pleaseeeeeeeeeeee helpppppppp

Explain what method you would use to solve the following system:

3x + 4y – 5z = -3

-5x -2y + 6z = 5

4x – 8y + 3z = -10




thanks

Answer:

9 straps for $10.25

Step-by-step explanation:

Price rate

Better buy

Answer:

9 straps

Step-by-step explanation:

If you're selling 30 straps for $66 then you get a 2.2 per each

But 9 straps for $10.25 will get 1.139

So, the value that's smaller which is 9 straps for $1.139 is a better buy

Answer:

144 cubic inches

Step-by-step explanation:

volume = l x w x h. This = 8 x 6 x 3.

Hope this helps :)

Answer:

-1.35. As a fraction, it'd be -1 7/20

Step-by-step explanation:

Answer:

10/20

Step-by-step explanation:

if she has 20 in total and there's only two colours I would assume it's an even chance,

For example a coin has two sides, = even chance of getting each side.

Good luck hope this helped

Answer:

The stands will change color at the same time after 54 seconds.

Step-by-step explanation:

Find the Lcm number of both number (18 and 27)

The answer will be 54

Answer:

12

Step-by-step explanation:

V = l*w*h
V = 4*1.5*2
V = 12

Hope this helps :)

Answer:

e

Step-by-step explanation:

Central tendency means “the statistical measure that identifies a single value as representative of an entire distribution." These measures include mean, median, and mode.

Andrew scores 79, 86, 63, and 82 on his tests.

63, 79, 82, 86

Mean: 79 + 86 + 63 + 82 = 77.5 or

Median: 79 + 82 = 80.5

(you have to add these numbers bc there is no exact median as none are repeating)

Mode: There is no exact mode since there is no repeating numbers.

He should use the mean bc the mean is a pretty good number.

I'm not sure if you would want to tell your mother that you're barely getting an average. or higher than failing.

either way, hope this helps :)

Answer:

Make a bell curve for the points 99, 60, 82, 78, 93, 71, 68, 86, 80, 95, 72, 64 · The variables x and y have a proportional relationship, and y=7 when x=2.

Step-by-step explanation:

Answer:

[tex]\frac{9}{16}\ yd.^2[/tex]

Step-by-step explanation:

Area of a square: [tex]a^2[/tex] = [tex]a*a[/tex]

[tex]A = a^2\\\\A = \frac{3}{4}* \frac{3}{4}\\\\A = \frac{9}{16}[/tex]

Therefore, the answer of the scarf is [tex]\frac{9}{16}\ yd.^2[/tex]

Hope this helps!

Answer:  pool b

Step-by-step explanation:

the bigger the number then it the nearest to the tens and it smaller its easy i use common sense

Answer:

V = 1696 in3

Step-by-step explanation:

your asking how many cubes are needed to fill the rectangle which just means your asking for the volume, if you multiply L*W*H you'll get the answer

hope that helps

Answer:

x=1

Step-by-step

Step 1:

Simplify x/x2

Dividing exponential expressions :  

1.1    x1 divided by x2 = x(1 - 2) = x(-1) = 1/x1 = 1/

Equation at the end of step 1:

  2    1         1

 (((—+1)-—)-1)-((2•—)-1)  = 0

    x    x         x

STEP 2:Rewriting the whole as an Equivalent Fraction:

2.1   Subtracting a whole from a fraction

Rewrite the whole as a fraction using  x  as the denominator :

        1     1 • x

   1 =  —  =  —————

        1       x  

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

2.2       Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

2 - (x)     2 - x

——— = ———  

   x          x  

Equation at the end of step 2:

2    1     (2-x)

 (((—+1)-—)-1)-—————  = 0

    x    x       x  

STEP 3:

Simplify 1/x

Equation at the end of step 3:

2          1           (2 - x)

 (((— +  1) -  —) -  1) -  ———————  = 0

    x          x              x  

STEP4:

Simplify: 2/x

Equation at the end of step 4:

    2          1                 (2 - x)

 (((— +  1) -  —) -  1) -  ———————  = 0

    x          x                      x  

STEP 5:

Rewriting the whole as an Equivalent Fraction :

5.1   Adding a whole to a fraction

Rewrite the whole as a fraction using  x  as the denominator :

        1         1 • x

   1 =  —  =  —————

        1            x  

Adding fractions that have a common denominator :

5.2       Adding up the two equivalent fractions

2 + x                x + 2

—————  =  —————

  x                       x  

Equation at the end of step 5:

(x + 2)    1                                (2 - x)

 ((——————— -  —) -  1) -  ———————  = 0

      x       x                                  x  

STEP 6:Adding fractions which have a common denominator :

Adding fractions which have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

(x+2) - (1)                            x + 1

———————————  =  —————

     x                                       x

Equation at the end of step 6:

  (x + 1)                           (2 - x)

 (——————— -  1) -  ———————  = 0

     x                               x

STEP 7:

Rewriting the whole as an Equivalent Fraction :

