Mathematics High School

Solve for r.
19.72 = 4r

Answers

Answer 1

Answer: R = 4.93

Step-by-step explanation:

19.72/4 = 4.93

Answer 2

Hope the answer helps!!!
:)

Related Questions

Students are making ornaments and each takes 14 of a piece of Bristol board. They go to the cupboard and find 5 pieces oStudents are making ornaments and each takes 14 of a piece of Bristol board. They go to the cupboard and find 5 pieces of Bristol board. How many ornaments can they make?F Bristol board. How many ornaments can they make?

Answers

Answer:

The students can make 70 pieces of ornament from the 5 pieces of Bristol board from the cupboard.

Step-by-step explanation:

Since each student takes 14 of a piece of Bristol board to make an ornament, and we have 5 pieces of Bristol board in the cupboard, this implies that we require 1 Bristol board makes 14 pieces of ornament. Therefore 5 pieces of Bristol Board will make 5 × 14 pieces of ornament = 70 pieces of ornament.

So, the students can make 70 pieces of ornament from the 5 pieces of Bristol board from the cupboard.

Two eighth grade classes are selling tickets to raise money for their school fundraiser.

• One class is selling tickets for $3.50 each and has already raised $250.
• The other class is selling tickets for $2.25 each and has already raised $300.

How many tickets does each class have to sell so that the total amount raised is the same for both classes?

Answers

Answer:

the answer is 40

Step-by-step explanation:

Answer:

Step-by-step explanation:

The perimeter of a worksheet is 48 inches. The worksheet is 14 inches long. How tall is it?
inches

Answers

Answer: 10 inches

Step-by-step explanation:

1. multiply 14 by 2 to get 28.

2. Subtract 28 from 48 to get 20

3. Divide 20 by 2 to get 10

your answer is 10

Answer: 10 inches

Step-by-step explanation:

a worksheet is usually a rectangle

the formula for the perimeter of a rectangle is 2x + 2y

Lets say that x = the length and y = the height

it already gives you x = 14, so plug everything in to find y

P = 2x + 2y

48 = 2(14) + 2y

48 = 28 + 2y plug in x = 14 and multiply

20 = 2y subtract 28 from both sides to get this

y = 10 then divide both sides by 2 to get the answer

A clothes hanger is in the shape on an isosceles triangle. If the hanger is 70° wide what are the base angles?

Answers

Answer:

55°

Step-by-step explanation:

Given parameters:

Angles in the triangle;

70°, X° and X°

The triangle is an isosceles triangle;

In all triangles, the sum of the interior angles is 180°

So;

70° + X° + X° = 180°

70° + 2X° = 180°

2X° = 180° - 70°

2X° = 110°

X° = [tex]\frac{110}{2}[/tex] = 55°

Alonzo earns 8% commission on vacuum cleaner sales. This past month, Alonzo sold 70 units at $150.00 each. How much did Alonzo make in commissions for the past month? Explain how you found your answer.

Answers

Answer:

Made $840 in commissions for the past month.

Step-by-step explanation:

sales = 70 * 150 = 10500

commission = .08 * 10500 = 840

Answer:

$840

Step-by-step explanation:

8% = 0.08

.08 * 150 = 12 per unit sold

12 * 70 = 840.00

writing equations of lines

Answers

Step-by-step explanation:

Equation of straight line is y=mx+c

choose any two points on straight line

for me I choose:(-3,11) and (3,-1)

use these two points to find gradient,m.

m= (-1-11)/(3-(-3))

m= -2

now, y=-2x+c

choose any point on the straight line

I choose point (3,-1)

sub the point into the equation to find c

-1=-2(3)+c

c=5

equation: y=-2x+5

The sum of three numbers is 79. The sum of five times the first number and two times the
second number increased by the third number is 859. Two time the first number, increased by
three times the second number plus nine times the third number is 498. Write a system.

Answers

Answer:

(x+y+z)=79

5x+2y+z=859

2x+3y+9z=498

Step-by-step explanation:

Its writing 3 different equations that have the same value for the same variable.

To produce an
enlarged or reduced
measure you
the
scale.

Answers

Answer: multiply

Step-by-step explanation:

5% of 59 is what number?

