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3 years ago

Help! Please. I don’t know what I did wrong.

Mathematics

1 answer:

Debora [2.8K]3 years ago

6 0

Answer:

1320, permutation

Step-by-step explanation:

There are 12 members

Pick a president

We have 12 choices

Now there are 11 people left to pick from

now pick a vp

We have 11 choices

Now there are 10 people left to pick from

now pick a secretary

We have 10 choices

12*11*10 = 1320

This is a permutation since it matters who is president, vp and secretary

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Lorico [155]

X=6 and Y= 6 square root 2

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2 years ago

Translate this sentence into an equation.

Andrew [12]

Step-by-step explanation:

"product" means multiplication. the same as "times".

so,

135 = r×9

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2 years ago

A spinner is divided into five colored sections that are not of equal size: red, blue, green, yellow, and purple. The spinner is

MAXImum [283]

The answer is 0.04 (I hope). Here is an explanation:

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3 years ago

A store marks up all of their merchandise by 70%. The floor price of a scarf is $117.25.

KiRa [710]

Answer:

$68.97

Step-by-step explanation:

Markup is the difference between the cost of an item and the price at which it is sold:

cost price + markup = selling price

Here, the markup is said to be 70%. The base for that percentage can be either the cost price or the selling price. The way this question is worded suggests the markup is 70% of the cost price.

So, we have ...

cost price + 0.70 × cost price = selling price

cost price × (1 + 0.70) = selling price

Then, to find the cost price, we can divide by its coefficient in this equation. Doing that gives ...

cost price = (selling price)/1.70

cost price = $117.25/1.70 = $68.97

The store's purchase price before the markup for this item was $68.97.

4 0

3 years ago

The fuel efficiency of one type of car is recorded in a scatterplot where the amount of gas used, x (in gallons), is paired with

sukhopar [10]

Answer:

The y-intercept is 0, which represents the amount of gas used when 0 miles are traveled. The slope is 28, which represents the miles that can be traveled with 1 gallon of gas

Step-by-step explanation:

Let

x----> the amount of gas used in gallons

y ---> the distance traveled in miles

we have

$y=28x$

This linear equation represent a direct variation

The y-intercept is the value of y when the value of x is equal to zero

For x=0, y=0

That means ----> The y-intercept is 0, which represents the amount of gas used when 0 miles are traveled

The slope is $m=28\ \frac{miles}{gallon}$

That means ----> The slope is 28, which represents the miles that can be traveled with 1 gallon of gas

4 0

3 years ago

Read 2 more answers