In the reaction of hydrogen with iodine

Answer:

the unit rate is 1/10.

Step-by-step explanation:

4/40 divided by 4 equals 1/10

unit rate is 0.1 tickets per dollar

Answer:

24.24%

(Round down to 24% if needed)

Step-by-step explanation:

33 - 25 = 8 failed

Find Percentage

8/33 = x/100

Cross multiply

8(100) = 33(x)

800 = 33x

x = 24.24%

Hope this helps :)

Answer:

75%

Step-by-step explanation:

because...

you divide 33 by 25 and you get 0.75757575757

and you just roud that to about 75%

To determine the students selected to go to the board, start with the fourth student and then select every ninth student thereafter. Thus, the students chosen are the 4th, 13th, 22nd, and 31st students who enter the classroom.

The question involves determining which students a professor will select to go to the board based on a specific selection process. The professor decides to randomly select the fourth student who enters the classroom and every ninth student after that. To find out who these students are, we begin by identifying the fourth student initially. After the fourth student, every ninth student subsequently means we add 9 to the initial student's number to find the next student.

The fourth student who enters

The fourth student + 9 = the 13th student

The 13th student + 9 = the 22nd student

The 22nd student + 9 = the 31st student

Therefore, the students selected to go to the board are the 4th, 13th, 22nd, and 31st students who enter the classroom.

The students who will be going to the board are students 4, 9, 18, and 27.

Let’s determine the students who will be going to the board based on the professor’s selection criteria:

1. The fourth student who enters the classroom.

2. Every ninth student after that.

Let’s find the student numbers:

1. The fourth student corresponds to the 4th position.

2. The ninth student corresponds to the 9th position.

3. The 18th student corresponds to the ninth student after that (since 9 + 9 = 18).

4. The 27th student corresponds to the ninth student after the 18th student (since 18 + 9 = 27).

Therefore, the students who will be going to the board are students 4, 9, 18, and 27.

Answer:

20

Step-by-step explanation:

10 + 10 = 20

Hope this helps :)

Emily's figurine is 17 inches taller than Chen's figurine

Step-by-step explanation:

Emily and Chen built clay figurines for art class

We need to find how much taller is Emily's figurine than Chen's in inches

To solve this problem we must to change the heights of the two figurines to inch

∵ Emily's figurine is 5' 1" tall ⇒ 5 feet and 1 inch

∵ 1 foot = 12 inches

∴ The height of Emily's figurine = 5(12) + 1

∴ The height of Emily's figurine = 60 + 1

∴ The height of Emily's figurine = 61 inches

∵ Chen's figurine is 3' 8" tall ⇒ 3 feet and 8 inches

∵ 1 foot = 12 inches

∴ The height of Chen's figurine = 3(12) + 8

∴ The height of Chen's figurine = 36 + 8

∴ The height of Chen's figurine = 44 inches

To find how much taller is Emily's figurine than Chen's in inches subtract their heights

∵ The difference between the two figurine = 61 - 44

∴ The difference between the two figurine = 17 inches

∴ Emily's figurine is 17 inches taller than Chen's figurine

Emily's figurine is 17 inches taller than Chen's figurine

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Answer:

2.5 or 2 1/2 in

Step-by-step explanation:

Area = width x length

width = area / length = 11.25 / 4.5 = 2.5

653,000 I think

since the thousands place has a 3, the first part would stay the same, 000 is added

Hope I helped :)

Answer:

653,228

Step-by-step explanation:

_________

l 700,000   l

l_________l

cause 5 is over 5 and 5 +1 to 6 +7 and all other numbers will become 0's so its 700,000

In order to solve the problem '2 times what equals 120', you need to find the value of X in the equation 2*X = 120. The answer is 60, as 2 times 60 equals 120.

In Mathematics, the problem "2 times what equals 120" is an example of a basic equation you can solve. When you're trying to find the number that 2 times, or multiplied by 2, equals 120, you're looking for the value of the unknown variable in the equation 2*X = 120. To solve this, you would divide both sides of the equation by 2. Thus, X equals 60 because 2 times 60 equals 120.

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To find the number that when multiplied by 2 equals 120, you simply divide 120 by 2, which results in 60.

To find this number, we divide 120 by 2. Therefore, the equation is 2 x ? = 120.

Dividing 120 by 2 gives us:

120 ÷ 2 = 60.

So, 2 times 60 equals 120.

