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3 years ago

Benjamin bought 12 goldfish. Each goldfish cost $0.98. How much did Benjamin spend?

Mathematics

2 answers:

almond37 [142]3 years ago

5 0

11.76 dollars. just multiply the numbers together

nikdorinn [45]3 years ago

3 0

You have to multiply the numbers together to get a grand total of $11.76.

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Bo has $500 in his savings account. He plans to add $150 to his savings account every month. Recently, he purchased a tractor to

MariettaO [177]

Answer:

A. $2,000

Step-by-step explanation:

Assuming that the money in the savings account will be used to pay off for tractor.

let the number of months be m

Savings after m months will be 500+ 150m

After m months the installments paid will 200m

To find the months it will take to pay for the tractor in m months, savings and the installments will be the price of the tractor. As an equation it be represented as below:

500+150m +200m = 4000

150m + 200m = 4000-500 (grouping like terms)

350m = 3500 (Making m the subject of the formula)

350m/350 = 3500/350

m = 10

Substituting m into the equation of saving after m months

Savings after m months will be 500+ 150m

Savings after m months will be 500 + 150(10)

Savings after m months will be 500 + 1500

Savings after m months will be $2000

7 0

3 years ago

Read 2 more answers

Let f:X → Y, where X and Y are the set of all real numbers, and x and h are real numbers.

Shkiper50 [21]

Answer:

a) f(x) = x^2

b) f(x) = x

c) any pair of numbers

Step-by-step explanation:

HI!

an example of this kind of function is f(x) = x^2 because

f(x+h) = (x+h)^2 = x^2 + h^2 + 2 xh = f(x) + f(h) + 2xh

teherfore

f(x+h) ≠ f(x) + f(h)

other example is f(x) = x^n with n a whole number different than one

e.g.

f(x)=x^3

f(x+h) = (x+h)^3 = x^3 + h^3 + 3(x^2 h + x h^2) ≠ x^3 + h^3 = f(x) + f(h)

f(x) = x is a function that actually behaves as indicated

f(x+h) = x + h = f(x) + f(h)

others examples of this kind of fucntion are given by multiplying x by any number:

f(x) = ax; f(x+h) = a(x+h) = ax + ah = f(x) + f(h)

Any pair of numbers will make f(x+h) = f(x) + f(h), as mentioned in the previous section

lest consider 10 and 5

f(10+5) = 2 *(10+5) = 2*15 = 30

f(10) = 2*10 = 20

f(5) = 2*5 = 10

f(10) + f(5) = 20+10 = 30 = f(10+5)

5 0

3 years ago

Gary is testing a river water sample in his lab. Initially, there are 64 bacteria in the river water sample. The number of bacte

rusak2 [61]

<h2>Hello!</h2>

The answers are:

- The quantity that represents the initial number of bacteria is 64.

- The quantity that represents the rate at which the number of bacteria is increasing is (1+0.12) or 1.12 which means the growth rate percentage for the bacteria is 0.12 or (0.12*100), it will be 12%.

To solve the problem, and complete the statements, we need to remember the form of the exponential growth.

The exponential growth formula is given by the following formula:

$P(t)=StartAmount(1+PercentageRate)^{t}$

Where,

Start Amount, is the starting population or amount.

(1+Percentage Rate), is the increasing rate

Percentage Rate, is the growth rate percentage.

t, is the time elapsed.

Now, we are given the following expression:

$P(3)=64(1.12)^{3}$

Which can be rewrited as:

$P(3)=64(1+0.12)^{3}$

So, we have that:

- The quantity that represents the initial number of bacteria is 64.

- The quantity that represents the rate at which the number of bacteria is increasing is (1+0.12) or 1.12 which means the growth rate percentage for the bacteria is 0.12 or (0.12*100), it will be 12%.

Have a nice day!

7 0

3 years ago

I really need help right now please

Bad White [126]

20.00 -7.45
12.55 Is the result

3 0

2 years ago

Read 2 more answers

Why does 4000 times 5% equal to 200

Leni [432]

Answer:

yayy:]

Step-by-step explanation:

try dividing 200 by 400

or write and fraction 200/400 and then divide

also 5% is 1/20

and 20 x 200= 4000

5 0

3 years ago