Mathematics High School

## Answers

**Answer 1**

**Answer:**

3/4

**Step-by-step explanation:**

Reading out 0.75 as "75 hundredths" gives us the fraction 75/100. The greatest common factor between 75 and 100 is 25, so dividing the numerator and denominator by 25 gives us an equivalent fraction in simplest form:

[tex]\frac{75}{100}\div\frac{25}{25} =\frac{3}{4}[/tex]

## Related Questions

What would y=-5x+25 look like on a graph? When you find out, please give me an image.

### Answers

**Answer:**

**Step-by-step explanation:**

You and some friends go to eat, sodas and burgers. You buy a total of 11 items. Drinks(x) cost $3 each and burgers(y) cost $5 each. You spend a total of $45.

A.Write a system of linear equations that represents the situation.

B.how many drinks and burgers were bought?

*show work*

PLSSS HELLPPP

### Answers

3x+5y=45

X+y=11

3x+3y=33

5y=45-3x

Y=15-3/5x

X+15-3/5x=11

X-3/5x=-4

5x-3x=-20

X=10

Y=1

The dollar value v (t) of a certain car model that is t years old is given by the following exponential

function.

v (t) = 20,000(0.88)

Find the initial value of the car and the value after 11 years.

Round your answers to the nearest dollar as necessary.

Initial value:

Value after 11 years:

### Answers

**Answer:**

30000 valie after 11 years initial value

CAN SOMEONE PLEASE HELP ME ON THIS

### Answers

**Answer:**

a) $525 CAD

b) $168.30 per day

c) $38.05

**Step-by-step explanation:**

a) 1 USD = 500

1.05CAD x

cross-multiply: x = $525 CAD

b) 504.90 / 3 = 168.30 per day

c) 1 USD = x

1.05CAD 39.95

cross-multiply: 1.05x = 39.95

x = 39.95 / 1.05

x = $38.05 USD

What will this expression look like after distribution?

3 (1/3x + 2)

O 3x + 6

O x + 5

O 1/3x + 2

O x + 6

### Answers

The answer is A 3x+6 sorry if I am wrong

At an electronics store, a plasma television is on sale fore 25% off. The sale price is $630. What is the original price of the television?

### Answers

**Answer:**

is there a picture to express the question

**Answer:**

$840

**Step-by-step explanation:**

630/0.75 = 840

Which algebraic expression represents this mathematical statement?

26 more than a number

A. n = 26

O B. 26-n

C. 26.n

O D. n+ 26

### Answers

**Answer:**

Its D

n + 26

**Step-by-step explanation**

What's ￼676 divided by 13 in long division? I need step by step cause you have to drag the numbers.

### Answers

Answer: 52

Step-by-step explanation: Not much work with this one but hope this helps :)

What is the factored form of this expression?

18x2 - 50

### Answers

**Answer:**

first you should multiply 18 and 2 then it will come 36 then subtract 36 and 50 then the answer will come -14

the answer to this question is “-14”

solve the equation for all values of x by completing the square

x²+67=18x

### Answers

**Answer:**

[tex]x=±\sqrt[]{4}+9[/tex]

Find the unit rates and write them in both

fraction form and word form.

Helena runs 10 miles in two hours.

II

please help

### Answers

**Answer:**

**Step-by-step explanation:**

10 miles in 2 hours

10/2 = 5 so Helena runs 5 miles in 1 hour

5 mph

5miles/1hour

I am here my friend!

Please help me I’m terrible with things like this!!!

### Answers

In these equations, the value of y is 6/5 times the value of X

PLEASE HELP ASAP! DUE SOON PLEASE SHOW YOUR WORK

question: solve for the solution using substitution.

### Answers

**Answer:**

So for the first one the first ting u have to do is FLIP the equation so---> X-12=y

Then you have to add 12 to BOTH sides----> x-12+12=y+12

**So your answer for X ----> x=y+12**

* For Y on the first equation it is--->y=x-12* (Just flipped and the sign changed)

For the second equation we are gonna solve for Y first.