The markup percentage is 45.14%

Step-by-step explanation:

The given is:

We need to find the markup percentage

The markup percentage = [tex]\frac{New-Old}{old}[/tex] × 100%

∵ The selling price of a box of crackers is $1.75

∴ Old = 1.75

∵ You mark the crackers up to $2.54

∴ New = 2.54

- Substitute these values in the rule above

∵ The markup percentage = [tex]\frac{2.54-1.75}{1.75}[/tex] × 100%

∴ The markup percentage = [tex]\frac{0.79}{1.75}[/tex] × 100%

∴ The markup percentage = 0.4514 × 100%

∴ The markup percentage = 45.14%

The markup percentage is 45.14%

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Answer:

The markup percentage is 45%.

Step-by-step explanation:

Answer:

-1

Step-by-step explanation:

add the 3 numbers together and then you get 10 so then you divide -10 by 10 and you -1

Answer:

g=5/23

Step-by-step explanation:

To simplify the expression 2(x + 7) - 18x + 4/5, you distribute the 2 across (x + 7), then combine like terms to get the equivalent expression, which is -16x + 14 + 4/5.

The expression that is equivalent to 2(x + 7) - 18x + \(\frac{4}{5}\) can be simplified through the distributive property and combining like terms. First, distribute the 2 into the parentheses:

2(x) + 2(7) - 18x + \(\frac{4}{5}\)
= 2x + 14 - 18x + \(\frac{4}{5}\).

Next, combine like terms by subtracting 18x from 2x:
(2x - 18x) + 14 + \(\frac{4}{5}\)
= -16x + 14 + \(\frac{4}{5}\).

So the equivalent expression is -16x + 14 + \(\frac{4}{5}\).

Answer:

The temperature at noon was 37 °F.

Step-by-step explanation:

Given:

Temperature at midnight is  34 °F.

Reduction in temperature by 6:00 a.m. is 8°. So, temperature after reduction is given as the difference in temperature at midnight and morning.

Therefore, temperature by 6:00 a.m. in the morning is given as:

Reduced temperature = Midnight temperature - Reduction in temperature.

Reduced temperature = 34 °F - 8 °F = 26 °F.

Now, by noon, the temperature is increased by 11 °F. Therefore, the final temperature by noon is addition of 11 degree to the temperature that was in the morning. Therefore,

Temperature at noon = Temperature in morning + Increase in temperature.

Temperature at noon = 26 °F + 11 °F = 37 °F.

So, the temperature at noon is a 3 °F increase to the temperature at midnight and is equal to 37 °F.

37 boiiiiiiiiiiiiiiiii

Answer:

1 to 5

211 to 1500

11 to 300

Step-by-step explanation:

1.8 to 9 = 18/90 = 1(18)/5(18) = 1/5 = 1 to 5

2.11 to 15 = 211/1500 = 211 to 1500

3.30 to 90 = 330/9000 = 110/3000 = 11/300 = 11 to 300

Answer:

-2/8

Step-by-step explanation:

The rule of additive inverse stays the same with fractions

Answer:

-2/8

Step-by-step explanation:

Final answer:

To find the product of the given expression (7x²)(2x + 5)(x² - 4x-9), we can use the distributive property to multiply each term.

Explanation:

To find the product of the given expression (7x²)(2x + 5)(x² - 4x-9), we can use the distributive property to multiply each term.

First, multiply (2x + 5) with (x² - 4x-9) using the distributive property.
(2x + 5)(x² - 4x-9) = 2x*(x² - 4x-9) + 5*(x² - 4x-9)
= 2x³ - 8x² - 18x + 5x² - 20x-45
= 2x³ - 3x² - 38x - 45

Answer:

Alex baked 9 cherry pies

Step-by-step explanation:

apple : blueberry : cherry = 1:4:3

apple + blueberry + cherry = 24

1 part: 24 / ( 1+4+3) = 24 / 8 = 3

** Cherry has 3 parts: 3 x 3 = 9

check: apple = 3 x 1 = 3

blueberry: 3 x 4 = 12

12 + 3 + 9 = 24

Answer:

9

Step-by-step explanation:

Aops Problem

Answer:

x=3/2, y=10. (3/2, 10).

Step-by-step explanation:

2x-y=-7

4x-y=-4

--------------

-2(2x-y)=-2(-7)

4x-y=-4

---------------------

-4x+2y=14

4x-y=-4

-----------------

y=10

2x-10=-7

2x=-7+10

2x=3

x=3/2

Answer:

Speed of Vendelin is 60 kilometre per hour.

Step-by-step explanation:

Given:

The Distance two bus stops = [tex]\frac{3}{8}[/tex]

Speed of the bus =  60 km/h

To Find:

The Speed of  vendelin = ?

Solution:

Let the speed bof vendelin be x.  the it is stated that

" If Vendelin runs from home, he will be at the bus stop at the same time as bus."

