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3 years ago

How do you figure out 23.5% of 128

Mathematics

1 answer:

san4es73 [151]3 years ago

3 0

Convert the percentage into a decimal by dividing by 100:

$23.5\% \div 100 = 0.235$

Multiply 128 by this decimal:

$128 \cdot 0.235 = \boxed{30.08}$

23.5% of 128 will be 30.08.

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5. -[-2(x-4) - |1-3|] = -2x18

irina [24]

Solving the expression $-[-2(x-4) - |1-3|] = -2x18$ we get value of x: $x=\frac{3}{19}$

Step-by-step explanation:

We need to solve the equation $-[-2(x-4) - |1-3|] = -2x18$ and find value of x

Solving:

$-[-2(x-4) - |1-3|] = -2x18$

Multiply -2 with terms inside the bracket

$-[-2x+8 - |1-3|] = -2x18$

Solving |1-3| we get |-2|=2

$-[-2x+8 - 2] = -2x18$

$-[-2x+6] = -2x18$

Multiply (-) sign with terms inside the bracket

$+2x-6 = -2x18$

Multiply 2x with 18

$2x-6 = -36x$

Add 36x on both sdides

$2x-6+36x =0$

$38x-6 =0$

Add 6 on both sides:

$38x =6$

Divide both sides by 38

$x=\frac{6}{38}$

Simplifying:

$x=\frac{3}{19}$

So, Solving the expression $-[-2(x-4) - |1-3|] = -2x18$ we get value of x: $x=\frac{3}{19}$

Keywords: Solving Equations

Learn more about Solving Equations at:

#learnwithBrainly

3 0

4 years ago

How do i solve this?

vodka [1.7K]

Step-by-step explanation:

all I see is a piece of paper

5 0

3 years ago

Room occupancy percentage or ROP is A. Total rooms available divided by number of rooms sold B. Room cost divided by room sales

Jet001 [13]

Answer:

Option D is the correct answer.

Step-by-step explanation:

Room Occupancy Percentage:

It is defined as the ratio of total number of rooms occupied to the total number of rooms available.
Formula:

$ROP =\dfrac{\text{Number of rooms availabe}}{\text{Number of rooms available}}\times 100\%$

Thus, the correct answer is:

Option D)

Total rooms occupied divided by total available rooms

3 0

3 years ago

Two complex numbers are given byz1= 3 +j4 andz2= 2 +j3. Determine in both polar andCartesian forms

Marat540 [252]

Answer:

Cartesian

z₁= 3 +4*j

z₂= 2 +3*j

Polar

z₁=5 * e^ (0.927*j)

z₁=√13 * e^ (0.982*j)

Step-by-step explanation:

for the complex numbers z the cartesian form of is

z= x + y*j

then

1) z₁= 3 +4*j (cartesian form)

2) z₂= 2 +3*j (cartesian form)

the polar form is

z= r* e^jθ

where

r= √(x²+y²) → r₁ = √(3²+4²) = 5 , r₂ = √(2²+3²) = √13

and

θ = tan⁻¹ (y/x) → θ₁ = tan⁻¹ (4/3)= 0.927 rad , θ₂ = tan⁻¹ (3/2)= 0.982 rad

then

z₁=5 * e^ (0.927*j)

z₁=√13 * e^ (0.982*j)

3 0

4 years ago

25x + 10y = 600<br> 5x - 3y = 70

Nutka1998 [239]

I don’t know what tou want us to figure out, do you want the simplified answer or what x and y are?

6 0

3 years ago