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3 years ago

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Math worth 10 points thx

1 answer:

bija089 [108]3 years ago

6 0

what thy answer child

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Write a linear function that models each situation. a 24. The enrollment at a local community college was 5,000 in 1960. In the

tia_tia [17]

9514 1404 393

Answer:

y = 250x +5000

Step-by-step explanation:

The "initial" enrollment is 5000, when x=0 years after 1960.

The rate of change of enrollment is ...

change of enrollment / change in time

= (15000 -5000)/(2000 -1960)

= 10000/40 = 250 . . . . students per year

Then the desired equation is ...

y = 250x + 5000

8 0

3 years ago

Help me please!!!!!!

lara [203]

Answer:

a. $b=2$

b. $b = 2a$

c. $a = \frac{1}{2}b\\$

d. $b = 10$

Step-by-step explanation:

Gradient is just another similar term for slope l, $m$ , and it can be calculated by $m = \frac{y_2 -y_1}{x_2 -x_1}\\$ where $x_n$ and 1 $y_n$ is the $xy$ -coordinates of point $n$

We let $(0,0)$ be point $1$ and $(a,b)$ be point $2$ , we can then write the equation:

$m = \frac{b -0}{a -0}\\ m = \frac{b}{a}$ .

It also says that the points are with a gradient of $2$ so $m = 2$ . We can then write the equation:

$2 = \frac{b}{a}\\$

Finding $b$ If $a = 1$ :

$2 = \frac{b}{a} \\ 2 = \frac{b}{1} \\ 2 = b \\ b = 2$

Writing an expression for $b$ in terms of $a$ .

$2 = \frac{b}{a} \\ \frac{b}{a} = 2 \\ \frac{b}{a} \times a = 2 \times a \\ b = 2a$

Writing an expression for $a$ in terms of $b$

$2 = \frac{b}{a} \\ \frac{b}{a} = 2 \\ \frac{a}{b} = \frac{1}{2} \\ \frac{a}{b} \times b = \frac{1}{2} \times b \\ a = \frac{1}{2}b$

Finding $b$ if $a = 5$

$2 = \frac{b}{a} \\ 2 = \frac{b}{5} \\ \frac{b}{5} = 2 \\ \frac{b}{5} \times 5 = 2 \times 5 \\ b = 10$

4 0

3 years ago

As an estimation we are told £3 is €4.<br> Convert €52 to pounds.

kati45 [8]

Answer:

£69.33

Step-by-step explanation:

4/3=1.33333333333 so that 52*1.33333333333 would convert 52 euros into 52 pounds

7 0

4 years ago

Slove the system of linear equations by graphing.<br>-x+y=3<br>x+y= -3

Rainbow [258]

Answer: it is a linear line

Step-by-step explanation:

They both together make 0

7 0

3 years ago

What is a way to write a number that shows the place value of each digit?

valentina_108 [34]

Eg: 24936
Place value of 4 is 4x10 raised to the power of 3 or 4000

7 0

3 years ago

Read 2 more answers