So

Time Taken by the bus

=>[tex]\frac{ \text{ distance between the bus stop}}{\text{ speed of the bus}}[/tex]

=>[tex]\frac{\frac{3}{8}}{60}[/tex]

=>[tex]\frac{\frac{3}{8}}{\frac{1}{60}}[/tex]

=>[tex]\frac{3}{480}[/tex]------------------------------(1)

Time Taken by  Vendelin

=>[tex]\frac{ \text{ distance between the bus stop}}{\text{ speed of Vendelin }}[/tex]

=>[tex]\frac{\frac{3}{8}}{x}[/tex]

=>[tex]\frac{3}{8x}[/tex]----------------------------------(2)

Equating (1) and (2) we get

[tex]\frac{3}{480}[/tex] =  [tex]\frac{3}{8x}[/tex]

[tex]3 \times 8x = 3 \times 480[/tex]

[tex]3 \times 8x = 1440[/tex]

[tex] 8x =\frac{1440}{3}[/tex]

[tex] 8x = 480[/tex]

[tex] x =\frac{480}{8}[/tex]

x = 60

Answer:

6.164414

You can figure this out because 6.164414x6.144414 is 38.

Step-by-step explanation:

If there's supposed to be a pic its not popping up...

Answer:

1320

Step-by-step explanation:

Write a proportion.

22 / 600 = x / 36,000

Cross multiply.

600x = 22 × 36,000

Solve for x.

x = 1320

Answer:

Step-by-step explanation:

1320

Answer:

308 cm³

Step-by-step explanation:

The volume (V) of a rectangular prism ( cuboid ) is

V = lbh ( l is the length, b the breadth and h the height )

Here l = 11, b = 7 and h = 4, thus

V = 11 × 7 × 4 = 308 cm³

Answer:

D

Step-by-step explanation:

Try dividing

Answer:

Step-by-step explanation:

x = 60 + 60 = 120

Exterior angle equals the sum of opposite interior angles.

1. Use the exterior angle theorem that states that an exterior angle in a triangle is equal to its two remote interior angles.

x+46=84

x=38 degrees

2. There are two parallel lines cut by transversal. We can see a same side interior relationship.

3x-5+90+2x=180

5x=95

x=19 degrees

3. Use exterior angle theorem again.

90+34=x+72

x=52 degrees

The volume of the right rectangle prism is  V = 4.252 m³.

The correct option is C.

In three-dimensional space, a prism is a polyhedron where two ends are similar.

Given:

The dimensions of a right rectangle prism are 3/4 m, 1.89 m, and 3 m.

The volume of the right rectangle prism use the formula V = l x w x h.

That means,

V = 3/4 x 1.89 x 3

V = 4.252 m³

Therefore, V = 4.252 m³.

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The Question is Incomplete with the Figure,So the complete Question with Diagram is below.  

Answer:

The Proof is given Below.

Step-by-step explanation:

Given:

∠CXY ≅ ∠BXY  

∠CAX ≅ ∠BAX

AC≅ AB

To Prove:

∠XCY ≅ ∠XBY

Proof:

In  Δ AXC and Δ AXB

STATEMENT                                             REASONS

1. AC ≅ AB                                          1. Given

2. ∠CAX ≅ ∠BAX                              2. Given

3. AX ≅ AX                                        3. Reflexive Property

4. ΔAXC  ≅ ΔAXB                             4. Side-Angle-Side congruence test

5. ∴ CX ≅ BX                                     5.corresponding parts of congruent triangles........( 1 )

Now ,

In  Δ XYC and Δ XYB

STATEMENT                                             REASONS

1. CX ≅ BX                                          1. Proved above from ( 1 )

2. ∠CXY ≅ ∠BXY                              2. Given

3. XY ≅ XY                                        3. Reflexive Property

4. ΔAXC  ≅ ΔAXB                             4. Side-Angle-Side congruence test

5. ∴ ∠XCY ≅ ∠XBY                          5. Corresponding parts of congruent triangles...........Proved

Answer:

See attached image

Step-by-step explanation:

Hope this helps!

Answer:

If X is the starting weight, total pounds lost in three months is

(0.132X + 2.37)lbs

Step-by-step explanation:

Let the starting weight be X(lb)

Let the target ending weight be Y(lb)

Since Rollie ended with 3(lbs) above goal weight, final weight is Y+3(lb)

Each month, Rollie lost 1/3 of the difference between current weight and goal weight, hence

In the first month, Rollie lost 1/3 of (X - Y)

but since Rollie ended up with 3lbs above target ending weight, the actual weight loss is 1/3(X - Y) + 3

Hence  by the end of the first month, Rollie's new weight is X - (1/3(X - Y)) + 3

which is equal to

X - 1/3X + 1/3Y - 3.

