Use whichever method you choose to solve the system of equations: x + y = 6 and 3x + 5y = 26

Answer:   3 mol of O₂

Solution:

The Balance chemical equation is as follow,

                               2 KClO₃    →    2 KCl  +  3 O₂

According to this equation on decomposition 2 moles of Potassium chlorate (KClO₃) produces 2 moles of Poatassium chloride (KCl) and 3 moles of oxygen gas (O₂).

Therefore, when,

                    2 moles of KClO₃ produces  =  3 moles of O₂

So,

                 2 moles of KClO₃ will produce  =  X moles of O₂

Solving for X,

                    X =  (2 mol × 3 mol) ÷ 2 mol

                   X  =  3 mol of O₂

Using above method you can calculate any amount of O₂ or KCl produced by decomposing any amount of KClO₃.

Answer:

3 mol of O₂

Step-by-step explanation:

i got a hundred on Edge

Answer:

  10 mm = 1 cm

Step-by-step explanation:

10 mm = 1 cm

__

The SI prefix "milli-" means 1/1000. The prefix "centi-" means 1/100. Consequently 1 cm = 0.010 m and 1 mm = 0.001 m.

There are 10 mm in 1 cm.

Answer: 3-

Step-by-step explanation:

Answer:

a = 1.972

Step-by-step explanation:

a + 3 1/4 = 5 2/9

find a common denominator

a + 3 9/36 = 5 8/36

a = 5 8/36 - 3 9/36

a = 188/36 - 117/36

a = 71/36

a = 1.982

Answer:

X= -5

y= -9

Step-by-step explanation:

7x -4y = 1

4(5x -y = -16)

(7x - 4y = 1) - (20x -4y = -64)

X= -5

y= -9

Answer:

1.5

Step-by-step explanation:

because if u divide 6 by 4 that will equal 1.5

Step-by-step explanation:

An appropriate estimation would be to the ones place.

[tex] \frac{36 \div 4}{40 \div 4} = \frac{9}{10} [/tex]

9/10 (90%) is closer to 1 than to 0.

The estimation for 36/40 is 1.

1/3 (33%) is closer to 0 than to 1.

The estimation for 1/3 is 0.

[tex] \frac{70 \div 10}{100 \div 10} = \frac{7}{10} [/tex]

7/10 (70%) is closer to 1 than to 0.

The estimation for 7/10 is 1.

1/8 (12.5%) is closer to 0 than to 1.

The estimation for 1/8 is 0.

Answer:

b=-3/4 or b=-0.75

Step-by-step explanation:

[tex]2(-2b+3)=9[/tex]

[tex]2b+3=\cfrac{9}{2}[/tex]

[tex]-2b=\cfrac{9}{3} -3[/tex]

[tex]-2b=\cfrac{3}{2}[/tex]

[tex]b=-\cfrac{\frac{3}{2} }{2}[/tex]

[tex]b=-\cfrac{3}{2\times 2}[/tex]

[tex]b=-\cfrac{3}{4}[/tex]

Hope it helps! :)

Answer:

a. 5

Step-by-step explanation:

Taking two points, (0,0) and (1,5), find the slope using [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]. Plugging the two points in, we have [tex]\frac{5-0}{1-0}=5[/tex] as the slope.

Answer:

Slope = 5

Step-by-step explanation:

We will use 2 points on the line.

(1 , 5) and (2 , 10)

formula for slope = y2 - y1/x2 - x1

10 - 5/2 - 1

= 5/1

= 5

The slope is 5.

Answer:

Raquel has gross pay of $732 and federal tax withholdings of $62. Determine Raquel’s net pay if she has the additional items withheld: Social Security tax that is 6. 2% of her gross pay Medicare tax that is 1. 45% of her gross pay state tax that is 21% of her federal tax a. $600. 99 b. $610. 54 c. $641. 83 d. $662. 99.

