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4 years ago

The product of negative three and a number. Please translate.

Mathematics

1 answer:

ZanzabumX [31]4 years ago

6 0

Answer:

$-3n$

Step-by-step explanation:

"The product of negative three and a number." can be written as -3n, or -3 * n, where n is "the number".

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I hate ratios I don't understand the point of them...

shusha [124]

Answer:

2 : 9

Step-by-step explanation:

Put the given numbers in the expression and simplify:

bikes before : total bikes

= (bikes before) : (bikes before) + (bikes bought)

= 6 : (6 +21)

= 6 : 27

= 2 : 9

_____

<em>Additional comment</em>

A question like this would do little to convince you ratios have some usefulness. There appears to be no point whatever to knowing the fraction of older bikes.

Ratios are used many places in the real world. Perhaps the ratios you encounter most frequently are tax rates.

If you spend any time cooking, you know that certain ratios of ingredients produce better taste and/or texture than other ratios, and you know that (generally) changing the quantity a recipe produces will involve changing all the ingredient amounts by the same ratio.

Finance, health, time, diet budgets are often specifies as ratios: 14% APR, 2.3 infant deaths per 1000 live births, 2 hours outside class for each hour in class, 25% of calories from fat, and so on.

Of course, chemistry is all about ratios. CO₂ and H₂O are perhaps some of the more important ratios in the world right now. These specific ratios of carbon, hydrogen, and oxygen atoms make substances that are both life-giving and life-threatening. Much study is directed at determining and maintaining appropriate ratios of these substances relative to others.

3 0

3 years ago

BRAINLIESTTTTT!!!!

Debora [2.8K]

Hi!

Samuel bought the mixer for $54,205. The value of this (the prive) decreases every year at a costant rate (so, for example, it may decrease of $100 every year).

we are solving for t and we should keep in mind that we multiply the price for the function (1 - rate/100)^time

in f(t) you put the value of year 1 for example

$f(t) = 54205(1- \frac{value1-value2}{value1}) ^t$

Solving for r will bring us to the solution, and we can substitute 1 to t since we are calculating how much it decreases after ONE year.

We would divide for 54205 to cancel out that 54205 multiplicating the parenthesis.

Also, the x is given by the formula (vale2-value1)/value1 to see how much the price changes from year 1 to year 2

We will get $f(t) = 54205(\frac{(47000-41000)}{47000}) ^1$

Again, it would be:

f(t) = 54205(0.13)^1

7 0

4 years ago

Read 2 more answers

PLEASE HELP FAST I WILL GVIE BRAINLIST AND EXTRA MARKS FOR CORRECT ANSWER! THANKS

djyliett [7]

Answer:

f(-2) = 2

Step-by-step explanation:

Look at the graph and find -2 on the x-axis and see what the y-coordinate is on the line where x is -2. When you do this, you can see that where x is -2, y is 2.

So basically it wants the y-value :)

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3 years ago

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Tell whether the system has one solution infinitely many solutions or no solution.

hodyreva [135]

B. hope this helps :)

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4 years ago

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Which property is used in the statement?

antiseptic1488 [7]