Mathematics High School

## Answers

**Answer 1**

**Answer:**

2/3

**Step-by-step explanation:**

1/(3/4)=4/3(4/3)2.5

10 cups/=3.333

## Related Questions

72% of ______ days is 18 days.

### Answers

**Answer:**

25 days

**Step-by-step explanation:**

lets the blank = x

**Convert 72% to decimal: **0.72

0.72x = 18

x = 18/0.72

x = 25

-Chetan K

Convert 555 into base five numeral system .( no link pls)............

### Answers

Presumably you mean 555 as a number in base 10.

We have

555 = 5 •(100 + 10 + 1)

… = 5 •(4 • 25 + 2 •5 + 1)

… = 5 •(4 •5² + 2 •5¹ + 1 •5⁰)

… = 4 • 5³ + 2 •5² + 1 •5¹

… = **4210₅**

Question Find the difference of (t−8)−(t+15)

### Answers

**Answer:**

-23

**Step-by-step explanation:**

(t-8) - (t + 15)

**t** - 8** - t** - 15

-8 - 15

-23

It takes 5 builders 3 1/2 hours to build a wall. How many hours will it take for 2 builders to build an identical wall?.

### Answers

**Answer:**

8.75 hours for 2 builders so complete it

**Step-by-step explanation:**

its right because im smart and i say its right

If it takes** 5 builders **[tex]3\frac{1}{2}[/tex] hours to build a wall, it will take** 2 builders** [tex]8\frac{3}{4}[/tex] hours to build an **identical wall**

The **time taken** for **5 builders** to build the wall = [tex]3\frac{1}{2}[/tex] hours

The time take for 5 builders to build the wall = 3.5 hours

**Time taken** for **1 builder** to build an identical wall =

5 x (Time taken for 5 builders to build the wall)

Time taken for 1 builder to build the wall = 5 x 3.5

**Time taken** for **1 builder** to build the **wall **= 17.5 hours

Time taken for 2 builders to build an** identical wall** = (Time taken for 1 builder)/2

Time taken for **2 builders **to build an identical wall = 17.5/2

Time taken for 2 builders to build an identical wall = 8.75 hours

**Time taken** for **2 builders** to build an** identical wall** = [tex]8\frac{3}{4}[/tex] hours

Learn more here: https://brainly.com/question/25874783

solutions of the quadratic $x^2 + 7x - 18 = 0.$

### Answers

(x^2+7x-18) can be factored into (x+9)(x-2). Set each part equal to zero and solve for x.

x+9=0 => x=-9

x-2=0 => x=2

I’m guessing the dollar signs aren’t supposed to be there.

The **solution **of the **quadratic equation **x² + 7x - 18 = 0 will be 2 and **negative **9.

What is the solution to the equation?

The allocation of weights to the important **variables **that produce the **calculation's **optimum is referred to as a direct **consequence**.

The **quadratic equation **is given as ax² + bx + c = 0. Then the **degree **of the equation will be 2.

The **quadratic **equation is given below.

x² + 7x - 18 = 0

**Factorize **the **quadratic **equation, then we have

x² + 7x - 18 = 0

x² + 9x - 2x - 18 = 0

x(x + 9) - 2(x - 9) = 0

(x + 9)(x - 2) = 0

x = 2, -9

The **arrangement **of the **quadratic **condition x² + 7x - 18 = 0 will be 2 and **negative **9.

More about the **solution of the equation** link is given below.

https://brainly.com/question/545403

#SPJ2

Given z varies jointly as x and y, use the given values to find an equation that relates x, y, and z.

x = 3, y = 8, and z = 54

### Answers

**Answer:**

z = 2.25xy

**Step-by-step explanation:**

Given z varies jointly as x and y then the equation relating them is

z = kxy ← k is the constant of variation

To find k use the condition x = 3, y = 8 and z = 54 , then

54 = k × 3 × 8 = 24k ( divide both sides by 24 )

[tex]\frac{54}{24}[/tex] = k = 2.25

z = 2.25xy ← equation of variation

The car travels 60 km from city A to city B passed at speed x. On the way back, the speed was increased by 12 km / h. What is the initial speed if the car has traveled for a total of 10 hours?

### Answers

**Answer:**

54 km/h

**Step-by-step explanation:**

use **s=½(u+v)****t**

600=½(x+x+12)10

600=½(2x+12)10

600=(2x+12)5

600=10x+60

540=10x

x=54 km/h

I think this is how to do it, I'm so sorry if I do it wrong!

what is the theoretical of flipping a coin and it lands on heads

### Answers

There is a 50/50 chance that it could possibly land on heads, or tails.

