Find −39÷(−13) help me

Answer:

Because the object on scale 1 weighs more than the object on scale 2, each pound of error results in a lesser percent error. Scale 1 was 10 pounds off and scale 2 was 3 pounds off, so scale 1 was 10% off and scale 2 was 12% off.

The object on scale 1 weighs 100 pounds and the object on scale 2 weighs 25 pounds so the object on scale 1 weighs more than scale 2.

Scale 1 error margin:                                            Scale 2 error margin:

= Actual weight - measured weight                    = 25 - 22

= 100 - 90                                                              = 3 pounds

= 10 pounds

Scale 1 error percentage:                                     Scale 2 error percentage:

= Error margin/ Actual weight                              = 3/25

= 10/100                                                                 = 12%

= 10%

Scale 1 object has less percent error.

Answer:

Fill in Blanks in Caps and Numbers are in ()

Because the object on scale 1 weighs (MORE) than the object on scale 2, each pound of error results in a (LESSER) percent error. Scale 1 was (10) pounds off and scale 2 was (3) pounds off, so scale 1 was (10)% off and scale 2 was (12)% off

Step-by-step explanation:

I got it right on TTM so trustt me ;)

Answer:

option 1

Step-by-step explanation:

Combine like terms

[tex]1 + 4.25n + \frac{3}{2}p - 3 + (-2p) + \frac{5}{4}n=1 - 3 + 4.25n +\frac{5}{4}n+\frac{3}{2}p+(-2p)\\[/tex]

                                                   [tex]= -2 + 4.25n + 1.25n + \frac{3}{2}p-\frac{2*2}{1*2}p\\\\= - 2 + 5.5n +\frac{3}{2}p+\frac{4}{2}p\\\\= -2 + 5.5n +\frac{3-4}{2}p\\\\= - 2 + 5.5n -\frac{1}{2}p\\\\= 5.5n - \frac{1}{2}p - 2[/tex]

Answer:

2400

Step-by-step explanation:

half of 4800 is 2400

Answer:

Step-by-step explanation:

First we need to cross multiply ok?

[tex]100 times x=4800times50[/tex]

[tex]100x=240000[/tex]

Divide 100 both sides

[tex]x=2400[/tex]

Hence your answer is 2400, hope this helps :)

Answer:

(-12)²=(-12×-12)=144

Answer: 144

Step-by-step explanation:

(-12)^2

= -12(-12)

= 12(12)

= 144

Answer:

f)-2

thats the right answer

I am sure

hope it helps

Answer:

B

Step-by-step explanation:

x=4 so

2x4=8

8+5=13

Carlos's sister is 4 years old, therefore it is B.

Answer:

B

Step-by-step explanation:

Answer:

instructions unclear

Step-by-step explanation:

Answer:x = y = 3 x + 3 y = 9 = 5 x + 4 y = 10 =

Step-by-step explanation:

Answer:

-3.3f

Step-by-step explanation:

-22+-4=-26, that's why there is -26 at the end.

-6.2f+2.9f=-3.3f

-3.3f-26

Hope it helped!

Please give brainliest, thank me and rate it 5. :)

Answer:

x = 5 / (a+b+3)

Step-by-step explanation:

ax+3x=bx+5

x = 5 / (a+b+3)

Answer:

Hi... U should do like this

Answer:

k + 141

Step-by-step explanation:

the sum means addition .

hope this helps !

Answer:

495

Step-by-step explanation:

165/3=495/9

So 495 miles

Answer:

495

Step-by-step explanation:

 3        =     9

165             x

9 x 165 = 1485

1485 / 3 = 495

Answer:

My= 60

Oy=447

Step-by-step explanation:

Answer: μY = 60 dollars

σY ≈ 447 dollars

Step-by-step explanation:

Answer:

I hope I got it correct

Step-by-step explanation:

How to Find the Mean. The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.

Median

Arrange your numbers in numerical order.

Count how many numbers you have. If you have an odd number, divide by 2 and round up to get the position of the median number.

If you have an even number, divide by 2. Go to the number in that position and average it with the number in the next higher position to get the median.

To find the mode, or modal value, it is best to put the numbers in order. Then count how many of each number. A number that appears most often is the mode.

