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VladimirAG [237]
3 years ago
13

If 4/5 x blank = 2/5, what is blank

Mathematics
2 answers:
Brut [27]3 years ago
8 0

So we know nothing about blank so we can infer that’s our X in this case

So 4/5x=2/5 do inverse multiplication for 4/5 to get rid of it from the left side so you’re left with

X=5/4*2/5 just multiply across and you get 10/20 now simplify

1/2

iogann1982 [59]3 years ago
6 0

Answer:

1/2

Step-by-step explanation:

Better write, "If (4/5)x = 2/5, what is x?  Please do not use 'x' to denote multiplication; use " * " instead.

If (4/5)x = 2/5, multiplying both sides by (5/4) will isolate x:

(5/4)(4/5)x = (5/4)(2/5), or

               x = 10/20, or x = 1/2.  The unknown number is 1/2.

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If the actor is to the audience’s right the actor is _______.
kati45 [8]
I think the answer is stage left because if you flip your view point, you'll get stage left. 
Hopefully that helped! :) 
7 0
3 years ago
I don’t understand can someone please explain how to work this out and what the answer is
joja [24]

When you see an equation with parenthesis around it, you can use this:

Parenthesis

Exponents

Multiplication

Division

Addition

Subtraction

Otherwise known as PEMDAS.

We can see that in the equation, there are parenthesis, so we can open those. We open parenthesis by taking the number right next to the parenthesis (or outside the parenthesis) and we multiply that number by everything inside. So this is what it would look like:

-2x^2 - 10x + 8

See how the signs changed? This rule only applies when you multiply something, but here is how I think of it:

+ and + always equals +.

- and - always equals +.

- and + always equals -.

+ and - always equals -.

So that's it! Just to be clear, the answer is:

-2x^2 - 10x + 8

Hope I helped, sorry if I'm wrong!

`Mschmindy

4 0
4 years ago
What is equivalent to 1/2 (6x + 12 + 3)? Is it A. 18x + 36 - 9 B. 2x + 4 - 1 C. 2x + 12 - 3 D. 18x + 12 - 3
Kobotan [32]
Answer choice A is correct
6 0
3 years ago
PLEASE HELP! WILL GIVE 70 POINTS!!
Tresset [83]

Answer:

A=189\ mm^2

Step-by-step explanation:

<u>Surface Areas </u>

Is the sum of all the lateral areas of a given solid. We need to compute the total surface area of the given prism. It has 5 sides, two of them are equal (top and bottom areas) and the rest are rectangles.

Computing the top and bottom areas. They form a right triangle whose legs are 4.5 mm and 6 mm. The area of both triangles is

\displaystyle A_t=2*\frac{b.h}{2}=b.h=(4.5)(6)=27 mm^2

The front area is a rectangle of dimensions 7.7 mm and 9 mm, thus

A_f=b.h=(7.5)(9)=67.5 \ mm^2

The back left area is another rectangle of 4.5 mm by 9 mm

A_l=b.h=(4.5)(9)=40.5  \ mm^2

Finally, the back right area is a rectangle of 6 mm by 9 mm

A_r=b.h=(6)(9)=54 \ mm^2

Thus, the total surface area of the prism is

A=A_t+A_f+A_l+A_r=27+67.5+40.5+54=189\ mm^2

\boxed{A=189\ mm^2}

4 0
3 years ago
Y=-5/3x + 28/3 in standard form
Temka [501]
3y + 5x - 28 = 0

anything please ask me
7 0
3 years ago
Read 2 more answers
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