**Answer:**

50/50

**Step-by-step explanation:**

Im not completly sure but when flipping a coin there is only two sides so theoretically if you are flipping a coin there is a 50/50 percent chance you will get heads

A book sold 35,100 copies in its first month of release. Suppose this represents 8.8% of the number of copies sold to date. How many copies have been sold to date?

### Answers

**Answer:**

**561,972 copies**

**Step-by-step explanation:**

**MATH-**

help pls?? will give brainilest <3

### Answers

**Answer:**

The y = 0.5 the x = 1

**Step-by-step explanation:**

The y = 0.5 the x = 1

**Answer:**

y=1/2x

**Step-by-step explanation:**

y=mx+b, where m is the slope, b is the y-int and y and x are variables.

y=1/2x+0 is the answer but you dont need to add the 0.

To get the slop you do RISE/RUN which in this case is 1/2

Hope that helps. Brainliest is appreciated

the sample space is 1,2,3,4,5,6 find p less than 0

### Answers

**Answer:**

boom bam bam boom bam ba

which angles are correspoding angles

### Answers

**Answer:**

Whentwo lines are crossed by another line(which is called the Transversal), the angles in matching corners are called corresponding angles. Example: a and e are corresponding angles. When the two lines are parallel Corresponding Angles are equal.

Help ~ with this question~

[tex]4 + 4 \div 5[/tex]

### Answers

I just added 4 plus 4 to get 8 then divide by 5 which become the decimal 4.8……

**Answer:**

4.8

**Step-by-step explanation:**

[tex]\sf 4+4\div 5[/tex]

[tex]\sf 4\div 5 =0.8[/tex]

[tex]\sf 4+0.8[/tex]

[tex]\sf 4.8[/tex]

* Hope it helps, ty 4 pts!

* Have a good day!

If 35 liters of petrol cost $21.00, what is the price per liter?

### Answers

**Step-by-step explanation:**

if 21 dollars = 35 liters

the ? dollars = 1 litre

it will be less so more which is the 35 divides

so we have

1/ 35 ×21

21/35

0.6

Coby designs a rectangular vegetable garden. What will be the length of the full-size

vegetable garden?

### Answers

**Answer:**

168. would be the length

Juno is taking a taxi. The table represents a linear function and shows the amount she owed after various numbers of miles traveled. Is the rate of change 2. 25? Amount Juno Owed for a Taxi Miles Amount Owed (dollars) 1 2. 5 2 2004. 75 3 7 4 9. 25 5 11. 5 Yes, because the amount owed changes by 1 every time the miles change by 2. 25. Yes, because the amount owed changes by 2. 25 every time the miles change by 1. No, because the amount owed does not change by 1 every time the miles change by 2. 25. No, because the amount owed does not change by 2. 25 every time the miles change by 1.

### Answers

**Linear functions **are represented by **constant rates**.

The true statement is (d) No, because the **amount owed **does not **change **by 2.25 every **time **the **miles **change by 1.

From the table, we can see that:

As the number of **miles **increase by 1, the **amount owed **increases, but it does not increase at a **constant rate **of 2.25.

This means that, the **table **does not represent a **linear function**.

Represent the **linear functions** at:

https://brainly.com/question/15602982

Help help help help

### Answers

C = 72 is the answer

Please solve this math problem... I will mark you brainliest if it’s the correct answer

### Answers

**Answer:**

1712 square meters

**Step-by-step explanation:**

2000 - 288 = 1712

2000 - 228 = 1772 so the answer is 1772

What is the sum of all integers which are not divisible by 5 or 9 between 1 and 100?

### Answers

The sum of all integers which are** not divisible by 5 or 9** between 1 and 100 **is 3541**.

To determine what is the sum of all integers which are not divisible by 5 or 9 between 1 and 100, the following **calculation **must be performed:

1 + 2 + 3 + .... + 100 = 5050(5050 - 9 - 18 - 27 - 36 - 45 - 54 - 63 - 72 - 81 - 90 - 99 - 5 - 10 - 15 - 20 - 25 - 30 - 35 - 40 - 50 - 55 - 60 - 65 - 70 - 75 - 80 - 85 - 95 - 100) = X3541 = X

Therefore, the sum of all integers which are** not divisible by 5 or 9** between 1 and 100 **is 3541**.

Learn more about **maths **in https://brainly.com/question/25942965

In ΔJKL, j = 74 cm, k = 14 cm and l=80 cm. Find the measure of ∠J to the nearest degree.

### Answers

**Answer:**

∠J = 60°

**Step-by-step explanation:**

The Law of Cosines tells you ...

j² = k² +l² -2kl·cos(J)

Solving for J gives ...

