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charle [14.2K]
3 years ago
9

A jar contains 10 red marbles and 20 blue marbles. if one red marble is selected and then placed back into the jar, what is the

probability of the next marble being a blue marble?
Mathematics
1 answer:
Serggg [28]3 years ago
6 0
You have a 30% chance of getting a blue marble. <span />
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Alice earned $622.50 in interest on her savings in the bank. Before interest, the account had $12,450. What is the approximate p
Akimi4 [234]
Hi there

To find The interest rate the formula is
R=I÷pt
r interest rate?
I interest earned 622.5
P principle 12450
T time 1 year
So
R=622.5÷(12,450×1)
R=0.05×100=5%

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3 years ago
A one year membership to metro gym costs $460. There is a fee of $40 when you join, and the rest is paid monthly. Write an equat
zysi [14]

Answer: The equation that would help members to find how much they would pay per month is

40 + 12x = 460

Step-by-step explanation:

Let x represent the amount of money that members would pay per month.

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There is a fee of $40 when you join, and the rest is paid monthly. This means that the cost of using the gym for x months would be

40 + xy

A one year membership to metro gym costs $460. Therefore are 12 months in a year. Therefore,

40 + 12x = 460

12x = 460 - 40 = 420

x = 420/12 = 35

The equation that would help members to find how much they would pay per month is

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3 years ago
Michelle can run 5.44 miles in 68 minutes. What is Michelle's average speed, in miles per minute?
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5.44 miles/68 minutes=
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insens350 [35]

Answer:

37%

Step-by-step explanation:

37% equal 37 of a whole 100 is a whole

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For what values of y : is the value of the binomial 5y−1 greater than the value of the fraction 3y−1/4
VashaNatasha [74]

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y>0.375

Step-by-step explanation:

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