The first thing u want to do is divide both sides by -3 so it will look like this

-3y/-3 = 2x/+36/-3

**So Y will equal-----> -2/3x- 12**

Now we are going to do the X part

So fist FLIP the equation----> 2x+36= -3y

The add -36 to both sides-----> 2x+36+-36=-3y+-36

Last step you have to divide both sides by 2

So that would be----> 2x/2= -3y-3

**Your final result will be----> x=-3/2y-18**

I hope this helped you out (:::::::

I don't get how to do this. Can any one help?

f(2) if f(x)=2x-5

### Answers

**Answer:**

-1

**Step-by-step explanation:**

Plug 2 into x.

Plugging x=2 in 2x-5, 2(2)-5 => 4-5=-1

Hope I helped!

**Answer:**

It’s 4 darlin

What are -a like terms?

### Answers

**Answer:**

-2a, -7a

**Step-by-step explanation:**

**Answer:**

Terms whose variables (such as x or y) with any exponents (such as the 2 in x2) are the same. Examples: 7x and 2x are like terms because they are both "x".

**Step-by-step explanation:**

In other words, terms that are "like" each other.

Note: the coefficients (the numbers you multiply by, such as "5" in 5x) can be different.

A common scale for do-it-yourself airplane models is 1:48. The F-117A Stealth Fighter is 63 feet, 9 inches long. To the nearest inch, how long would the model of this plane be?

### Answers

Answer:

15 feets, 11.25 inches

Step-by-step explanation:

Given that:

Scale = 1 : 48

Thus means that the model is 1/48 the actual size of the jet

Length of fighter jet = 63feets, 9 inches

Converting the entire length to inches

1 feet = 12 inches

63 feets = (12 * 63) = 756

Lenght of jet = (756 + 9) = 765 inches

1/48 * 765 = 15.9375 ; 15 feets, 11.25 inches

Hence, length of model = 15 feets, 11.25 inches

90% of what equals 81?? Please show how you got the answer!!

### Answers

0.9x = 81

x = 81/0.9 = 90

the answer is 90

**Answer:**

**90**

**Step-by-step explanation:**

First you want to divide 81 by 90%. You do this because 81 is the number you have and 90 is the percent you have.

81/90% = 90

Doing this will get you 90. This works for all percentages too.

Also you can check your answer by reversing this.

90 × 90% = 81

When I add 4 to 3 times my number I get 28.

### Answers

**Answer:**

**Step-by-step explanation:**

**the equation is**

**4+3x=28 where x is unknown**

**-4 -4 subtract 4 from both sides**

**3x=24**

**divide 3 from both sides**

**x=8**

2. Which of the following expressions is correctly written in scientific notation?

A. 12.8 x 107

B. 0.42 x 10-3

C. 5.29 x 10-5

D. 2.964

### Answers

I think it’s D hope it’s right

the following **expressions** is correctly written in scientific **notation**

is, D. 2.964.

What is an expression?

An **expression** is any mathematical statement which consists of numbers, variables and an arithmetic operation between them.

here, we have,

the following **expressions** is correctly written in scientific **notation**

is, D. 2.964.

To learn more on **Expression** click:

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Need help quick all things algebra unit 8

### Answers

**Answer:**

#5 is X=63.5

#6 is X=32.9

**Step-by-step explanation:**

i hope it helps

have a nice day ^_^

can someone help me with this

### Answers

**Answer:**

i cant see the pic please send a better one and i reloaded it and it still does not work

**Step-by-step explanation:**

Slope of the line represented by the equation y=4/5 times -3

### Answers

**Answer:**

The slope of the line=4/5

**Step-by-step explanation:**

**The formula y=mx + b is set up in slope-intercept form, where m=slope and b=y-intercept**

y=mx + b

b= -3

m= 4/5

Note: b can be negative or positive

Therefore, the slope=4/5

What is the equation of the line that passes through the point (-4, 7) and has an

undefined slope?

### Answers

**Answer:**

x = -4

**Step-by-step explanation:**

Since the slope is undefined, the line is a vertical line. All vertical lines have an equation x = k. In your problem k = -4, so the equation of the line is x = -4

The graph below shows how much money a pop singer makes given the total amount of money

brought in by one popular online music store from sales of the song.