J = arccos((k² +l² -j²)/(2kl))

J = arccos((14² +80² -74²)/(2·14·80)) = arccos(1120/2240) = arccos(1/2)

** J = 60°**

_____

*Additional comment*

It is pretty rare to find a set of integer side lengths that result in one of the angles of the triangle being a rational number of degrees.

**Answer:**

60

**Step-by-step explanation:**

Write an equation in point-slope form of the line that passes through the point (-6,6) and has a slope of m=3/2

### Answers

**Answer:**

y=3/2 x+15

**Step-by-step explanation:**

Given that a [] b = b2 + a. Evaluate 2 [] (6[] - 5).

### Answers

**Answer:**

963

**Step-by-step explanation:**

Evaluate 6 | - 5 , then the outside part, that is

6 | - 5 ( with a = 6 and b = - 5 )

= (- 5)² + 6 = 25 + 6 = 31

Now evaluate 2 | 31 ( with a = 2 and b = 31 )

= 31² + 2 = 961 + 2 = 963

can someone help me do this and show work

### Answers

**Answer:**

Bank A: 24 years, Bank B: 28 years

**Step-by-step explanation:**

An online T-shirt store is having a sale. The original price of each T-shirt is p dollars. The store sells 20 T-shirts and earns a total of (20p−60) dollars.

a. Factor the expression using the GCF.

20p−60=

b. The discount per T-shirt is $

. what is the discount

### Answers

**Answer:**20 (p-3)

**Step-by-step explanation:**

Plzzzzz help meeee plzzzzzzz plzzz

### Answers

**Answer:**

try 20%

**Step-by-step explanation:**

I have no clue lol

I accidently put supplementary so ignore that.

### Answers

**Answer:**

5. Vertical

6. 133°

**Step-by-step explanation:**

These are vertical angles; Vertical angles are congruent. Therefore, x = 133°.

The perimeter of a rectangular piece of paper is 52 inches. The area is 133 square inches. What are the dimensions of the paper?

____inches by ____ inches

### Answers

**Answer:**

**7 **inches by **19** inches

**Step-by-step explanation:**

We can use a system of equations for this.

*x=length*

*y=width*

**2x+2y=52 **(Perimeter)

**xy=133 **(Area)

We must find **x **and **y** that fit both these equations.

Hope this helps :)

Type the missing number in this sequence:

-2,

-50,

-250,

-1,250,

-6,250

### Answers

**Answer:**

the next is -2 × 5 = - 10

**Step-by-step explanation:**

the sequence is times 5

I need answers to both of the questions Please help

### Answers

**Answer:**

131 minutes, an = 15 + (n - 1)(4)

**Step-by-step explanation:**

each time she is increasing by 4 minutes

we can write this equation like this since we have the difference and the first part:

an = 15 + (n - 1)(4)

note

"an" (or ace of n)'s n is in subscript and is written just like a superscript but on the bottom

we can plug in this equation to find ace of 30 (a30)

15 + (30 - 1)(4)

15 + 29*4

116 + 15

a30 = 131

**Answer: **

**1.) 192 minutes**

**2.) If it's the 9th day : 69 minutes**

**If it's the 10th day : 64 minutes**

**Step-by-step explanation:**

1.) 5th Day - 32 minutes

32*6= 192 minutes on the 30th day.

2.) If it's the 9th day -

3rd Day - 23 minutes

23*3= 69 minutes

2.)If it's the 10th day -

5th day - 32 minutes

32*2= 64 minutes

A Freight Train Travels 144 miles in 6 hours.How Far will it travel in 15 hours

Please help me out kindda hard

### Answers

Hello there, there are multiple ways of solving this problem, let me show you.

[tex]{\huge{\boxed{\mathbb{QUESTION}}}}}[/tex]

A Freight Train Travels 144 miles in 6 hours. How Far will it travel in 15 hours?

_________________

For this problem I will show you 2 methods.

[tex]{\huge{\boxed{\mathbb{METHOD\:ONE}}[/tex]

Cross multiplication, cross multiplication involves algebra to use.

Let x be our answer for this problem. Here is our it would look like

[tex]\frac{6}{144}=\frac{15}{x}[/tex], now we will cross multiply, here is what it'd look like now.

[tex]6x=2160[/tex], then do simple algebra and divide both sides by 6. and then we get [tex]x=360[/tex] miles in 15 hours.

_________________

[tex]{\huge{\boxed{\mathbb{METHOD\:TWO}}[/tex]

For method two we can look for the unit rate. Also known as our rate for one.

divide 144 by 6 and we get 24, then multiply it by 15 and we get 360.

_________________

[tex]{\huge{\boxed{\mathbb{EXACT\:ANSWER}}[/tex]

360 miles in 15 hours.

*Have a good day :) !*

360 mph . 144 divided by 6 equal 24 mph , so 24 times 15 will equal 360 .