Mathematics College

solve this question ​

Solve This Question

Answers

Answer 1

Answer:

80

Step-by-step explanation:

Initial ratio:

Teachers to students

1 : 15

Ratio after:

Teachers to students

3 : 40

The number of students did not change, so we can make the students of the initial ratio and the students of the ratio after the same.

1 : 15 =  8 : 120

3 : 40 = 9 : 120

120 units = 1200

1 unit = [tex]\frac{1200}{120} =10[/tex]

Initial teachers = 8 units = [tex]8*10=80[/tex]

Answer 2
I think the answer is 80

Related Questions

Please solve screen shot below

Answers

Answer:

G=(T²+N²)/4

Step-by-step explanation:

(√4G-N²)²=T²

4G-N²=T²

4G=T²+N²

G=(T²+N²)/4

if anything is unclear, ask freely.

Which is the better buy? $1.29 for a 16 oz drink, or $1.79 for a 24 oz drink?

A.
$1.29 for 16 oz

B.
$1.79 for 24 oz

C.
Tie! The unit prices are the same.

Answers

Answer:

A.

$1.29 for 16 oz

Step-by-step explanation:

A science geek brews tea at 195195 °F, and observes that the temperature T(t)T(t) of the tea after tt minutes is changing at the rate of T'(t)=−4.5e−0.07tT′(t)=−4.5e−0.07t °F/min. What is the average temperature of the tea during the first 55 minutes after being brewed? Round your answer to the nearest hundredth of a degree.

Answers

Answer:

Step-by-step explanation:

See enclosed file for answer.

what is the solution to the compound inequality -8<2x-4<2

Answers

Answer: {-2,3 }

X>-2
X<3

Answer:

  (-2, 3)

Step-by-step explanation:

You can divide the inequality by 2:

  -4 < x -2 < 1

And add 2.

  -2 < x < 3

Expressed in interval notation, this is (-2, 3).

¿Cuál es la razón en la que está segmentada la línea que une a los puntos A(-2,3) y B(4,-1) si se sabe que el Pr es (0,5/3)?

Answers

Answer:

Entonces la proporción es 1/2

Step-by-step explanation:

Aquí, en esta pregunta, queremos encontrar la razón que divide al segmento AB en la razón (0,5 / 3).

Usamos la fórmula de división interna para esto;

Sea la relación m / n Matemáticamente, la fórmula de división que da lugar a (0,5 / 3) es la siguiente;

(x, y) = mx2 + nx1 / (m + n), my2 + ny1 / (m + n)

En este caso particular;

(x1, y1) = (-2,3)

(x2, y2) = (4, -1)

(x, y) = (0,5 / 3).

Así que hagamos las sustituciones; (0,5 / 3) = m (4) + n (-2) / (m + n), m (-1) + n (3) / (m + n)

(0,5 / 3) = (4m -2n) / (m + n), (-m + 3n) / m + n.

Por tanto, equiparemos términos;

4m-2n / (m + n) = 0

4m -2n = 0

4m = 2n

n = 4 m / 2

n = 2 millones •••••••• (i)

(3n -m) / (m + n) = 5/3

3 (3n -m) = 5 (m + n)

9n - 3m = 5m + 5n

9n -5n = 3m + 5m

4n = 8m

n = 8 m / 4 n = 2m ••••••• (ii)

Podemos ver que ambos son iguales;

n = 2 m 1 = 2m / n

divide ambos lados por 2

m / n = 1/2.

8. In the function f(4)=16, 16 is
A. function
B. input
C. output
D. rule

Answers

F is the name of the function. 4 is the input. 16 is the OUTPUT

6.3% of the 6,540,000 Indiana residents were listed as Hispanic or Latino in 2012, how many people would this be?

Answers

Answer:

412020

Step-by-step explanation:

It is given that,

6.3% of the 6,540,000 Indiana residents were listed as Hispanic or Latino in 2012. We need to find the no of people for this.

Using the concept of percentage as follows :

[tex]\dfrac{6.3}{100}\times 6540000 =412020[/tex]

Hence, there would be 412020 people.

Silk cloth is on sale at a price of $19.80 for 5 yards. If 14 yards of the cloth are
bought at the same rate, what is the

A.estimated cost of the cloth? (1 point)

B.actual cost of the cloth? (1 point)

Answers

i think the actual cost is $55.44

Convert 0.9 to a percent

Answers

Answer:

0.9%

Step-by-step explanation:

Answer:

90%

Step-by-step explanation:

0.9*100% (formula to calculate decimal into percent)

Hope it helps!!

Thankyou!!

Carrie is making a cake recipe that calls for 2 3/4 cups of sugar. She needs 1 2/3 cups of sugar for the frosting. What is the total amount of sugar used?

Answers

2 3/4 + 1 2/3
11/4 + 5/3
33/12 + 20/12
53/12 = 4 5/12

Answer:

4 5/12

Step-by-step explanation:

can someone answer this for me pls

Answers

Answer: Lin is the most consistent and I would want to have them on my team.

