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3 years ago

What is the answer for the equation 3-2y=3

Mathematics

1 answer:

spin [16.1K]3 years ago

7 0

Answer:

Step-by-step explanation:

Subtract 3 from 3 leaving you with -2y = 0

Divide -2 on both sides to isolate y. 0/-2 is 0.

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PLEASE HELP

mr Goodwill [35]

If 3 ft = 1yard

? = 16 yards?

Thats $\frac{16 yards * 3ft}{1yard}$

The common values cancel each other out and you'll have 48 feet :)

3 0

2 years ago

Need help on this please help

Lady_Fox [76]

do 20 x 3.14 and then youll have your anwser...id use a calculator btw

Then round it to the nearest whole number and BOOM anwser!!

i got 62.8 so round that and youll have ur anwser

6 0

3 years ago

The graph of f(x) is shown below, if f(x) and its inverse function,

Yuki888 [10]

Before defining the inverse of a function we need to have the right mental image of function.

Consider the function f(x) = 2x + 1. We know how to evaluate f at 3, f(3) = 2*3 + 1 = 7. In this section it helps to think of f as transforming a 3 into a 7, and f transforms a 5 into an 11, etc.

Now that we think of f as "acting on" numbers and transforming them, we can define the inverse of f as the function that "undoes" what f did. In other words, the inverse of f needs to take 7 back to 3, and take -3 back to -2, etc.

Let g(x) = (x - 1)/2. Then g(7) = 3, g(-3) = -2, and g(11) = 5, so g seems to be undoing what f did, at least for these three values. To prove that g is the inverse of f we must show that this is true for any value of x in the domain of f. In other words, g must take f(x) back to x for all values of x in the domain of f. So, g(f(x)) = x must hold for all x in the domain of f. The way to check this condition is to see that the formula for g(f(x)) simplifies to x.

g(f(x)) = g(2x + 1) = (2x + 1 -1)/2 = 2x/2 = x.

This simplification shows that if we choose any number and let f act it, then applying g to the result recovers our original number. We also need to see that this process works in reverse, or that f also undoes what g does.

f(g(x)) = f((x - 1)/2) = 2(x - 1)/2 + 1 = x - 1 + 1 = x.

Letting f-1 denote the inverse of f, we have just shown that g = f-1. http://dl.uncw.edu/digilib/mathematics/algebra/mat111hb/functions/inverse/inverse.html

5 0

3 years ago

Please Help!!! Will Mark Brainliest!!!

Nady [450]

Answer:

Example 3. Same time problem: Upstream-Downstream.

First, let us explain the meaning of "upstream" and "downstream."

When a boat travels in the same direction as the current, we say that it is traveling downstream.

downstream

Thus if b is the speed of the boat in still water, and c is the speed of the current, then its total speed is

Downstream speed = b + c

When a boat travels against the current, it travels upstream.

upstream

In this case, its total speed is

Upstream speed = b − c

Problem. The speed of a boat in still water is 30 mph. It takes the same time for the boat to travel 5 miles upstream as it does to travel 10 miles downstream. Find the speed of the current.

Solution. The key to this type of problem is same time. That will give the equation,

Time upstream = Time downstream

Now, speed, or velocity, is distance divided by time -- so many miles per hour:

v = d

Therefore,

t = d

The equation will be

Time upstream = Time downstream

Distance upstream

Speed upstream = Distance downstream

Speed downstream

Let x be the speed of the current. Then according to the problem:

_5_

30 − x = 10

30 + x

Therefore,

5(30 + x) = 10(30 − x)

150 + 5x = 300 − 10x

5x + 10x = 300 − 150

15x = 150

x = 10 mph

Step-by-step explanation:

8 0

2 years ago

Do you see a correlation between the two columns? If so, state the relationship.

lora16 [44]

Most of them are +10 because for example 8+10 is 18

7 0

2 years ago