8. According to the scores on the last math test, 80% or 20. of the students in the class received an A. Find the number of students in the entire class.​

Answers

Answer 1

Answer:

24

Step-by-step explanation:

20+20% is equal to 24.


Related Questions

i want to know how to solve this cross number puzzle i know the answers but where do i put them​

Answers

across

1) 10

2) 25

5)9

6)12

The solution set of |4x - 7| = 9 is
{4}
{-1/2, 4}
{}

Answers

Answer:

{4}

Step-by-step explanation:

first move 7 to RHS in addition

then 4 in RHS in division

Answer:

{-1/2,4}

Step-by-step explanation:

Write the equation in point-slope form of the line that passes through the given point and has the given slope (4,-7); m= -1/4

Answers

Answer:

y + 7 = -1/4(x - 4)

General Formulas and Concepts:

Algebra I

Point-Slope Form: y - y₁ = m(x - x₁)  

x₁ - x coordinate y₁ - y coordinate m - slope

Step-by-step explanation:

Step 1: Define

Slope m = -1/4

Point (4, -7)

Step 2: Write Function

y + 7 = -1/4(x - 4)

please help! struggling a lot.

Answers

Answer:

x=2<br/>y=1

Step-by-step explanation:

\left\{ \begin{array} { l } { 4 x + y = 9 } \\ { 3 x - 2 y = 4 } \end{array} \right.

4x+y=9,3x-2y=4

4x+y=9

4x=-y+9

x=\frac{1}{4}\left(-y+9\right)

x=-\frac{1}{4}y+\frac{9}{4}

3\left(-\frac{1}{4}y+\frac{9}{4}\right)-2y=4

-\frac{3}{4}y+\frac{27}{4}-2y=4

-\frac{11}{4}y+\frac{27}{4}=4

-\frac{11}{4}y=-\frac{11}{4}

y=1

x=\frac{-1+9}{4}

x=2

x=2,y=1

Factor the following 36k^2-1

Answers

answer

[tex] {36k}^{2} - 1[/tex]

using identity

[tex](a + b)(a - b) = {a}^{2} - {b}^{2} [/tex]

let a=6k and b=1

we get

[tex](6k + 1)(6k - 1)[/tex]

hope you are satisfied

Here are 6 number cards -4, -2, -1, 5,6,8 arrange the cards into 3 pairs with the same total

Answers

Answer: See explanation

Step-by-step explanation:

We are informed that we should arrange -4, -2, -1, 5,6,8 arrange into 3 pairs with the same total. This will be:

= (-4,8), (-2,6), and (-1,5).

Let's check the total for each. This will be:

= (-4,8) = -4+8 = 4

(-2,6) = -2 + 6 = 4

(-1,5) = -1 + 5 = 4

I WILL MARK BRAINIEST
PLEASE HELP ASAP ITS DUE

Answers

Answer:

The star has rotational symmetry of order 5.

Step-by-step explanation:

The star has a rote too all

Which expression is quivalent to this one ?

Answers

Answer:

third option 11

Step-by-step explanation:

Answer:

Second option: 1

Step-by-step explanation:

input it in a calculator, and the answer was 1

Pleaseee help meee....

Answers

Answer:

its 90 bc the angle has a square (tbh I'm just guessing

The third side equals 6.245. Rounded to the nearest tenth it’s 6.2.

1.) Jahmal had a $10,000 loan. He still owes $5,275. He had to pay 15% interest up front on to get
the loan. How much total money has Jahmal already paid on the loan?
A.) $4,725
B.) $6,225
C.) $5,550
D.) $709
I need help and please explain what you did. Thank you!

Answers

Answer:

C or A

Step-by-step explanation:

Use a system of equations to solve the following problem:


I NEED THIS ANSWER ASAP PLEASE

Answers

Answer:

0,7

Step-by-step explanation:

by graphing

plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz helppppppppppppppppppppppppppppppppp

1. Write an equivalent expression in standard form, and collect like terms(Combining like terms)


2. Express the answer from Part A as an equivalent expression in factored form.

Answers

Answer:

4x-10y

Step-by-step explanation:

Look at the pic...

Answer:

4x + 2y

Step-by-step explanation:

1. 4x - 3(x - 2y) + 1/2(6x - 8y)

4x - 3x + 6y + 3x - 4y

4x + 2y

2. 4x - 3(x - 2y) + (1/2)(6x - 8y) =

4x - 3x + 6y  + 3x - 4y =

4x + y(6 - 4) = 4x + 2y = 2(2x + y)

I hope this helps

Solve for x: -2x + 1 = -6

Answers

Answer:

This is a 2-step equation. We will solve it in 2 steps.

[tex]-2x + 1 = -6\\\\-2x = -7\\\\x = \frac{7}{2}[/tex]

The solution for this equation is x = [tex]\frac{7}{2}[/tex].

The volume of a gas V held at a constant temperature in a closed container varies inversely with its pressure P. If the volume of a gas is 1350 cubic centimeters when the pressure is 250 millimeters of mercury​ (mm Hg), find the volume when the pressure is 450mm Hg.

Answers

The his makes no sense to me sorry just trying to get points 250 millimeters is the volume 1350

Write two equivalent expressions to 9x + 27.

Answers

Answer:

3x+6x+27

9x+20+7

Step-by-step explanation:

just expand out the equation

Answer:

3(3x+9)

9(x+3)

Step-by-step explanation:

3(3x+9)= 9x+27

9(x+3)= 9x+27

Sarah and three friends enter a story writing contest. They win the contest and receive a cash
prize. Each person on the team received $21.25. How much money did the team win
altogether
Show work please

Answers

Answer:

85

Step-by-step explanation:

21.25 times 4 (Sarah and 3 friends) equals 85

Don claims that the trianlges are congruent by SAS triangle congruence criterion because a sequence of rigid motions carries \triangle ABC△ABC onto \triangle DEF△DEF. Select all that can be used to support Don's claim.



