There are 17 female students in a chemistry class. If the class is 54.84% female, how
students are in the chemistry class?
many total students are in the chemistry class?

Answers

Answer 1

Answer:

there are 14 boys and 31 total students in chemistry class.

explanation:

total number of students: 100%

total number of students:

[tex]\frac{17}{54.84} * 100[/tex]31 students total.

Boys in the class:

100% - 54.84%45.16%

Boys total:

31 * 45.16%14 boy students.
Answer 2

There are 14 boys and 31 total students in the chemistry class.

It is given that there are 17 female students which is also equal to 54.84 % of total students in chemistry class.

We have to find the total number of students and number of boys in chemistry class.

What will be the 50 % of 100 ?

The value will be 50.

Let's assume that total number of students be x.

∵ Number of female students ;

⇒  54.84 % of x  = 17

 ⇒ (54.84/100) × x = 17

⇒ x = 1700 ÷ 54.84

x = 31 (approximate)

So, the total number of students in chemistry class are 31.

&

Number of boys = 31 - 17 = 14

Thus , there are 14 boys and 31 total students in the chemistry class.

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Related Questions

Complete the statement below.
The
property can be used to remove the parentheses in the expression 1.7(x + 9).

Answers

Answer:

I believe it is the "square root" sign

Answer:

distributive

Step-by-step explanation:

A circle is shown 10 cm. What is the circumference of the circle, to the nearest tenth of a centimeter

Answers

Answer:

31.42cm

Step-by-step explanation:

Answer. We know that C = πd. Since the diameter is 10cm, we know that C = π x 10cm = 31.42cm (to 2 decimal places).

On average the number of drum sets sold in Michigan each year is 101,968, which is eight times the average number of drum sets sold each year in South Dakota. How many drum sets, on average, are sold each year in South Dakota?

Answers

Answer:

12,746

Step-by-step explanation:

To find this answer, we need to divide by 8

Since we know that South Dakota sells 8X less than Michigan, we have to use the opposite sign (which in this case is division.)

Now, we use the equation 101,968/8 which gets us an answer of…

12,746!

Thi has taken four math tests. She scored 96 on her
first test. For each of the next three tests, the table shows the
change in score from the previous test. Find the mean of
the changes.

Answers

Answer:

84.5

Step-by-step explanation:

1: 96 - 13 to get difference = 83

2: 83 - 5 = 78

3: 78 + 3 = 81

4: (83 + 78 + 81 + 93) / 4 = 84.5

Gasoline costs $3.25 per gallon How much does it cost to drive
the 838 miles to Seattle if your car gets 27 miles per galona

Answers

Answer:

$100.87 (to the nearest cent)

Step-by-step explanation:

1 gallon = 27 miles

⇒ number of gallons needed to drive 838 miles = 838 ÷ 27 = 31.0370370... gallons

1 gallon = $3.25

⇒ total cost to drive 838 miles = 3.25 x 838/27 = $100.87 (to the nearest cent)

Help please.


Which statements apply to the expression 3/5 ³


Answers

Answer:

A is true. (3/5)³ has base 3/5

C is true. (3/5)³ has exponent 3.

D is true. (3/5)³ = 3/5 × 3/5 × 3/5.

G is true. (3/5)³ = 3/5 × 3/5 × 3/5 = 27/125


In 2011 online sales were $194 billion, and in 2014 they were $251 billion.
a) Find a linear function that models these data, where is the sales in billions of dollars and x is the year. Write S(x) in slope-intercept form.
b) Interpret the slope of the graph of S.
c) Determine when online sales were $232 billion.

Answers

Answer:

a)

Step-by-step explanation:

find a linear function that models these data.

I have a problem with this question. Please help, thank you.

Answers

Answer:

x= 7/12

Step-by-step explanation:

3/4- 1/6

18/24- 4/24

14/24

7/12

You have $575 to spend on clothes for the school year. You want to by 8 pairs of pants that cost $352.45 including tax and hoodies that will have a 8.7 % sales tax. What is the inequality that represents the amount of money you have to spend?