7.1   Subtracting a whole from a fraction

Rewrite the whole as a fraction using  x  as the denominator :

        1     1 • x

   1 =  —  =  —————

        1       x  

Adding fractions that have a common denominator :

7.2       Adding up the two equivalent fractions

(x+1) - (x)                           1

———————————  =  —

     x                                   x

Equation at the end of step 7:

 1       (2 - x)

 — -  ———————  = 0

 x         x

STEP 8:

Adding fractions which have a common denominator :

8.1       Adding fractions which have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

1 - ((2-x))                              x - 1

———————————  =  —————

     x                                     x    

Equation at the end of step 8:

 x - 1

 —————  = 0

   x  

STEP 9:

When a fraction equals zero :

9.1    When a fraction equals zero ...

Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.

Now,to get rid of the denominator, Tiger multiplys both sides of the equation by the denominator.

Here's how:

 x-1

 ——— • x = 0 • x

  x

Now, on the left hand side, the  x  cancels out the denominator, while, on the right hand side, zero times anything is still zero.

The equation now takes the shape :

  x-1  = 0

.2      Solve  :    x-1 = 0

Add  1  to both sides of the equation :

                     x = 1

One solution was found :

x = 1

Answer:

Im pretty sure its C... Step-by-step explanation: what im seeing here is 10 with the small numbers in front so it looks like scientific notation, Maria has 1 million because 1 x a number = that number, 10 multiplied by itself 6 times equals 1 million, 10 x10 = 100 x 10 = 1000 x 10 = 10,000 x 10 = 100,000 x 10 = 1,000,000. so from this we know what Larry's 10 to the power of 5 is, we need to know what 100,000 x whatever equals. If im doing this right, Larry's number is 1 million 2 hundred thousand which is greater than 1 million. (sorry if the explanation is wanky and sorry if it was wrong, im new to brainly.)

Answer:1200

1 box=240

so if you take 240 x5 you get 1200

Step-by-step explanation:

Answer:

1) 0.392

2) 0.395

3) 0.397

4) 0.393846294629468261456382648477982195862

Step-by-step explanation:

It is asking for 3 numbers greater than 0.39, with three in the tenth place (0.x000) that is less than 1. By adding a number in the thousandth place to 0.39, we automatically make it larger. Adding more digits will make it slightly larger, as long as it isn't a 0. All 4 answers I have provided are correct, however, I would just use the first 3 for your question.

Hope this helps! Have a great day!

Answer:Q9 is 12.2. Q10 is C. Q11 is C. Q12 Is 2.8. The level 3-4 thing the hight is 24.

Step-by-step explanation: a^2+b^2=c^2 pythagoras theorem or whatever. Hope this helped.

Answer:

A

Step-by-step explanation:

I believe the answer is 7

Step-by-step explanation:

The radius is like half of the diameter and 14/2=7

Hope this helps

Answer:

I think it's 4 ft.

Step-by-step explanation:

Answer:

i think it c

Step-by-step explanation:

Oh my gosh,

I need an answer for that as well..

Answer:

EYYRHEHF

Step-by-step explanation:

I HAVE NO IDEA PLEASE I NEED POINTS AND WANT TO BE BRAINLIEST I NEEEED ITTT !!!!11

Answer:

The population will be 66150.

Step-by-step explanation:

3000 / 60000 = 0.05 (5% Increase)

60000 X 1.05 = 66150

Answer: Kentwood, Michigan had a population of 49,000 in the year 2013. The infrastructure of the city allows for a carrying capacity of 60,000 people. rmax ...

and the link mite help

Step-by-step explanation:Hope it helps you.

Answer:

1. 2^5

2. 5^2

3. 3^4

4. 4^3

5. 6^3

6. 3^6

Please give brainliest!!

Answer:

1. 2^5

2. 5^2

3. 3^4

4. 4^3

5. 6^3

6. 3^6

Step-by-step explanation:

Answer:

18

Step-by-step explanation:

parellelogram area is b(vh), 6 x 3 = 18

Answer:

5.(4,6) 6. (2,9) 7. (0,4)

1-4 i dont know

Answer: Than did not move the decimal point three places to the left in the answer

Step-by-step explanation:

Answer:

73

Step-by-step explanation:

72 - 35 = 107

180 - 107 = 73

107 + 73 = 180

Answer: 326

The blank space equals 326, 326 times 15 is 4890 as you’d start by multiplying 326 times 10 then multiply 326 times five then add the two sums and get your answer.

We can use inverse operations to find this question by dividing 4890 by 15. We can check our answer by multiplying 326 by 15.

Answer:

326

Step-by-step explanation:

We can use inverse operations to find this question by dividing 4890 by 15. We can check our answer by multiplying 326 by 15.

Hope this helps :)

Answer:

N = 3 F = 26

Step-by-step explanation:

If there's 26 in total and Michael has folded 3 of them N would be 3. F will be the total after folding 'N' amount left of the clothes!