Ask question

Ask question

All categories

3 years ago

5

4/5 of the senior class went to prom if 324 seniors went to prom how many are there in the senior class

1 answer:

Sedbober [7]3 years ago

5 0

Answer:

405

Step-by-step explanation:

324 seniors is 4/5 of all seniors. To find how many 5/5 of the seniors is, we find 1/5 and multiply it by 5. Since 4/5 is 4 times 1/5, divide 324 by 4. The answer is 81, which is 1/5 of the seniors. Multiply 81 by 5 to get all 5/5. 81 * 5 is 405

You might be interested in

How to evaluate polynomial function

Katen [24]

Answer:

"Evaluation" mostly means "simplifying an expression down to a single numerical value". Sometimes you will be given a numerical expression, where all you have to do is simplify; that is more of an order-of-operations kind of question

example: So let we are given a polynomial function as:

$f(x)=x^4+3x^3-x^2+6$ and we are aksed to evaluate this polynomial at $x=-3$

Then the value of the polynomial will be:

$f(-3)=(-3)^4+3\times (-3)^3-(-3)^2+6\\\\f(-3)=81+3\times (-27)-9+6\\\\f(-3)=81-81-9+6\\\\f(-3)=-3$

Hence on evaluating the polynomial function f(x) at $x=-3$ we get the value of the polynomial function as $-3$ .

7 0

4 years ago

What is y=1/2(x+3)^2+10 in standard form

anyanavicka [17]

Answer:

Simplified equation in standard form: $y=\frac{1}{4}x^{2}+12\frac{1}{4}$

Original equation in standard form: $y=1/2(x+3)^2+10$

Step-by-step explanation:

$y=\frac{1}{2}(x+3)^2+10$

<u>Step 1: Distribute the </u> $\frac{1}{2}$ <u> :</u>

<u /> $y=(\frac{1}{2}*x+\frac{1}{2}*3)^2+10$ <u />

<u /> $y=(\frac{1}{2}x+1\frac{1}{2})^2+10$ <u />

<u />

<u>Step 2: Take </u> $(\frac{1}{2}x+1\frac{1}{2})$ <u> and square it :</u>

<u /> $y=(\frac{1}{2}x+1\frac{1}{2})^2+10$ <u />

$y=(\frac{1}{2}x)^{2} +(1\frac{1}{2})^2+10$

$y=(\frac{1}{2}x*\frac{1}{2}x)+(1\frac{1}{2}*1\frac{1}{2})+10$

$y=\frac{1}{4}x^{2}+2\frac{1}{4}+10$

<u />

<u>Step 3: Add the constants:</u>

<u /> $y=\frac{1}{4}x^{2}+(2\frac{1}{4}+10)$ <u />

<u /> $y=\frac{1}{4}x^{2}+(12\frac{1}{4})$ <u />

<u />

<u>Step 4: Get rid of the parenthesis:</u>

<u /> $y=\frac{1}{4}x^{2}+12\frac{1}{4}$ <u />

<u />

<u />

3 0

3 years ago

Which decimal number represents two hundred twelve thousandths?

uranmaximum [27]

Answer:

0.00212

Step-by-step explanation:

6 0

3 years ago

Change the following expression into a single fraction: 5-c/2<br><br> HELP PLZ

pochemuha

10 - c/2...

2 will be below 10-c

6 0

3 years ago

What number fall between the square root of 180

zvonat [6]

It will fall betwenn the square root of 169 which is 13 and 196 is 14

7 0

3 years ago