Why is this? Because their dots are more clustered together compared to the other distributions. Elena may have made the most shots (9) at one point, but her data set is very spread out and more unpredictable. The more spread out a data set is, the higher the variance and standard deviation. The range is also affected by how spread out the data set is since

range = max - min

So in a rough sense, the range can be used to estimate the variance and standard deviation. Though more accurate formulas are usually the better way to go.

Whats 7 divided by 9?

Answers

Answer:

7/9 or 0.77

Step-by-step explanation:

since you can't simplify this anymore you can just write 7/9 or 0.77

Hope this helps :)

The calculated division of the numbers 7 divided by 9 is 7/9

How to calculate the division of the numbers

From the question, we have the following parameters that can be used in our computation:

7 divided by 9

When represented as an equation, we have

7 divided by 9 = 7/9

Divide 48 by 7

So, we have the following result

7 divided by 9 = 7/9

Using the above as a guide, we have the following:

the result is 7/9

Read more about quotient at

brainly.com/question/11418015

#SPJ6

The sphere shown below is placed in a full overflow cup and sinks to the bottom. How much water is displaced by the sphere?Lector inmersivo
(1 Punto)
A. 51.0 mL
Option 2
C. 88.6 mL
D. 407.7 mL
B. 66.5 mL

Answers

Answer:

A. 51.0 mL

Step-by-step explanation:

Given

The sphere with the diameter of 4.6

It displaces the amount of water equal to its volume

Volume of the sphere:

V = 4/3πr³V = 4/3π(d/2)³ = 1/6πd³V = 1/6*3.14*4.6³ =  50.939 ≈ 51.0 cm³ = 51.0 ml

Correct option is A. 51.0 mL

Answer:

A

Step-by-step explanation:

We are given a diameter of 4.6

4.6 / 2 = 2.3 (radius)

Volume of a sphere [ V = 4/3πr² ]

V = 4/3π(2.3)²

V = 4/3π(5.29)

V = 4/3(38.20438)

V ≈ 51

Best of Luck!

Is 10 a whole number

Answers

Answer:

Yes

Step-by-step explanation:

A whole number is any number without a decimal. It can also be called an integer.

Find the domain and range of the relation: (9, -2), (8, -2), (7, -2), (6, -2). Then determine whether the relation is a function.


Domain = { }

Range = { }


Is the relation a function?
Yes

No

Answers

Answer:

domain- 9,8,7,6. Range: -2

Step-by-step explanation:

Domain is always x and range is always y

What number could replace x to make a true statement?
2/3 < x/8 < 7/8


Answers

Answer:

x=6

Step-by-step explanation:

1. get the gcf of 3 and 8

3×8=24

2.the new equation would be this:

16/24<3x/24<21/24

3. the value of x would be 6 because 3×6=18.

3×5=15 wouldnt make sense because it is is smaller than 16.

A toy car can go 3 mph. How long would it take to go 10 miles?

Answers

Answer:

2 2/3 hours

Step-by-step explanation:

if the car can go 3 miles per hour that means it can go 10 miles in 2 2/3

It takes to go 10 miles 2 2/3 hours.

We have given that,

A toy car can go 3 mph.

We have to determine, How long would it take to go 10 miles.

What are the miles?

A mile is a unit of distance equal to 1760 yards or approximately 1.6 kilometers. Meaning, pronunciation, translations, and examples.

If the car can go 3 miles per hour that means it can go 10 miles in 2 2/3.

To learn more about miles visit:

https://brainly.com/question/1127371

#SPJ2

2. Give recursive definitions for the following sets. a. The set of all strings over {a, b} containing at least one "a". b. The set of odd-length binary strings that end with 00.

Answers

Answer and  explanation:

Recursive is related to repeat the definition, rule, and procedure.

a) The set of all strings over {a,b} containing at least one a.

Let x is a string containing at least one a: x=a and y= b

Sets of union of XY and yx will be (XY) (yx) = (a,b) (b, a)

b) The set of odd length binary strings that end with 00

There is a regular expression compared with two 00, which is surrounded by 0+1 with at least two 0s.

Teah was selling candy bars for a fundraiser. She spent $25 on a box of candy bars and sold each candy bar for $2.50. Her profit was $75. Teah wrote the equation 2.5c−25=75 for this situation, and she found c=40.

Which statement is true about the solution c=40?

The solution c=40 is the selling cost of each candy bar, in dollars.
The solution c=40 is the selling cost of a box of candy bars, in dollars.
The solution c=40 is the number of candy bars Teah sold.
The solution c=40 is the amount in dollars that Teah spent on a box.
The solution c=40 is the profit in dollars Teah made from each candy bar.