Answers

Answer:

352.45 + 1.087x ≤ 575

Step-by-step explanation:

The most you can spend is $575, so the total you spend must be ≤ 575.

You already have a total for the pants of $352.45.

352.45 + price of hoodies ≤ 575

Let x = total price of the hoodies before tax.

The price of the hoodies with tax is

x + 8.7% of x = x + 0.087x = 1.087x

The inequality is

352.45 + 1.087x ≤ 575

Gerald fi nds that it takes 30 ml of a
standard solution to neutralize 12 ml of
a solution of unknown concentration.
If he starts with 20 ml of the unknown
solution, it takes 50 ml of standard
solution to neutralize it. Assuming a linear
relationship exists between the amount
of unknown solution and the amount of
standard solution required to neutralize
it, how much unknown solution can
be neutralized with 175 ml of standard solution?

Answers

167+57 written in base ten method

A text message plan costs ​$2 per month plus ​$0.36 per text. Find the monthly cost for x text messages.

Answers

Answer:

2 + 0.36x

Step-by-step explanation:

0.36x = Total cost for x text messages

2 = Cost per month (no matter how many messages you send)

The answer is 2 + 0.36x

Hope this helps :)

Have a nice day!

PLEASE HELP!!!

Find the value of x.
78°
(12x + 18)"

Answers

X = 5

Step-by-step explanation:

78 = 12x+18

-18 -18

60 = 12x

5 = x

please help me with this math problem (:

Answers

Answer:

[tex] {x}^{2} + ( \frac{ \sqrt{3} }{2} ) {}^{2} = 1 \\ {x}^{2} = \frac{1}{4} \\ x = \frac{1}{2} \: \: or( \frac{1}{2} ) \\ x > 0 \\ therefore \: \: x = \frac{1}{2} [/tex]

Answer:

[tex]x=-\frac{1}{2}[/tex]

Step-by-step explanation:

equation of a circle:  [tex](x - h)^2+(y-k)^2=r^2[/tex]

where (h, k) = center and r = radius

From inspection, we can see that the center of the circle = (0, 0)

and the radius = 1

[tex]\implies (x - 0)^2+(y-0)^2=1^2[/tex]

[tex]\implies x^2+y^2=1[/tex]

Substitute [tex]y=\frac{\sqrt{3}}{2}[/tex]  into  [tex]x^2+y^2=1[/tex]  and solve for [tex]x[/tex]:

[tex]\implies x^2+(\frac{\sqrt{3}}{2})^2=1[/tex]

[tex]\implies x^2+\frac{3}{4}=1[/tex]

[tex]\implies x^2=\frac{1}{4}[/tex]

[tex]\implies x=\pm \sqrt{\frac{1}{4}}[/tex]

[tex]\implies x=\pm\frac{1}{2}[/tex]

As point P is in quadrant 2, [tex]x[/tex] is negative, so [tex]x=-\frac{1}{2}[/tex]

calculate the interest if R300 is invested for 3years at 5% per annum compound interest.​

Answers

Answer:

SIMPLE INTEREST=PRT/100

P=300

R=5%

T=3

SI=300×5×3/100

SI=3×5×3

SI=45

Answer:

Compound Interest

Principal(P) = R300 rate( r )=5% n=5 years

Total amount

= P(1+r/100)^n

= 300(1+5/100)^3

=R347. 2875

Interest

= Total amount - Principal amount

= 347.2875 - 300

= R47.2875

= R47.30( rounded up to 2

decimal places)

A traveller arrived at 17: 25. The journey took 5 hours and 50 minutes. What time did the traveller start?

Answers

Answer is   11:35

Explanation:

"5 hours 50 minutes" is close to "6 hours"

Let's subtract 6 hours from 17:25

It would drop us to 11:25 since 17-6 = 11.

When we subtracted 6 hours, we subtracted 10 extra minutes that we shouldn't have done. To fix this, add 10 minutes on to go from 11:25 to 11:35

Answer:

The traveler started at 11:35

Step-by-step explanation:

The question already gives you the time that the traveler arrived which is 17:25 and how long it took them to get to the desired location which was 5 hours 50 minutes. So what you need to do is subtract the time the traveler arrived to how long it took to get there.

