All categories

3 years ago

-3b-75=0 I need 2 solutions

Mathematics

1 answer:

stich3 [128]3 years ago

6 0

Answer:

-25

Step-by-step explanation:

-3b-75=0

+75 +75

-3b=75

/-3 /-3

b=-25

There isn't 2 solutions

---

hope it helps

You might be interested in

Solve 3x+3/5>=4/5<br><br> Answer:

Sedbober [7]

Answer:

Step-by-step explanation:

Solution:

3x+3/5 = 0

3•x+3/5 = 0

15x = -3

x = -1/

= -0.2

7 0

3 years ago

I need help..........

Sedbober [7]

49 would be in the next space after 42 because this sequence is counting by 7s

6 0

3 years ago

N is a positive integer

Murrr4er [49]

Part (1)

n is some positive integer. Let's say for now that n is even. So n = 2k, for some integer k

This means n-1 = 2k-1 is odd since subtracting 1 from an even number leads to an odd number.

Now multiply n with n-1 to get

n(n-1) = 2k(2k-1) = 2m

where m = k(2k-1) is an integer

The result 2m is even showing that n(n-1) is even

------------

Let's say that n is odd this time. That means n = 2k+1 for some integer k

And also n-1 = 2k+1-1 = 2k showing n-1 is even

Now multiply n and n-1

n(n-1) = (2k+1)(2k) = 2k(2k+1) = 2m

where m = k(2k+1) is an integer

We've shown that n(n-1) is even here as well.

------------

So overall, n(n-1) is even regardless if n is even or if n is odd.

Either n or n-1 will be even. If you multiply an even number with any number, the result will be even.

=======================================================

Part (2)

n is some positive integer

2n is always even since 2 is a factor of 2n

2n+1 is always odd because we're adding 1 to an even number. The sequence of integers goes even,odd,even,odd, etc and it does this forever.

-----------

Another way to see how 2n+1 is odd is to divide 2n+1 over 2 and you'll find that we get (2n+1)/2 = 2n/2+1/2 = n+0.5

The 0.5 at the end is not an integer, so there's no way that (2n+1)/2 is an integer; therefore 2n+1 is odd.

6 0

3 years ago

You can peel 48 potatoes in 10 minutes. How long will it take you to peel 100 potatoes?

dybincka [34]

Answer:

About 20.8 minutes

Step-by-step explanation:

TO solve this just think of it as a ratio. The number of potatoes goes on top and the time goes on bottom.

That is what the first one would look like. In the second one we know the number of potatoes but we are trying to find the time (x).

100

___

Take these two ratios and set them equal to each other.

$\frac{48}{10} =\frac{100}{x}$ Next you cross multiply (take 48 times x and 100 times 10).

48x=1000 Now divide by 48 and you have your answer.

About 20.8 minutes

7 0

4 years ago

determine an equation of a line in standard form that is perpendicular lo the line 2y = -x + 3 and passes through the point (4,

Nataliya [291]

First, i put the equation in y=mx+b by dividing 2, since its 2y. since it’s perpendicular we’re talking about you switch the sides (opposite reciprocals). the rest should be self explanatory.

4 0

3 years ago