A -a rotation of 30^o30 clockwise about vertex A, follwed by a translation that carries AB to DE, and a reflection over AC.


B- a rotation of 30^o30 clockwise about vertex A, follwed by a translation that carries AB to DE, and a reflection over AB.


C- a rotation of 90^o90 counterclockwise about vertex A, follwed by a translation that carries AC to DF, and a reflection over AC.


D- a rotation of 90^o90 counterclockwise about vertex A, follwed by a translation that carries AC to DF, and a reflection over AB.

Answers

Answer:

The triangles would match if you chose D

BI checked I hope it helps

Simplify. Your answer should contain only positive exponents

Answers

Answer:

Simplify what though? i would answer u but plz put what im supposed to simplify

Step-by-step explanation:

ybybyh htgfrxxrxrrxrxrxrxrd

PLS HELP ILL GIVE BRAINLEIST !!!!!!

15)Big Bird is making wedding favors for Jack and Jill. He can create 3 vases
every hour. He already had 2 vases in his storage area (7 pts)
a Write an equation to model this situation:
b. Graph Big Bird's vases. Be sure to label the axes appropriately
Watch the scales on the axes!!!
hours
vases
12
10
1
2
3
4
6+
4
2
O
i
3

Answers

Answer:

y=3x+2

Step-by-step explanation:

For a the equation is y=3x+2 because he makes 3 every hour (3x) and he already has 2 (+2).

For the graph you replace x with any number and solve. Plot the point.

Then you do it again but with a different x.

Finally you draw a straight line trough the 2 points.

In a certain Algebra 2 class of 27 students, 18 of them play basketball and 16
of them play baseball. There are 3 students who play neither sport. What is
the probability that a student chosen randomly from the class plays
basketball or baseball?

Answers

Answer:

The probability is 0.89 or 89%

Step-by-step explanation:

Probability

There are n=27 students in a certain Algebra 2 class. 18 out of them play basketball and 16 of them play baseball.

We also know 3 students play neither sport. This leaves 27-3=24 students playing sports.

The probability that a randomly chosen student plays basketball or baseball is:

[tex]\displastyle p=\frac{24}{27}[/tex]

Simplifying:

[tex]\displastyle p=\frac{8}{9}=0.89[/tex]

The probability is 0.89 or 89%

The weight of oranges growing in an orchard is normally distributed with a mean weight of 6.5 oz. and a standard deviation of 1.5 oz. Using the empirical rule, determine what interval would represent weights of the middle 99.7% of all oranges from this orchard.

Answers

Add 3 standard deviations above and below the mean to get the range in which 99.7% of the data in a normal distribution will fall
6.5 + 4.5 = 11
6.5 - 4.5 = 2
So 2 to 11 ounces would be the interval

Answer:

(3.5, 9.5)

Step-by-step explanation:

μ=6.5

σ=1

I’m have trouble with this one

Answers

Answer:

y/cost=m/months/× x/cost per month+ b/ initial fee

Which of the following functions best describes this graph?
A. y = (x-1)(x+3)
B. y =x^2-x+5
C. y = (x+1)(x+1)
D. y=x^2-5x+6​

Answers

answer is C 【y=(x-1)(x+1)】

Juan wants to earn more than $52 trimming trees. He charges $8 per hour and pays $4 in equipment fees. What are the possible numbers of hours Juan could trim trees? Use t for the number of hours. Write your answer as an inequality solved for t .​

Answers

Answer:

He has to work for more than 8 hours.

Step-by-step explanation:

8t + 4 > 52

8t + 4 - 4 > 52 - 4

8t > 48

8t/8 > 48/8

t > 8

the price of a calculater has decreased from $200 to $150. What is the percentage of decrease?

Answers

Answer:

25%

Step-by-step explanation:

200-150=50

50/200=0.25

have a nice day!

Solve for b. -9/3 + b = -1 b = ___?

Answers

Answer:

2

Step-by-step explanation:

its 2 have a good day (:

Del contenido total de una lata de verduras de 220g,la masa drenada es de 110g. ¡Que fraccion representa la masa drenada del contenido total? ¿Que fraccion decimal corresponde a un 1/4? ¿Que tanto por ciento se representa con 1/4 o .25? ¿Que tanto por ciento del contenido total representa la masa drenada?

Answers

Explicación paso a paso:

Pregunta 1

El contenido total de verduras = 220 g

La masa drenada es de 110 g.

¿Qué fracción representa la masa drenada del contenido total?

= 110/220

= 22/11

La fracción es 11/22

Pregunta 2

¿Qué fracción decimal corresponde a 1/4?

la fracción decimal que corresponde a 1/4 es 0,25

Pregunta 3

¿Cuánto porcentaje está representado por 1/4 o 0,25?

= 0,25 * 100

= 25%

Pregunta 4

¿Cuánto porcentaje del contenido total representa la masa drenada?

= 110/220 * 100

= 11/22 * 100

= 0,5 * 100

= 50%

Write and solve an equation to find x and also find the measure of angle EHF.

Answers

I hope this is helpful

Draw the reflection of the figure over the line shown .

Answers

Just move it as many squares until it gets over the line

Factor an 8 from the expression: 32 + 40b

Answers

32/8 = 4
40b/8 = 5b
Solution: 8(4 + 5b)
Other Questions
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