Equation:

17:25 - 5:50

= 11:35

what are the measures of the angles of a triangle (4x-4) 58 (8x-18)

Answers

1856x^2 - 6032x + 4176 hope it helps if you dont understand ask me anything!

f(x) = x^3 - 5x^2 - x ; find f(3)

Answers

Answer:

Here is your answer

Step-by-step explanation:

Question: f(x)= x³-5x²-x

Answer:. f(3)=3³-5 x 3³ -3

f(3)=27 -135 -3

f(3)=27-138

f(3)=-111

hope this helps you

please mark me brainliest

have a great day :)

Logic question: 9 2 12 3 8 6 ?

Answers

Answer:

6

Step-by-step explanation:

2 + 6 = 8

6 + 6 = 12

3 + 6 = 9

? = 6

The value of the center digit which satisfies the given scenario is 6.

What is a polygon?

A polygon is a closed more than two-sided and can be made up of a finite number of straight line segments and is a type of planar figure in geometry.

Each line of the polygonal circuit's segments are referred to as its edges or sides.

If we observe the given polygon carefully every opposite side has a difference of 6 from the bigger number to the smaller number.

9 - 3 = 6.

8 - 2 = 6.

12 - 6 = 6.

So, In the center of the polygon or a hexagon, the number should be 6.

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8x + 4y = -104
4x + y = -24

Answers

Step-by-step explanation:

there are different ways you could do it using the elimination and substitution method.

hope this helps you!

-s.

Answer:

x = 1 and y = -28

(1,-28)

:- Solution

Elimination & Substitution method

8x + 4y = -104 →multiply by 1

4x + y = - 24 →multiply by 4

8x + 4y = -104

16x + 4y = -96

____________-

-8x = -8

x = -8/-8

[tex] \boxed{x = 1}[/tex]

Substitute x

4x + y = -24

4(1) + y = -24

4 + y = -24

y = -24 - 4

[tex] \boxed{y = - 28}[/tex]

1 kg = 2.2 lb. Dan weighs 170 lb. How many kilograms does he
weigh?
Round answer to the nearest tenth.

Answers

it should be 77.3 kg

A railroad track rises 10 feet for every 400
feet along the track. What is the measure-
ment of the angle the track forms with the
horizontal?

Answers

Answer:

1.43 degrees

Step-by-step explanation:

Think of this as a triangle with an x (horizontal) value of 400 and a y (vertical) value of 10.

Using this train of thought, we can use SOHCAHTOA to find that the tan of some angle (we will use Ф to represent this angle) is equal to the opposite (vertical) value divided by the adjacent (horizontal) value.

As an equation, it looks like this: tan (Ф) = 10/400.

We can use the arctan to find Ф from this equation: arctan (10/400) = Ф

Therefore, Ф is about 1.43 degrees.

Answer this correct forr brainliest answer

Answers

Answer:

D

Step-by-step explanation:

1 1/5 = 6/5. 6/5 x 8/8 = 48/40.

2 1/8 = 17/8. 17/8 x 5 = 85/40

:)

Answer:

D)  [tex]\frac{48}{40} + \frac{85}{40}[/tex]

Step-by-step explanation:

[tex]1 \frac{1}{5} =5*1+1= 5+1 =6[/tex]

[tex]\frac{6}{5}[/tex]

[tex]2\frac{1}{8}=8*2+1=16+1 = 17[/tex]

[tex]\frac{17}{8}[/tex]

5 and 8 have a common multiple of 40

[tex]\frac{6}{5}[/tex] + [tex]\frac{17}{8}[/tex] = [tex]\frac{48}{40} + \frac{85}{40}[/tex]

Hope this helps!

