All categories

3 years ago

How do I answer this question?

Mathematics

1 answer:

Thepotemich [5.8K]3 years ago

4 0

Answer:

The total cost for 8 skiers=316 dollars

Step-by-step explanation:

Given that the expression 15n+12n+100 represents the total cost in dollars for skis,boots and a lesson for n skiers.

To simplify the given expression :

15n+12n+100=27n+100

27n=-100

Therefore $n=\frac{-100}{27}$

Now to find the total cost for 8 skiers.

The total cost for 8 skiers can be written as below

Put n=8 in the given expression 15n+12n+100

15(8)+12(8)+100

=120+96+100

=316

Therefore the total cost for 8 skiers is 316 dollars

The total cost for 8 skiers=316 dollars

You might be interested in

Math Help Please?

galben [10]

Sounds like you're more interested in being given answers than you are in receiving help and guidance towards finding your own answers.

I will give you one answer and ask you to find the other two.

First, rearrange the given data 3 2 6 4 5 3 4 2 7 5 3 in ascending order. Since you have 11 data points, merely choose the point in the exact middle (that is, the 6th point). That's your "median" for this data set.

Your turn: look up "mean" and share the definition you find. Do the same for "mode."

Supposing you sum up the 11 data points and divide that sum by 11. What would this give you? What's its name?

7 0

4 years ago

Order these from least to greatest: .25, 3/8, 7/12, 5/16, .5

ivann1987 [24]

So before I tell you the answer this is a bit of explanation:)

To make it easier change the fraction into decimals!

3/8 = .375

5/16 =.3125

7/12 = .583

.5 = 0.5

.25 = 0.25

So, according to my calculations I believe it goes like this: 0.25, 0.375, 0.3125, 0.5, .583

Really I am not sure if this is correct but I hope this helps you understand you can order it whatever way you want but make sure you understand the explanation :) have a great day!!

6 0

3 years ago

A biology test is worth 100 points and has 36 questions.

Ad libitum [116K]

Answer:

(a) 7 essays and 29 multiple questions

(b) Your friend is incorrect

Step-by-step explanation:

Represent multiple choice with M and essay with E.

So:

$M + E= 36$ --- Number of questions

$2M + 6E = 100$ --- Points

Solving (a): Number of question of each type.

Make E the subject of formula in $M + E= 36$

$E = 36 - M$

Substitute 36 - M for E in $2M + 6E = 100$

$2M + 6(36 - M) = 100$

$2M + 216 - 6M = 100$

Collect Like Terms

$2M - 6M = 100 - 216$

$-4M = - 116$

Divide both sides by -4

$M = \frac{-116}{-4}$

$M = 29$

Substitute 29 for M in $E = 36 - M$

$E = 36 - 29$

$E = 7$

Solving (b): Can the multiple questions worth 4 points each?

It is not possible.

See explanation.

If multiple question worth 4 points each, then

$2M + 6E = 100$ would be:

$4M + xE = 100$

Where x represents the number of points for essay questions.

Substitute 7 for E and 29 for M.

$4 * 29 + x * 7 = 100$

$116 + 7x = 100$

Subtract 116 from both sides

$116-116 + 7x = 100 -116$

$7x = 100-116$

$7x = -16$

Make x the subject

$x = -\frac{16}{7}$

Since the essay question can not have worth negative points.

Then, it is impossible to have the multiple questions worth 4 points

<em>Your friend is incorrect.</em>

6 0

3 years ago

Quadratic factorisation Question, help please.

Anna [14]

The answer to your question is (3x+2)(x+1)

8 0

3 years ago

Pam has a home-based business making and selling scented soaps. She initially spent $75 to purchase soap-making equipment, and t

3241004551 [841]

Answer: Hence, 25 kilograms she will manage to purchase and sell atleast.

Step-by-step explanation:

Let the number of each kilogram of soap be x

Amount she spent to purchase soap making equipment = $75

Amount she spent to purchase the material for each kilogram of soap = $15

So, total expenditure will be

$15\times x+75\\\\=15x+75$

now, Rate at which she sells the soap per kilogram = $18

so, Total earning will be

$18x$

According to question,

$15x+75=18x\\\\75=18x-15x\\\\75=3x\\\\x=\frac{75}{3}\\\\x=25$

So, the total cost of Pam's will be

$15x+75\\\\=15\times 25+75\\\\=375+75\\\\=\$450$

Total sales will be

$18x\\\\=18\times 25\\\\=\$450$

Hence, 25 kilograms she will manage.

4 0

4 years ago