Answers

Answer:

2.95

Step-by-step explanation:

Answer:

Hello!!! erz here ^^

Step-by-step explanation:

2.95

5 x 59

-----------

100

= 2.95

An eight ft board is cut into two pieces. One piece is 2 ft longer thant he other. How long are the pieces?

Answers

Answer: 6 ft and 2 ft

Step-by-step explanation:

Answer:

6ft and 2ft

Step-by-step explanation:

8ft board ÷ 2 pieces = 4ft each

4ft and 4ft boards. But one of them is longer by 2ft so:

4ft - 2ft = 2ft

4ft + 2 ft = 6ft

So, one piece is 2ft and the other piece is 6ft

(1.2)^2 = 1.44
True or False

Answers

Answer:

True

Step-by-step explanation:

1.2^2 = 1.44

1.2 · 1.2 = 1.44

Hope I helped :)

Please consider Brainliest :)

answer = true
because when u add (1.2) and the exponent which in this case is 2 u would be multiplying (1.2) 2x

Hooke’s law states that the distance that a spring is stretched by hanging object varies directly as the mass of the object. If the distance is 20 cm when the mass is 3 kg, what is the distance when the mass is 5 kg?

Answers

Answer:

33.3333333

Have a nice day! :)

While on vcacation, kevin and his family visit mount rushmore in south dakota. They watcha movie in the vistor center for 1/2 of an hour. This accounta for 1/4 og the toatl time the spend at mount rushmore. What equation can you use to find the total amount of time t kevin's family spends at mount rushmore

Answers

Answer:

t = 1/2 ÷ 1/4

t = 2 hours

Step-by-step explanation:

Time spent watching movies = 1/2 of an hour

This accounts for 1/4 of the total time thei spend at mount rushmore.

1/2 = 1/4t

Where t = total time they spent at mount rushmore (hours)

1/2 = 1/4t

Determine the equation to find t

t = 1/2 ÷ 1/4

= 1/2 × 4/1

= 4 / 2

= 2

t = 2 hours

A pension fund manager is considering three mutual funds. The first is a stock fund, the second is a long-term government and corporate bond fund, and the third is a T-bill money market fund that yields a sure rate of 4.2%. The probability distributions of the risky funds are: Expected Return Standard Deviation Stock fund (S) 12 % 33 % Bond fund (B) 5 % 26 % The correlation between the fund returns is .0308. Suppose now that your portfolio must yield an expected return of 11% and be efficient, that is, on the best feasible CAL. a. What is the standard deviation of your portfolio? (Do n

Answers

Answer:

28.63%

Step-by-step explanation:

Given data:

correlation between funds = 0.308

Risk-free rate = 0.042

Expected return rate = 0.11

Calculate the standard deviation of the new portfolio

standard deviation of portfolio = ( weight of risky assets )* (standard deviation of optimal risky portfolio )

weight of risky assets = (expected return - risk-free rate) / ( expected return of optimal portfolio - risk-free rate ) ( calculated using excel spreadsheet)

= 0.9696

Standard deviation of optimal risky portfolio = 29.525489% ( calculated using excel spreadsheet )

hence standard deviation of portfolio that would an expected return of 11%

= 0.9696 * 29.525489%

= 28.63%

A round plate has a radius of 8.25 inches. What is the circumference of the plate?

Answers

Answer: The circumference of the plate = 51.86 inches.

Step-by-step explanation:

Given : The radius of a round plate = 8.25 inches

Formula: circumference of a circle = [tex]2\pi r[/tex] , where r = radius of circle .

Then, the circumference of the plate [tex]=2\times\dfrac{22}{7}\times8.25[/tex] [ [tex]\pi=\dfrac{22}{7}[/tex] ]

[tex]=51.857142857\approx51.86\ \text{inches}[/tex]

Hence, the circumference of the plate = 51.86 inches.

PLEASE ANSWER THIS!!! DUE IN 10 MINUTES!!!!!!