A room that is 5 meters long has an area
of 5x + 10 square meters. What expression
represents the width of the room

Answers

Answer:

Breadth=x+2

Step-by-step explanation:

[tex]Solution,\\\\Length(l)=5m\\\\Area=5x+10m^{2} \\\\Breadth(b)=?\\\\As,\\\\Area=l*b\\\\5x+10=5*b\\\\b=\frac{5x+10}{5}\\\\b=\frac{5x}{5} +\frac{10}{5} \\\\b=x+2[/tex]

PLEASE HELP ITS MATH THANK YOUUUU

Answers

Answer:

Caleb and Devon each bowled for [tex]10[/tex] hours and spent [tex]\$55[/tex].

Step-by-step explanation:

Equations:

Caleb: y = 4x + 15Devon: y = 5x + 5

Where:

x = hours spent bowlingy = the total cost

System of equations:

[tex]\begin{cases}y=4x+15\\y=5x+5\end{cases}[/tex]

Solve for x

Step 1: Substitute the second equation into the first.

[tex]\implies 4x+15=5x+5[/tex]

Step 2: Subtract [tex]5x[/tex] from both sides

[tex]\implies 4x-5x+15=5x-5x+5[/tex]

[tex]\implies -x+15=5[/tex]

Step 3: Subtract [tex]15[/tex] from both sides.

[tex]\implies -x+15-15=5-15[/tex]

[tex]\implies -1x=-10[/tex]

Step 4: Divide both sides by [tex]-1[/tex] .

[tex]\implies \dfrac{-1x}{-1}=\dfrac{-10}{-1}[/tex]

[tex]\implies \boxed{x=10}[/tex]

Solve for y

Step 1: Substitute the found [tex]x[/tex] value into one of the system of equations.

[tex]\implies y=4(10)+15[/tex]

Step 2: Multiply and add.

[tex]\implies y=40+15[/tex]

[tex]\implies \boxed{y=55}[/tex]

Therefore, Caleb and Devon each bowled for 10 hours and spent $55.

help me please help me please help me please help me please help me please help me please help me please help me please help me please help me please help me please help me please help me please help me please help me please help me please help me please

Answers

okay put heat on the left

Step-by-step explanation:

Answer:

The heat is rising is progressive tense.

The steak was cooking nicely is perfect tense.

A day at the mall will be boring is progressive tense.

Ed will have finished by now is perfect tense.

I have weeded the garden is perfect tense.

Eva had read that mystery novel is perfect tense.

Step-by-step explanation:

The progressive tenses are used to indicate an unfinished action.  The perfect tenses describe a finished action, beginning in the past.

find x in the following image

Answers

Answer:

70°

Step-by-step explanation:

As, the sum of the angles in a straight line is 180°.

<E F C + < E F B = 180

70 + < E F B = 180

< E F B = 180 - 70

< E F B = 110°

Also, we know that the sum of the interior angles in a quadrilateral is 360°

So,

< E A B + < A E F + < E F B + < F B A = 360

90 + 90 + 110 + x = 360

290 + x = 360

x = 360 - 290

x = 70°

Hope this helps you :-)

Let me know if you have any other questions :-)

At Best Buy they have a 60" TV that sells for $1250 and is on sale for 15% off. If the sales tax is 6.5%, what is the final cost?

Answers

Answer:

Step-by-step explanation:

The sale price = Initial Cost - 15% of the initial Cost

The sale price = 1250 - 15/100 * 1250

The sale price = 1250 - 187.5

The Sale Price = 1062.5

Now you add on the sales tax

Cost with Sales Tax = 1062.50 + 6.5/100 * 1063

Cost with Sales Tax = 1062.50 + 69.06

Cost with Sales Tax = 1131.56 dollars.

What is the solution to the equation below. square root x - 4 = -2

Answers

Answer:

Answer A is correct

Step-by-step explanation:

√x - 4 = -2

√x = -2 + 4

√x = +2

x = 2²

x = 2 × 2

x = 4

 Hope this helps you :-)

Let me know if you have any other questions :-)

pls help me on this i need to pass it tomorrow​

Answers

Answer:

1 angle in straight line add up to 180

Step-by-step explanation:

for example 2x +3x+3x+7=180 the put like term together trust me

Ordered: 100mg. Available: 0.1g. How many tablets should be given?

Answers

1 tablet

100mg = 0.1g
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