= 2/3X + 1/3Y - 3

By the second month, Rollie's starting weight is 2/3X + 1/3Y - 3(lb)

while her target ending weight still remains (Y)

but the actual ending weight is Y + 3

hence in the second month, Rollie lost 1/3(2/3X + 1/3Y - 3 - Y) + 3

= 2/9X + 1/9Y - 1 - 1/3Y + 3

=  2/9X - 2/9Y + 2

hence by the end of the second month, Rollie's new weight is

(2/3X + 1/3Y - 3) - (2/9X - 2/9Y + 2)

= 2/3X - 2/9X + 1/3Y + 2/9Y - 3 - 2

= 4/9X + 5/9Y - 5  

By the third month, Rollie's starting weight is 4/9X + 5/9Y - 5(lb)

while her target ending weight still remains (Y)

but the actual ending weight is Y + 3

hence in the third month, Rollie lost 1/3(4/9X + 5/9Y - 5 - Y) + 3

= 4/27X + 5/27Y - 5/3 - 1/3Y + 3

= 4/27X - 4/27Y + 4/3 ------------------------- eqn (*)

hence by the end of the third month, Rollie's new weight is

(4/9X + 5/9Y - 5) - (4/27X - 4/27Y + 4/3)

= 4/9X - 4/27X + 5/9Y + 4/27Y - 5 - 4/3

= 8/27X - 19/27Y - 19/3

Hence in three months, Rollie's new weight is 8/27X - 19/27Y - 19/3

To ascertain how much weight Rollie lost in three months, there is need to equate the estimated ending weight to the final weight (Y + 3)

Therefore:

8/27X - 19/27Y - 19/3 = Y + 3

this implies that

8/27X - 19/27Y - Y - 19/3 - 3 = 0

8/27X - 36/27Y -28/3 = 0

Since Y is the target ending weight

the ending weight is generated by solving the equation with respect to Y

36/27Y = 8/27X - 28/3

multiply through by 27/36

Y = 2/9X - 7

Hence weight lost in three months is generated by substituting for Y = 2/9X - 7  in eqn (*)

Since eqn * is 4/27X - 4/27Y + 4/3

the lbs lost in three months is

4/27X - 4/27(2/9X - 7 ) + 4/3

= 4/27X - 8/243X + 28/27 + 4/3

= (32/243)X + 64/27

which in decimal is

(0.132X + 2.37)lbs

The total pounds of weight that will be lost in three months will be (0.132x + 2.37)lbs.

The starting weight is illustrated by x. The target ending weight is illustrated by y.

In the first month, the weight list by Rollie will be 1/3 × (x - y) and her new weight will be:

= 2/3x + 1/3y - 3

In the second month, the starting weight will be 2/3x + 1/3y - 3. The weight lost by the end of the second month will be:

= 1/3 × (2/3x + 1/3y - 3) + 3

= 2/9x - 2/9y + 2

The new weight will be:

= (2/3x + 1/3y - 3) - (2/9x - 2/9y + 2)

= 4/9x + 5/9y - 5

In conclusion, the weight lost in three months will be:

= 4/27x - 4/27(2/9x - 7) + 4/3

= 4/27x - 8/243x + 28/27 + 4/3

= 32/343x + 64/27

= 0.132x + 2.37

In conclusion, the total pounds of weight that will be lost in three months will be (0.132x + 2.37)lbs.

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Answer:

The area of the carpet which is square in shape is  81 [tex]inches^2[/tex]

Step-by-step explanation:

Given:

side of the carpet square  = 9 inches

To Find:

area of the carpet square = ?

Solution:

The area of the carpet =  area of the square

we know that the area of the square  is

=> side X side

Substituting the side of the square, we get

=> 9 X 9

=> 81 [tex]inches^2[/tex]

Seth's spending on jam can be represented by two expressions: 0.80*J*(b + s) and 4*(b + s). The calculations involve finding the total cost without the discount, finding the amount of the discount, and then subtracting the discount from the total cost.

Let's denote the price of one jar of jam as J, which is $5. The number of jars of blackberry jam that Seth bought is denoted as b, and the number of jars of strawberry jam as s. Without the discount, the total cost for all the jam he bought would be J*(b + s). Given that Ms. Wells offers a 20% discount for purchasing at least two jars of jam, Seth's actual spending would be

So, Seth's spending is represented by the expression 0.80*J*(b + s) or, substituting J = $5, by 4*(b + s).

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