Step-by-step explanation:

hello ur intro

Answer:

56 words per minute

Step-by-step explanation:

1400÷25=56

Answer:

56 wpm

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

So if we look at the information that we already know, Layla's reading to months ratio is, 6:2. But to find out the equation we want to find out how many books she reads in ONE month instead of two.

Divide 2/2, and for ratios if you divide one side you have to do the same thing to the other side, so we get, 3:1. Where Layla reads 3 books per 1 month.

Therefore the answer is C.

If we wanted to double check our answer we could substitute our information back in:

6=3×2

6=6

Since the equations equal each other, we know we got it correct.

Answer:

1a. 58/99

1b. 53/90

1c. 29/50

Step-by-step explanation:

let's start with the easiest one

1.(c)

0.58 = 58/100 = 29/50

that is the simplest possible form, as 29 is a prime number and not a factor of 50.

1.(a)

0.585858585858... = 58×0.0101010101010101...

now, we know that 1/"double digit" (like 1/22) mostly produces a repeating pattern with a period length of 2 after the decimal point.

and we find

1/99 = 0.01010101010101...

so, our solution is

58 × 1/99 = 58/99

that is the simplest possible form, as 58 and 99 do not share any factors.

1.(b)

0.5888888888888... = 0.5 + 0.0888888888888... =

= 0.5 + 8×0.01111111111111... = 0.5 + 8×1/10 × 0.1111111111...

we know how to create 0.11111111111... :

1/9 = 0.111111111111111...

so, our solution is

0.5 + 8 × 1/10 × 1/9 = 0.5 + 8/90 = 5/10 + 8/90 =

= 45/90 + 8/90 = 53/90

this is the simplest possible form, as 53 is already a prime number and not a factor of 90.

Area of trapezium= 1/2 × (a+b) × h

= 1/2 × (12 + 8) × 8

= 1/2 × 20 × 8

= 10 × 8

= 80 cm^3

Hope it helps you

[tex]\textit{logarithm of factors} \\\\ \log_a(xy)\implies \log_a(x)+\log_a(y) \\\\[-0.35em] ~\dotfill\\\\ \log_8(9x)\implies \log_8(9)+\log_8(x)[/tex]

Answer:

36 + 49 + 64 = 149

6^+7^2+8^2

Hope This Helps!!!

Answer:

See below.

Step-by-step explanation:

4*-3

A) -12

C) 2*-6

-hope it helps

The expressions that are equivalent to 4 × -3 are A) -12 and C) 2 × -6.

Algebraic expressions are mathematical statements with a minimum of two terms containing variables or numbers.

Option A is a straightforward multiplication of 4 and -3, which gives -12.

Option C (2 × -6) is equal to -12.

Option B can be simplified as follows: (-4) - (-4) · (-4) = (-4) - 16 = -20.

Therefore, option B is not equivalent to 4 × -3.

Option D is equal to 1/64.

Option E is equal to 1.

Option F is equal to 2, and option G is equal to 12.

Options B, D, E, F, and G are not equivalent to 4 × -3.

Learn more about the expression here :

brainly.com/question/21751419

#SPJ2

Answer:

Monday: 25

Tuesday: 121

Wednesday: 15

Step-by-step explanation:

Monday: square numbers

[tex] {1}^{2} = 1 [/tex]

[tex]2 {}^{2} = 4[/tex]

[tex] {3}^{2} = 9[/tex]

[tex] {4}^{2} = 16[/tex]

[tex] {5 }^{2} = 25[/tex]

[tex] {6}^{2} = 36[/tex]

Tuesday: add a power of 3

[tex] {3}^{1 } = 3[/tex]

[tex] {3}^{2} = 9[/tex]

[tex] {3}^{3} = 27 [/tex]

[tex] {3}^{4} = 81[/tex]

1+3=4, 4+9=13, 13+27=40, 40+81=121

Wednesday: one less than a power of 2

[tex] {2}^{1} - 1 = 2 - 1 = 1[/tex]

