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Alex73 [517]
3 years ago
15

Jim adds 20 to it, then doubles it and gets an answer of 99.2. What was the original number?

Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
7 0

(n+20)*2 = 99.2

distribute

2n + 40 = 99.2

subtract 40 from each side

2n = 59.2

divide each side by 2

n = 29.6

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A one-year membership to Metro Gym costs $460 including is a fee of $100. How much will a customer pay monthly
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3 years ago
The equation of a circle is given below. Identify the radius and center. Then graph the circle.
pav-90 [236]

The center of the circle is (0,2) and the radius is 5 units

<h3>How to determine the radius and the center?</h3>

The equation is given as:

x² + (y-2)² =25

The equation of a circle is given as:

(x - a)² + (y - b)² = r²

Where:

Center = (a,b)

Radius =  r

By comparison, we have:

(a,b) = (0,2)

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Evaluate

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Hence, the center of the circle is (0,2) and the radius is 5 units

Read more about circle equation at:

brainly.com/question/1559324

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3 0
2 years ago
How to solve (x-10)(x + 10)
tensa zangetsu [6.8K]

Answer:

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Step-by-step explanation:

multiply the commons factors x times x is x squared

-10 times 10 is -100. Negative times positive is negative.

6 0
3 years ago
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NNADVOKAT [17]
The answer is 49 because it is
7 0
2 years ago
Y + 0.5xy = x + 2; x = 1<br> How do you solve for y
vfiekz [6]

Step-by-step explanation:

replace the value of x with 1

y + 0.5 × 1 × y = 1 + 2

do the maths

y + 0.5y = 3

here the value of y is equal to 1. same goes for x, if we have no given value for them.

1.5y = 3

y = 3/1.5

y = 2

6 0
3 years ago
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