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2 years ago

PLSSS HELP IF YOU TURLY KNOW THISS

Mathematics

2 answers:

mote1985 [20]2 years ago

8 0

Answer: 8250 or 8.25x10^3 (in standard form)

Step-by-step explanation: Step1 - Do each of the brackets first so, (2.5x10^2) = 250 because you are moving the decimal point up by 2 units (x100 = x10^2).

Step2 - apply the same onto the other bracket so, (3.3x10^1) = 33 because you are moving the decimal point up by 1 unit (x10 = x10^1).

Step3 - because the brackets are next to eachother without any signs in between them we apply multiplication so, 250 x 33 = 8250. Note: you can either leave your answer like this or put it back into standard form depending on what the question asks you to do.

If asked to put the answer 8250 back into standard form then you would get 8.25 x 10^3 remembering the number infront of the multiplier has to be between 1 and 10.

Hope this helps!

Alekssandra [29.7K]2 years ago

5 0

Answer:

I think the answer is 8.25 × 10^3

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Select the correct answer from each drop-down menu.

Illusion [34]

Answer:

-2(57+8) = 14 + 6x

step 1 -2 x 57 and -2 x 8 =

step 2 -114-16 = 14 + 6x

+16 +16

step 3 -114 = 30 + 6x

-30 -30

step 4 -144 = 6x

-144/6 6/6

x = -24

-2(5x + 8) = 14 + 6x

step 1 -2 x 5x and -2 x 8 =

-10x - 16 = 14 + 6x

step 2 -6x -6x

-16x -16 = 14

step 3 +16 +16

-16x = 30

step 4 -16/-16 30/-16

x= -15/8

6 0

2 years ago

Una diseñadora de modas que confecciona trajes de noche, tarda 3 horas en cortar y 2 horas en coser cada vestido de fiesta. Para

ella [17]

For this case we define the following variables:

x: Number of party dresses

y: Number of suits

You have 30 hours per week to cut, that is, the first equation is given by:

$3x + 3y = 30\\$

It is also known that 25 hours per week are available for sewing, that is:

$2x + 3y = 25\\$

It has a system of two equations with two unknowns, solving we have:

$3x + 3y = 30\\\\2x + 3y = 25\\$

Multiplying the second equation by -1:

$3x + 3y = 30\\\\-2x-3y = -25\\$

Adding up:

$x + 0 = 5\\\\x = 5\\$

Substituting x in the first equation:

$3 * 5 + 3y = 30\\\\15 + 3y = 30\\$

Clearing and:

$3y = 30-15\\\\3y = 15\\$

$y = \frac{15}{3}\\\\y = 5\\$

Thus, per week, the designer can produce 5 party dresses and 5 suits working at her maximum capacity.

Answer:

5 Party dresses

5 Suits

5 0

2 years ago

A rectangle has a length that is 5 meters greater than the width. If w represents the width, write an expression, in terms of w,

ahrayia [7]

Answer:

Area of rectangle is $w^2+5w$

Perimeter of Rectangle is $4w+20$ .

Step-by-step explanation:

Given:

Let the width of the rectangle be 'w'.

Also Given:

A rectangle has a length that is 5 meters greater than the width.

Length of rectangle = $w+5\ meters$

We need to write expression for Area of rectangle and Perimeter of rectangle.

Solution:

Now we know that;

Perimeter of rectangle is equal to twice the sum of the length and width.

framing in equation form we get;

Perimeter of rectangle = $2(w+5+w)=2(2w+5) =4w+20$

Also We know that;

Area of rectangle is length times width.

framing in equation form we get;

Area of rectangle= $w(w+5) = w^2+5w$

Hence Area of rectangle is $w^2+5w$ and Perimeter of Rectangle is $4w+20$ .

6 0

2 years ago

Someone please help , I have to show work too :(((

Wewaii [24]

Answer:

Step-by-step explanation:

At most, the area is 140 ---> the area is (3x + 2)10

So, as an inequality, you get (3x + 2) 10 ≤ 140

Simplify

30x + 20 ≤ 140

30x ≤ 120

x ≤ 4

Can 3x + 2 be 15?

Plug in the greatest value of x, and get 3*4 + 2, which is 12 + 2, which is 14

No, at most the length can be 14, which is less than 15.

4 0

3 years ago

Find the area of the shaded triangle.

Alborosie

Answer:

7.5

Step-by-step explanation:

The area of a triangle is found by the formula A=1/2bh, where b is the base length, and h is the height. If we count the squares, we can find that the base length of the triangle is 3 units, and the height is 5 units. If we plug those numbers into the equation to get A=1/2*3*5, we can solve to get A=7.5

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2 years ago