions.

From the sample:

11 + 3 = 14 out of 13 + 11 + 3 = 27 would rate the test something other than easy.

Out of 162:

Applying the rule of three:

14 - 27

x - 162

Applying cross multiplication:

27x = 14*162

x = \frac{14*162}{27}

x = 84

Thus the correct answer is given by option C.

8 0
3 years ago
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