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3 years ago

8

Kylie is planning a ski trip. The equation C = 470 +299 models the relation between the cost in dollars, C, of the ski trip and

the number of skiers,

2 answers:

DENIUS [597]3 years ago

3 0

Answer:

So what exactly is the question? bc it doesn't actually show a question

Step-by-step explanation:

inessss [21]3 years ago

3 0

divide 470 by 299 and then that should be your answer on the number of skiers

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The game commission observes the fish population in a stream and notices that the number of trout increases by a factor of 1.5 e

just olya [345]

Answer:

A - $f(t)=80(1.5)^t$

B - Graph given below

C - Number of trouts in 5th week are 607.2

D - Population of trouts will exceed 500 on the 5th week.

Step-by-step explanation:

We are given that,

The number of trout increases by a factor of 1.5 each week and the initial population of the trout is observed to be 80.

Part A: So, the explicit formula representing the situation is,

$f(t)=80(1.5)^t$ , where f(t) represents the population of trouts after 't' weeks.

Part B: The graph of the function can be seen below.

It can be seen that the function is an exponential function.

Part C: It is required to find the number of trouts in the 5th week.

So, we have,

$f(5)=80(1.5)^5$

i.e. $f(5)=80\times 7.59$

i.e. f(5) = 607.2

Thus, the number of trouts in 5th week are 607.2

Part D: We are given that the trout population exceeds 500.

It is required to find the week in which this happens.

So, we have,

$50$

i.e. $(1.5)^t>\frac{500}{80}$

i.e. $(1.5)^t>6.25$

i.e. $t\log 1.5>\log 6.25$

i.e. $t\times 0.1761>0.7959$

i.e. $t>\frac{0.7959}{0.1761}$

i.e. t > 4.5

As, t represents the number of weeks. So, to nearest whole, t = 5.

Thus, the population of trouts will exceed 500 on the 5th week.

7 0

3 years ago

kicyunya [14]

Answer:

D. p = 6.25h

Step-by-step explanation:

6.25 (2) = p 12.50

6.25 (4) = p 25.00

6.25 (6) = p 37.50

6.25 (8) = p 50.00

7 0

3 years ago

Students are making ornaments and each takes 1 2 of a piece of Bristol board. They go to the cupboard and find 1 1 2 pieces of B

s2008m [1.1K]

Answer: 3

Step-by-step explanation:

Feom the question, we are informed that students are making ornaments and each takes 1/2 of a piece of Bristol board and that they go to the cupboard and find 1 1/2 pieces of Bristol board.

The number of ornaments that they can make will be calculated by dividing 1 1/2 by 1/2. This will be:

= 1 1/2 ÷ 1/2

= 3/2 ÷ 1/2

= 3/2 × 2/1

= 3

They can make 3 ornaments

8 0

3 years ago

Please help me! :)

Eva8 [605]

y = - $\frac{4}{3}$ x - 3

the equation of a line in ' slope intercept form ' is

y = mx + c

where m is the slope and c the y-intercept

here m = - $\frac{4}{3}$ and c = - 3

thus y = - $\frac{4}{3}$ x - 3 is the slope- intercept equation

3 0

4 years ago

Write the quadratic equation whose roots are 3 and -6, and whose leading coefficient is 3.

Delvig [45]

Answer:

Step-by-step explanation:

if the roots are 3 and -6, we can start with:

$(x-3)(x+6)=0$

But the leading coefficient must be 3, we just add a 3 to one of the x's:

$( 3 x-3)(x+6)=0$

But now we have to make sure the roots work again:

$( 3 x-9)(x+6)=0$

So our equation is:

[/tex]f(x)=3x^2+9x-54[/tex]

4 0

4 years ago