$250.00

($1000, $200)

$200.00

Paid to Pop Star

$150.00

($600, $120)

$100.00

$50.00

($200, $40)

$400.00

50.00

$0.00

$200.00

$600.00 $800.00

$1,000.00 $1,200.00

Sales by an Online Music Store

What is the constant of proportionality between dollars earned by the pop singer and dollars

brought in by sales of the song?

A. 5

B. 1/5

C.4

O D. 1/4

no it’s

### Answers

Answer:

The answer is A because you have to divide each of the two number on the plot

Step-by-step explanation:

If AB = 17 and AC = 32, find the length of BC.

### Answers

**Answer:**

would be B because 49 can be around the BC and it is around in the middle of B and C.

**Answer:**

c. 15

**Step-by-step explanation:**

Given

AB = 17

AC = 32

Now length of BC

= 32 - 17

= 15

In ΔVWX, v = 17 inches, w = 63 inches and ∠X=146°. Find the length of x, to the nearest inch.

### Answers

**Answer:**

78

**Step-by-step explanation:**

The **length **of the **side **x will be equal to 543.74.

What is geometry?

**Geometry **is one of the oldest branches of **mathematics**, along with arithmetic. It is concerned with spatial **properties **such as figure distance, shape, size, and relative position.

Given that in ΔVWX, v = 17 inches, w = 63 inches and ∠X=146°. The value of x will be **calculated **by the cosine **formula**,

x² = w² + v² - 2vwcosx

Substitute the **values **in the formula above and **solve **for the value of x,

x² = w² + v² - 2vwcosx

x² = 63² + 17² - ( 2 x 63 x 17 x cos146 )

x² = 4258 - (-1775.8)

x² = 6033.8

x = √6033.8

x = 543.74

To know more about **geometry **follow

https://brainly.com/question/27148225

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What property would you use to solve for x?

(3x +60)

### Answers

Multiplication, Division, and addition

Last week Jessica beat Emily at checkers in 20% of their matches Emily won 12 matches how many matches did Jessica win

### Answers

**Given:**

Last week Jessica beat Emily at checkers in 20% of their matches.

Emily won 12 matches.

**To find:**

Number of matches Jessica win.

**Solution:**

Let x be the total number of matches.

Jessica won = 20% of x

= [tex]\dfrac{20}{100}x[/tex]

= [tex]0.2x[/tex]

Emily won 12 matches. So, the total matches is equal to the sum of their matches.

[tex]0.2x+12=x[/tex]

[tex]12=x-0.2x[/tex]

[tex]12=0.8x[/tex]

[tex]\dfrac{12}{0.8}=x[/tex]

[tex]15=x[/tex]

Total number of matches is 15. So, number of matches won by Jessica is:

[tex]0.2(15)=3[/tex]

**Therefore, Jessica won 3 matches.**

Solve for Angles X&Y.

mPLS HELP AND SHOW UR WORK. WILL GIVE BRAINLIEST!

### Answers

**Answer:**

x=68 y=112

**Step-by-step explanation:**

to find the total amount of degrees in this polygon, use the equation

(n-2)x180, where n is the amount of sides the shape has.

(8-2)x180=6x180=1080 degrees in total

take this number and subtract each of the interior angles in order to find the leftover degree for the y angle.

1080-100-172-108-150-111-162-165=112

y=112

to find x, you can see that y and x are supplementary angles, meaning that their sum is 180. subtract 180 and 112 to find the value of x.

180-112=68

x=68

hope this helps!

**Answer:**

y = 112 and x = 68

**Step-by-step explanation:**

the above figure is of irregular octagon.

the sum of interior angles of an octagon is 1080 degrees.

therefore, y + 150 + 111 + 162 + 165 + 100 + 172 + 108 + 150 = 1080 degrees.

y = 1080 - 150 + 111+ 162 + 165 + 100 + 172 + 108 + 150

y = 112 degrees. ( by calculations)

angles x and y a are in linear pairs.

therefore, x + y = 180 degrees

therefore by substituting y = 112 we get

x + 112 = 180

x = 180 - 112

x = 68 degrees.

What is the value of x?

46

The value of x is

### Answers

the answer is 67 because a triangle is 180 degrees. First you subtract 46 from 180 which gives you 134 and since it show that both sides are the same you divide 134 by 2 and get 67

180-46= 134 divided by 2= 67