Mathematics High School

I think of a number, multiply it by three, and add four. I get twenty two.
a)
Using the statement above, form an equation.
Use the letter 'X' for the unknown number.
b)
Solve the equation.

Answers

Answer 1

Answer:

x = 6

Step-by-step explanation:

let the number be x , then

3x + 4 = 22 ( subtract 4 from both sides )

3x = 18 ( divide both sides by 3 )

x = 6

The unknown number is 6

Answer 2

Answer:

a). x3 + 4 = 22

b). x3 + 4 = 22

x3 = 18

x = 6

Related Questions

The perimeter of a rectangular tennis court is 228 feet. If the length of the court exceeds the twice the width by 6 feet, find its dimensions.

Answers

Answer:

Width= 36 Length=78

Step-by-step explanation:

width= w

length = 2w+6

perimeter = 2(l+w)

228=2(2w+6+w)

228 = 2(3w+6)

228=6w+12

216 =6w

w=36

width= w=36 ft

length = 2w+6 = 2(36)+6=78 feet

A customer buys 12oz of honey for $5.40. How much honey can you buy per dollar

Answers

Answer:

0.45oz or honey

Step-by-step explanation:

5.40/12

Mumbai is approximately 845 kilometers (km) away from Bangalore, and Mumbai is approximately
1160 km away from Delhi. The distances, measured in centimeters (cm), between the cities on Allyson's
map are proportional to the real distances.
Which of the following could be the distances on Allyson's map?

Answers

Answer:

42.25 cm & 58 cm,16.9 & 23.2 cm, 25.35 & 34.8 cm could be the distances on Allyson's map.

Step-by-step explanation:

At the grocery store 2/5 of a pound of grapes cost $2. What is the price per pound of grapes?

Answers

Answer:

$5 per pound of grapes

Step-by-step explanation:

Because 2/5 a pound of grapes cost $2 you would add another $2 for 4/5 pound of grapes. Then, you would divide 2 by 1/2 to get $1.

So 1 pound of grapes = $5

Hope this helps!!    **please give me brainliest :)

The cost of per pound of grapes is $5.

What is arithmetic operations?

A number juggling activity is determined by consolidating operands with one math administrator. The built-in functions ADD, SUBTRACT, DIVIDE, and MULTIPLY can also be used to specify arithmetic operations.

Both the plus sign and the minus sign can be used as operators with prefixes or infixes. Only infix operators can be used to represent all other arithmetic operators.

Given cost of 2/5 pound of grapes is $2

2/5p = 2

where p = pound

p = (2 x 5)/2

1p = 5

1 pound = $5

Therefore the 1 pound of grapes cost $5.

Learn more about arithmetic operations;

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PLEASE HELP ME and can u teach me how to do this thanks!

Answers

It would be 1/12 because you are making a third of the receptor and the original serving is 1/4
Answer: 1/12

In the original recipe it calls for 1/4 teaspoon red pepper. The question is asking for 1/3 of the recipe. So you would need to find 1/3 of 1/4. To do this multiply.

1/3 x 1/4 = ?

Multiply the numerators:

1 x 1 = 1

And multiply the denominators:

3 x 4 = 12

So you get 1/12

Each costume needs 46 cm of yellow ribbon the blue ribbon is 3 times larger than the 46 cm there are 64 costumes what is the total length of all the ribbon? I NEED HELP!

Answers

Answer:

981.3

Step-by-step explanation:

Solve x2 − 5x − 14 = 0

Answers

Answer:

x=7,x=-2

Step-by-step explanation:

x^2-5x-14=0

x^2-7x+2x-14=0

x(x-7)+2(x-7)=0

(x-7)(x+2)=0

x=7;x=-2

Answer:

= 7

= − 2

Step-by-step explanation:

hope this helps you sorry if it does not

Sean is travelling. He has a flight of 3 hours 40 minutes, a stopover of 40 minutes and then another flight of 5.5 hours. What is his total travel time? Give your answer in hours and minutes.​

Answers

Answer:

converting to minutes

Step-by-step explanation:

3*60+20+40+2.75*60=405 min = 6 hours 45 minutes

What do you think LCD mean

Answers

Least Common Denominator

Quis
bentuk dari
[tex]5 {}^{125} \div 5 {}^{124} = [/tex]
​

Answers

Answer:

[tex]5 {}^{125} \div 5 {}^{124} = \\ 5 {}^{125} - {}^{124} = \\ = 5 {}^{1} [/tex]

Answer:

5¹²⁵ ÷ 5¹²⁴

=5¹²⁵-¹²⁴

=5¹

What's 1+1? I must have a detailed explanation on the answer.​

Answers

Answer:

Sally has 1 muffin on the counter and she finds another muffin in the oven and she adds up how many muffins she has and she gets 2

Step-by-step explanation:

Hope this helped you if it did please mark brainliest

Answer:

1 + 1 = 2

Explanation:

Take a quick look at an addition chart, and you'll see that 1 + 1 = 2. Why is this? This is because when you add one and one you get two.

Which value is represented by point P? ​

Answers

10.8 or 10.9
Round about these points

Please help me, I will be really thankful ​

Answers

Answer:

h(-4) = -1

h(-1) = -1

h(0) = 2

Step-by-step explanation:

h(-4) = -1 because -4<-1 and from the instructions if x < -1, it is -1

h(-1) = -1 because -1 = -1

h(0) = 2 because if 1<x<2 than we have to solute this -(x-1)^2 + 3

in this we have to replace x with 0

-(0-1)^2 + 3= -(-1)^2 + 3 = -1 +3 = 2

hope it will help you ;)

there are 500 children in a school for the PT drill they have to stand in such a manner that the number of rows is equal to the number of columns.how many children would be left out in this arangement​

Answers

Answer:

16 children would be left out in this arrangement​

Step-by-step explanation:

Total number of children in a school = 500

For P.T. Drill number of rows = number of columns =x

The number of children who will be left out = 500−x^2  .

The square root of 500 gives remainder as 16 that means, the square of 22 is less than 500 by 16

To make it a perfect square = 500−16=484 Therefore, number of children left will be 16

= 16 children would be left out in this arrangement​

(Hope this helps can I pls have brainlist (crown)☺️)

65.2345 x 103= can you please slove it for me! ​

Answers

Answer:

6719.1535

Step-by-step explanation:

take 65.2345 times 103.on a calculator and you get 6719.1535

hello mathematicians help me pls Multiply (x + 1)^2

Answers

X^2+2x+1 is the answer…

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

Using identity :

[tex] \boxed{(a + b) {}^{2} = a {}^{2} + b {}^{2} + 2ab}[/tex]

the Above term can be written as :

[tex](x + 1) {}^{2} [/tex]

[tex]( {x})^{2} + (1 ){}^{2} + (2 \times 1 \times x)[/tex]

[tex] {x}^{2} + 1 + 2x[/tex]

y is directly proportional to x. When y = 30, x = 6 a) Work out an equation connecting y and x. b) Work out the value of y when x = 12.​

Answers

Answer:
y=5x (your equation)

y=60 (your answer)

Step by step explanation:
You are given two numbers, 6 and 30. Since 6 goes into 30, 5 times, then y(which is equal to 30) is equal to x(which is equal to 6) multiplied by 5, so you get your equation,

Y=5X

then you have to solve for y, so just substitute

Y=5(12)

And simplify

Y=60

And there’s your answer

An office supply store sells boxes of 7 pencils for $0.63 and boxes of 11 pencils at $1.10. Which is the better buy?

Answers

Answer:

The better buy is the box of 7 pencils each costing .09 versus .10 for the box of 11 pencils.

7/.063=9 cents per pencil

11/1.10=10 cents per pencil

Please allow me to know if I helped by clicking thank you, rating or brainly.