Answer:

[tex]1 \times \frac{1}{4} - \frac{3}{20} (4 \times \frac{1}{3} - 2 \times \frac{1}{2} ) \times 5 \\ \frac{1}{4} - \frac{3}{4}( \frac{4}{3} - 1) \\ \frac{1}{4}- \frac{3}{4} ( \frac{1}{3} ) \\ \frac{1}{4} - \frac{1}{4} \\ \boxed{0}[/tex]

Answer:

∡W = 73°

∡X = 81°

∡Y = 26°

Step-by-step explanation:

let 'y' = measure angle Y

let '3y - 5' = measure of angle W

let '3y + 3' = measure of angle X

add all together and set equal to 180

y + 3y + 3y - 2 = 180

7y = 182

y = 26

substitute 26 for y in '3y+3' to find measure of angle X

substitute 26 for y in '3y-5' to find measure of angle W

Answer:

3/2

Step-by-step explanation:

slope is rise over run

or y change divided by x change

to find the slope you need to find points on the graph that meet exact points on the graph

i see (0,0) and (4,6)

to find slope without graph it would be (y2-y1)/(x2-x1)

in this case (6-0)/(4-0)

=6/4

=3/2

=1  1/2

with graph you can count that it goes up 3 squares while moving two squares to the right

3/2

hope this helps

Answer: X=86

Step-by-step explanation: do 47+47=94 94-180=x

180= sum of all angles in a triangle btw hopr this helps

9514 1404 393

Answer:

Step-by-step explanation:

The price difference is found by subtracting Emma's price from DeShawn's price. Each price is the product of the number of square feet and the price per square foot.

The number of square feet is already given in the answer form, so you only need to fill in the per square foot prices. Those are found in the table. Both the window name and the window area give clues as to which is the right price to choose.

The expression is (4² × 33) - (3² × 27).

__

For the second fill-in, you need to actually do this arithmetic. For many calculators, you can enter this expression directly.

DeShawn paid $285 more for his window than Emma.

Answer:

[tex]\sqrt{2}[/tex] is a irrational number

Answer:

Equation of a line that passes through the point ( 6,-3 ) and is parallel to the graph of y = 3x + 1 is [tex]\mathbf{y=3x-21}[/tex]

Step-by-step explanation:

We need to write equation of a line that passes through the point ( 6,-3 ) and is parallel to the graph of y = 3x + 1

The equation will be in slope-intercept form i.e [tex]y=mx+b[/tex] where m is slope and b is y-intercept.

Finding Slope

Since the lines are parallel to each other, their slopes will be equal.

Slope of given line: y = 3x + 1 is 3 (Compare it with general equation [tex]y=mx+b[/tex] we get m = 3)

So, slope of required line is: m=3

Finding y-intercept

Using the point (6,-3) and slope m = 3 we can find y-intercept by using the formula:

[tex]y=mx+b\\-3=3(6)+b\\-3=18+b\\b=-3-18\\b=-21[/tex]

So, we get y-intercept: b= -21

Equation of required line

The equation of required line having slope m=3 and y-intercept b = -21 is:[tex]y=mx+b\\y=3x-21[/tex]

So, equation of a line that passes through the point ( 6,-3 ) and is parallel to the graph of y = 3x + 1 is [tex]\mathbf{y=3x-21}[/tex]

Answer:

be the volume of a sphere of diameter d. To find the volume, take the cube of the diameter, then multiply by $$\pi$$ and divide by 6. - Slader.

Answer:

43.2

Step-by-step explanation:

Set up an equation to model the situation;

2x + 9 = 95.4

"x" represents the unknown number. 2x is present because the number is double. 9 is added because the problem says that Colin added 9. This is set equal to 95.4, because the result attained is 95.4.

Solve the equation using inverse operations;

2x + 9 = 95.4

    -9       -9

2x = 86.4

/2     /2

x = 43.2

Answer:

d = 780

Step-by-step explanation:

Remark

You can do this with a proportion which will save you figuring out the rate. I'll do it both ways

Proportion

480/8 = x / 13            Cross Multiply

8*x = 13*480

8x = 6240

x = 780 miles

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

Remark

Often times we like questions to follow a formula. Here's the formula method.

Formula

d = r * t

Givens

t = 8 hours

d = 480miles

r = ?

480 = r * 8            

480 / 8 = r

r = 60

Second part

r = 60 miles per hour

t = 13 hours

d = ?

d = 60*13

d = 780 miles