Answers

Answer: The solution would be C

Step-by-step explanation:

If we multiply 40 candy bars by $2.50 we would get the answer of $100 because that is how much she made from selling candy bars. . Then we would have to subtract that answer by $25 because that is how much the box cost. $100 minus $25 is equal to $75. So the answer would be option C    

What is the point-slope form of a line with slope 6 that contains the point
(1,2)?
A. y + 2 = 6(x - 1)
B. y+ 2 = 6(x+1)
C. y-2 = 6(x-1)
O D. x+ 1 = 6(y+2)

Answers

Answer:

The answer is option C

Step-by-step explanation:

To find an equation of a line in point slope form when given the slope and a point we use the formula

[tex]y - y_1 = m(x - x_1)[/tex]

where

m is the slope

( x1 , y1) is the point

From the question the point is (1,2) and the slope is 6

The equation of the line in point slope form is

[tex]y - 2 = 6( x - 1)[/tex]

Hope this helps you

what expression is equivalent to 6-(-8

Answers

Answer:

14

Step-by-step explanation:

Subtracting a negative is the same as Adding a positive

6--8=6+8

6+8=14

Hope this helps! :D

BD=2x CD= 8 BC=x determine the numerical length of BD

Answers

Answer:

BD = 16

Step-by-step explanation:

        X                     8                        

B----------------C-----------------D

|<------------2X------------------->|

FIND; numerical length of BD

BC + CD = BD

X + 8 = 2X

8 = 2X - X

8 = X

BD = 2X

BD = 2(8)

BD = 16

Segment AB has endpoints A(-2, 3) and B(6, 11). Find the coordinates of the midpoint of AB.
Midpoint =

Answers

Answer:

Midpoint = (2,7)

Step-by-step explanation:

Which graph of ordered payers show a proportional relationship?

Answers

Answer: If the relationship between two quantities is a proportional relationship, this relationship can be represented by the graph of a straight line through the origin with a slope equal to the unit rate. For each point (x, y) on the graph, ž is equal to k, where k is the unit rate.

what does b equal can i please have your help

Answers

Hey there! I'm happy to help!

These are corresponding angles since they both connect a parallel line and the transversal. This means they are congruent and have the same value. So, we can set up the following equation.

8x-8=5x+25

Subtract 5x from both sides.

3x-8=25

Add 8 to both sides.

3x=33

Divide both sides by 3.

x=11.

Have a wonderful day! :D

Answer:

x = 11

∠B = 80

Step-by-step explanation:

∠A = ∠B

where

∠A = 8x - 8°

∠B = 5x + 25°

8x - 8° = 5x + 25°

8x - 5x = 25 + 8

3x = 33

x = 33/3

x = 11

plugin x into ∠B = 5x + 25°

∠B = 5x + 25°

∠B = 5(11) + 25°

∠B = 80

Peter bought 8 lemons for $6dollar sign,Each lemon was the same price. What was the cost for 1 lemon?

Answers

Answer:

Each lemon 75 cents

Step-by-step explanation:

Simply divide 6 by 8

6/8=0.75

Each lemon 75 cents

Hope this helps! Plz award Brainliest : )

6/8 = .75 cents per each lemon

Which of these could be the volume of a rectangular box?

Answers

Answer:Understand the volume of a rectangle equals it's length x width x height. If your box is a rectangular prism or a cube, the only information you need is the box's length, width, and height. You can then multiply them together to get volume. This formula is often abbreviated as V = l x w x h.

Step-by-step explanation:

What is 10.56 divided by 2.4?

Answers

Answer:

10.56÷2.4=4.4

Step-by-step explanation:

PLZ ANSWER PIC INCLUDED​

Answers

Answer:

28 feet

Step-by-step explanation:

We know that the perimeter of a square is [tex]2l + 2w[/tex], where l is the length and w is the width.

We also know that the perimeter of a triangle is all of its sides added up.

Since the perimeters will be equal to each other, we can make both of these statements an equation that are equal to each other.

Basically:

[tex](3x - 3) + (3x - 3) + (x - 3) + (x - 3) = (2x - 1) + (2x - 1) + (2x)[/tex]

We can combine like terms to get a less scary  equation.

[tex]8x - 12 = 6x - 2[/tex]

Our goal is to now isolate x so we can find it's value.

Add 2 to both sides:

[tex]8x - 10 = 6x[/tex]

Subtract 6x from both sides:

[tex]2x - 10 = 0[/tex]

Add 10 to both sides:

[tex]2x = 10[/tex]

Divide both sides by 2:

[tex]x = 5[/tex]

Now we know the value of x, however, our work isn't done. They want to know the perimeter, so we need to substitute x in as 5.

Let's do it on the triangle.

[tex]6x-2[/tex] (remember, this is our simplified version of the triangle)

[tex]6(5) - 2\\\\30 - 2\\\\28[/tex]

Hope this helped!

What percent of 50 is 150

Answers

150/50 x 100% = 300%

Answer:

300

Step-by-step explanation:

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