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3 years ago

-4b - 5 + 2b =10. Can I have some help solving this.

Mathematics

2 answers:

kirill115 [55]3 years ago

7 0

Answer:

-7.5

Step-by-step explanation:

-4*- 7.5 =30

2*-7.5= -15

30-5-15=10

kramer3 years ago

5 0

Answer:

-7.5

Step-by-step explanation:

Simplify

-4b - 5 + 2b = 10

-2b - 5 = 10

-2b = 15

b = -7.5

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Solve for z. assume the equation has a solution for z.<br> −p⋅(d+z)=−2z+59<br> Plz Help

Troyanec [42]

Answer:

$z= \frac{pd-59}{-2+p}$

Step-by-step explanation:

-p(d+z)=-2z+59

-pd-pz=-2z+59

lets bring all z integers on one side

-2z+pz = -pd-59

z(-2+p)=-pd-59

z = (pd-59) / (-2+p)

6 0

2 years ago

Will give out 25 points for right answer!!! (Both parts of answer 1)

patriot [66]

Answer:

1.x=41

x=9

Step-by-step explanation:

1.x-7=34

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1 year ago

A hiker begins a trip by first walking 22.2 km

Dominik [7]

9514 1404 393

Answer:

20.6 km

Step-by-step explanation:

Using (East, North) coordinates, the hiker's position ends up being ...

22.2(cos(-45°), sin(-45°)) +40.1(cos(65°), sin(65°))

We're only interested in the second coordinate of this total, which is ...

22.2sin(-45°) +40.1sin(65°) ≈ -15.698 +36.343 = 20.645 . . . km

The y-component of the hiker's position at the end of the second day is 20.6 km north of her starting location.

4 0

2 years ago

Can someone answer this soon?!?

Sever21 [200]

First get all the terms on the same side:

$x^2 + 7x - 4 = 0$

Now solve using the quadratic formula which is:

$\frac{-b±\sqrt{b^2 - 4ac} }{2a}$

Plug in the values:

$\frac{-7± \sqrt{49-4(1)(-4)} }{2}$

So the answer is:

$\frac{-7 ± \sqrt{65} }{2}$

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3 years ago

Why are all even numbers greater than two composite

Vinil7 [7]

Answer:All even numbers greater than two are composite numbers. This is because they are all evenly divisible by themselves and by 1, and since they are.

Step-by-step explanation:

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2 years ago

Read 2 more answers