[tex] {2}^{2} - 1 = 4 - 1 = 3[/tex]

[tex] {2}^{3} - 1 = 8 - 1 = 7[/tex]

[tex] {2}^{4} - 1 = 16 - 1 = 15[/tex]

[tex] {2}^{5} - 1 = 32 - 1 = 31[/tex]

[tex] {2}^{6} - 1 = 64 - 1 = 63[/tex]

Step-by-step explanation:

[tex]\implies \: {6x}^{2} + 19x + 3 \\ \implies {6x}^{2} + (18 + 1)x + 3 \\ \implies {6x}^{2} + 18x + x + 3 \\ \implies6x(x + 3) + 1(x + 3) \\ \implies(x + 3)(6x + 1)[/tex]

Answer:

Step-by-step explanation:

m ∠ 1 = 42 °

m ∠ 2 = m ∠ 4 = m ∠ 9 = m ∠ 12 = ( 180° - 62° - 42° ) = 76 °

m ∠ 3 = m ∠ 6 = m ∠ 7 = 62 °

m ∠ 5 = m ∠ 8 = ( 180° - 62° ) = 118 °

m ∠ 10 = m ∠ 11 = ( 180° - 76° ) = 104 °

The management function being performed by Nancy according to the description is; Scheduling/Planning

Management functions simply is a collection of the five broad activities that managers perform in a bid to achieve organizational goals which includes:

Read more on management functions;

https://brainly.com/question/17083312

(i) Pairs of neighboring angles are supplementary and opposite angles have the same measure.

(ii) The two angles formed by a line coming out of another line are supplementary.

(i) When two straight lines pass through each other, then two pairs of opposite angles are constructed. A pair with angles of [tex](3\cdot x + 52)^{\circ}[/tex] and another pair with angles of [tex](2\cdot x + 2)^{\circ}[/tex], each pair of angles with different measures are supplementary.[tex]\blacksquare[/tex]

(ii) When a straight line comes out of another straight line, from a point distinct to any endpoint of the former, then we construct two supplementary angles. The largest angle has a value of [tex](10\cdot x + 20)^{\circ}[/tex], whereas the smaller one has a value of [tex](6\cdot x + 8)^{\circ}[/tex]. [tex]\blacksquare[/tex]

To learn more on angles, we kindly invite to check this verified question:  https://brainly.com/question/15767203

The equation 60.1 = 7.2x + 2.5 can be used to find the number of oranges in the bag is 8.

It is a system of an equation in which the highest power of the variable is always 1. A one-dimension figure that has no width. It is a combination of infinite points side by side.

Given

A grocer sells oranges in bags. Each empty bag weighs 2.5 ounces and each orange weighs 7.2 ounces.

Khalil buys a bag of oranges that weighs 60.1 ounces.

Let x be the number of oranges.

Then the equation will be

y = 7.2x + 2.5

For y = 60.1, the value of x is

[tex]\rm 60.1 = 7.2x + 2.5\\[/tex]

On simplifying, we have

x = 8

Thus, the number of oranges in the bag is 8.

More about the linear system link is given below.

https://brainly.com/question/20379472

Answer:

120 history textbooks

360 physics textbooks

Step-by-step explanation:

Physics textbooks = 3 times the amount of history textbooks

History textbooks = x

Physics textbooks = 3x

480 = x + 3x

= 4x

480/4 = x

x = 120

120 history books sold

480-120 = 360

360 physics textbooks sold

btw sorry if I didn't give enough working or help you understand it I'm not great at this kind of thing

Answer:

We need to see the graph can u show me the graph

Step-by-step explanation:

?

Answer:

20/24

Step-by-step explanation: Hope this helps

Answer:

20%?

Step-by-step explanation:

I think im wrong but what u can do is u can convert the fraction into a decimal then get ur answer from there.