Miss Hawaii

whats a line that passes through the points (2,-9) and (-2,3)

Answers

answer is y=-3x-3
3-(-9)/-2-2=-3
y+9=-3(x-2)
Simplify
Then u get the answer

X 5
Find the Quotient.
3)34
I don’t get this
Is not showing just the answer if it’s 3)34 wat is the quotient

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

Division of 34 by 3 :

quotient will be equal to 11

and remainder = 1

what is the reflection of (-1, -3) on a graph

Answers

Answer:

(-1, -3) is in Quarter III on the coordinate grid.

If you want to find the reflection of it from the x-axis, the answer is (-1, 3) in Quarter II. But if you want to find the reflection of it from the y-axis, the answer is (1, -3) in Quarter IV.

11. If 1 is subtracted from the numerator and from
the denominator of a fraction, the value obtained
1
is z. If 1 is added to its numerator and to its
denominator, the resulting value is Ž. Find the
fraction.

Answers

Answer:

3/5

Step-by-step explanation:

Let x be the numerator

Let y be the denominator

1st equation:

(x-1) / (y-1) = 1/2

By simplifying the equation, 2(x-1) = y-1

y = 2(x-1) + 1

2nd equation:

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

By simplifying the equation, 3(x+1) = 2(y+1)

3x + 3 = 2y + 2

2y = 3x + 1

y = (3x + 1) / 2

Substituting the value of y from the 1st equation to the 2nd equation:

1st equation: y = 2(x-1) + 1

2nd equation: y = (3x + 1) / 2

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

x = 3

After finding the value of x, let's find y using the 2nd equation:

y = (3x + 1) / 2

y = [(3)(3) + 1] / 2

y = 5

Alternatively, we may also find the value of x using the first equation, and the result is still the same:

y = 2(x-1) + 1

y = 2(3-1) + 1

y = 5

CHECKING TIME!!!

Substituting the values of x and y:

Let x be the numerator, x = 3

Let y be the denominator, y = 5

1st equation: (x-1) / (y-1) = 1/2

(3-1) / (5-1) = 1/2

2/4 = 1/2

By simplification, 1/2 = 1/2

2nd equation:

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

(3+1) / (5+1) = 2/3

4/6 = 2/3

By simplification, 2/3 = 2/3

pls tell me which one it is

Answers

Answer:

X = 50

Step-by-step explanation:

Both equations TOGETHER equal 180 degrees so you write the equation:

2x + 30 + x = 180

(combine X's. Subtract 30 from both sides):

3x = 150

(divide both sides by 3)

X = 50

WILL GIVE BRAINLIEST
Find the measure of Z1 given angle 2 is 70 degrees. ​

Answers

Answer:

110°

Step-by-step explanation:

Since all angles on a straight line add upto 180°,

Angle 1 + Angle 2 = 180

Angle 1 + 70 = 180

Angle 1 = 180 -70

Angle 1 = 110°

Hope this helps and be sure to have a wonderful time ahead at Brainly!

Feel free to mark this as brainliest :D

Patrick stated
that the sum of a positive integer and a
negative integer is always negative. Find
a counterexample that illustrates why
this statement is not true.

Answers

Answer:

The sum of a positive integer and a negative integer always being negative is FALSE. Say were adding these two integers together, one of which is postive and the other negative: -5 + 12

-5 + 12 is equal to 7, which is NOT a negative integer.

enter the next 3 terms from the geometric sequence below -2,1,-1/2​

Answers

Answer:

1/4, -1/8, 1/16

Step-by-step explanation:

angle 1 and angle 7 form a linear pair

Answers

Answer:

what’s the question?

Step-by-step explanation:

I linear pair are supplementary angles that are the adjacent angles when two lines cross. angle1 + angle7 = 180

A student spends $48 on school supplies at a store where the sales tax rate is 7%.
What is the sales tax on the supplies in dollars and cents?

Answers

$9.63 and 9%%%%b your welcome

A sheet of plywood is 5/8 in. thick. How tall is a stack of 21 sheets of plywood?

Answers

Answer:

13.125 inches

Step-by-step explanation:

5/8*21=13.125

angles homework please help

Answers

Answer:

4 = 60     5 =  120     6 = 120     7 = 60

Step-by-step explanation:

This is the answer is really easy
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