Answers

Answer:

16. $0.16 17. $5.40 18. $4.29 19. 2 2/3 mph or 2.66 mph

Step-by-step explanation:

10x- 2y=16 and x+5y=-20
are perpendicular,parallel or neither

Answers

They are parallel that’s the answer

Parallel that’s the answer

Fill in the table so it represents a linear function. x 5 10 15 20 25 y - 1 11

Answers

Answer:

Step-by-step explanation:

go up by 3 so its

-1, 2, 5, 8, 11

please help me on part a and after part a I will send you part b

Answers

to be honest i’m probably the worst at math lol good luck

is 42% bigger than 0.44

Answers

Answer: No

0.44 is equal to 44%.

42% is equal to 0.42.

0.44 is greater than 0.44.

44% is greater than 42%.

Answer = no

pratctice and Solving Solve each equation with variables on both sides 1. 6x - 2 = x + 13

Answers

Answer:

x=3

Step-by-step explanation:

6x - 2 = x + 13

subtract 1x from both sides

5x - 2 = 13

isolate the 5x by adding 2 to both sides

5x = 15

finnaly devide both by 5

x = 3

Answer:

-7

Step-by-step explanation:

1.6x-2=x+13

+1.6x +1.6x

-2=2.6x+13

-13 -13

-15=2.6x

(2.6 divided by 2.6)

(-15 divided by 2.6 is -7)

answer:-7

Sorryyyyy its hard to explain

you are getting your hair cut and it costs you $18.30 you decide to tip the hairdresser 15% how much did you pay in total

Answers

Answer:

You pay $21.05 in total!

Simplify: 7^-8 x 7^-4
someone please help me?

Answers

Answer:

7.22476158 x 10^-11

Step-by-step explanation:

Answer with step-by-step explanation:

7^(-8) x 7^(-4) = 7.2247615811111111111

1.7346652551111111 x 0.0004164931 = 7.2247615811111111111

So the answer is A) 1/7^12

Hope this helped! (brainliest please)

PLEAS HELP IM ON A WUIZ
What is -6? It is...
Rational Number
Integer
Whole Number
Natural Number

Answers

Answer: Integer, rational number

What is the value of x? Teach me

Answers

The triangle altogether is 180° so 100+50 equals 150 and if you add 30 to that then that’s your Awnser... 180-100-50-30=0 so

WILL GIVE BRAINIEST!!!!!!
Write the slope intercept form of the equation of the
given points

Answers

Answer:

hope this helps!

if u do y2-y1 over x2-x1 you should get a

What is the value of the expression below when y = 5?

y^2 - 3y + 6

(Please help!!)

Answers

Answer:

Step-by-step explanation:

you have to sub in the value in order to get the answer, I'm not really sure, sorryy if it's wrong

Answer:

Step-by-step explanation:

y^2=25

-3y=-15

25-15+6

kyle has 108/4 if he cuts it into 3/4 of an inch how many pieces will he have

Answers

Answer:

Step-by-step explanation:

Divide 108 by 3 to get your answer, since the denomintors are the same.

103/3 = 36

1-Describe the error in the way the calculation of the slope of the two points is set up and/or solved. Please be specific. Do not just state what the slope should be. Describe the error.
2- Use the same two points from the error analysis question above and show how to calculate the slope correctly. Then, use the correct slope and one of the points to write the equation in point-slope form of the line. Show all work!

Answers

Answer:

Please check explanations for answer

Step-by-step explanation:

Let’s have two points (5,10) and (15,20)

1. Let’s find the slope of these two points

Mathematically, the slope can be calculated using the formula;

m = (y2-y1)/(x1-x2)

So m = (20-10)/(5-15) = 10/-10 = -1

The error here is the formula used in calculating the slope

The formula should be;

m = (y2-y1)/(x2-x1) and not x1-x2

2. To calculate the slope correctly, we have;

m = (y2-y1)/(x2-x1)

So the slope will be;

m = (20-10)/(15-5) = 10/10 = 1

In the point slope form, the equation can be represented as;

y-y1 = m(x-x1)

Let’s use the point (5,10)

y- 10 = 1(x-5)

The above is the point slope form

using one of the points and the correct slope of the line

Value: 10 points + Brainliest
11÷∛100·198³

Answers

Answer:

49297810.2183

Step-by-step explanation:

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Solve for r. 19.72 = 4r

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Solve for r.
19.72 = 4r