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lubasha [3.4K]
4 years ago
9

Decide whether the rates are equivalent. 30 beats per 20 second 90 beats per 60 seconds

Mathematics
1 answer:
MariettaO [177]4 years ago
4 0

Answer:

Yes

Step-by-step explanation:

Per 60 second divide by per 20 seconds = 3.

90 beats divided by 30 beats = 3.

Does 3 = 3?

Yes, which means that the answer to the question is yes.

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Answer:

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5 0
3 years ago
Which expression is equivalent to 25a + 5b - 13
Ainat [17]

5(5a+b)-13

You would have to distribute

5*5a=25a

5*b=5b

6 0
4 years ago
Read 2 more answers
Suppose you deposit $1200 into a savings account that compounds interest continuously at 3.9%. You left your money in the accoun
kodGreya [7K]

Answer: you would have $1772 at the end of 10 years.

Step-by-step explanation:

The formula for continuously compounded interest is

A = P x e (r x t)

Where

A represents the future value of the investment after t years.

P represents the present value or initial amount invested

r represents the interest rate

t represents the time in years for which the investment was made.

e is the mathematical constant approximated as 2.7183.

From the information given,

P = $1200

r = 3.9% = 3.9/100 = 0.039

t = 10 years

Therefore,

A = 1200 x 2.7183^(0.039 x 10)

A = 1200 x 2.7183^(0.39)

A = $1772 to the nearest dollar

4 0
4 years ago
1) The sum of the digits in a 2 digit number is 7. Reversing the digits increases the number by 9. What is the number?
Brilliant_brown [7]

Answer:

34

Step-by-step explanation:

Sum of two numbers = 7

1+6

2+5

3+4

34+9=43

6 0
3 years ago
Which describes all of the values for which the graph is positive and decreasing?
tekilochka [14]
The statement that describes all of the values for which the graph is positive and decreasing is:

C.) ALL REAL VALUES OF X WHERE 1 < X < 3

The number 1 ensures that the value of x will remain positive.
Since x is less than 3, then the value of x is decreasing.
8 0
3 years ago
Read 2 more answers
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