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3 years ago

11

$1.50 what if you took of the sales tax rate of a helmet.if the sales rate was5%,how much would be the original price of the hel

met?

1 answer:

Alexeev081 [22]3 years ago

6 0

Then it would be 1.50 + 1.50 *5 /100 = 1.50 + 0.075 = 1.575

So, the original price would be $1.575

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What are the diffrent ways to write a ratio pls help

Viefleur [7K]

One way to write a ratio is 5:8 or 5 to 8 and <u>5</u>

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3 years ago

1. What must be true about a circle with a circumference of 16 π?

snow_tiger [21]

1. - B) <span>the diameter is 16

2. - C.) </span><span>diameter is 8

3. - D.) </span><span>a circle's circumference divided by its diameter.

4. - C.) </span><span>the radius.

5. - A.) 9.42

6. - D.) </span><span>16 inches or less.

7. - A.) </span><span>π

8. - B.) </span><span>2 (3.14) π

9. - A.) 8

10. - B.) Perimeter

Hope this helps!</span>

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3 years ago

There are some monkeys in the zoo. 60% are young monkeys and the remaining are baby and old monkeys. The ratio of baby monkeys t

USPshnik [31]

Answer:

There are 60 monkeys in the Zoo

Step-by-step explanation:

In this question, we are asked to calculate the number of monkeys in a Zoo given some information to use.

Let’s have the total number of monkeys be m.

60% are going monkeys. This means number of young monkeys is 0.6m.

The number of baby and old monkeys is obviously 0.4m.

Ratio of baby to old monkeys is 3:1. This means if we splitter 0.4m into 4, number of baby monkeys is 0.3m while number of old monkeys is 0.1m

Now, subtracting the number of baby monkeys from young monkeys give a total of 18 monkeys.

Let’s project this mathematically;

This means ;

0.6m - 0.3m = 18

0.3m = 18

m = 18/0.3

m = 60

There are 60 monkeys in the zoo

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3 years ago

Read 2 more answers

When is a sum of a geometric sequence finit and when is it infinite?

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Hopefully this will help you

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3 years ago

10. A perfect circle measuring 38 feet across was discovered on Brickell Avenue in Miami in 1998. Known as the Miami Circle at B

vivado [14]

Using an exponential function, it is found that the Tequesta settlement is 1845 years old.

<h3>What is an exponential function?</h3>

The exponential equation for a decaying amount of a substance is given by:

$A(t) = A(0)e^{-rt}$

In which:

A(0) is the initial value.

r is the decay rate, as a decimal.

Researching on the internet, the half-life of carbon 14 is of 5,730 years, hence A(5730) = 0.5A(0), which we use to find r.

$A(t) = A(0)e^{-rt}$

$0.5A(0) = A(0)e^{-5730r}$

$e^{-5730r} = 0.5$

$\ln{e^{-5730r}} = \ln{0.5}$

$5730r = -\ln{0.5}$

$r = -\frac{\ln{0.5}}{5730}$

$r = 0.00012096809$

Hence, the equation is:

$A(t) = A(0)e^{-0.00012096809t}$

The wood chips were found to contain 80% of the atmospheric carbon-14, hence we have to find t for which A(t) = 0.8A(0).

$A(t) = A(0)e^{-0.00012096809t}$

$0.8A(0) = A(0)e^{-0.00012096809t}$

$e^{-0.00012096809t} = 0.8$

$\ln{e^{-0.00012096809t}} = \ln{0.8}$

$-0.00012096809t = \ln{0.8}$

$t = -\frac{\ln{0.8}}{0.00012096809}$

$t = 1845$

The Tequesta settlement is 1845 years old.

You can learn more about exponential functions at brainly.com/question/25537936

8 0

2 years ago