Mathematics High School

i need help with this ASAP

Answers

Answer 1

Answer:

There are sixteen 15-cent stamps and eight 20-cent stamps.

Step-by-step explanation:

Stamp collector has:

15c stamps

20c stamps

Total value is $4

x($0.15) + y($0.20) = $4.00

The # of 15c stamps is 8 - than 3 * the # of 20c stamps; 15c = 8 - 3c

x = 3y - 8

(3y-8)(0.15)+y(0.20) = $4.00

0.45)y-1.20+(0.20)y = 4.00

(0.65)y-1.20 = 4.00

(0.65)y = 5.20

y = 8

x = 3(8)-8 = 16

There are sixteen 15-cent stamps and eight 20-cent stamps.

Check:

16($0.15)+8($0.20) = $2.40+$1.60 = $4.00

Related Questions

A tank is filling up with water at a rate of 3 gallons per minute. The tank already had 5 gallons in it before it started being filled. What is the starting amount of the water tank?

Answers

Answer:

5 gallons

Step-by-step explanation:

there were 5 gallons already in the tank before it started to get filled.

Hey! Could anyone solve this problem for me in a step-by-step explanation? If so, thank you! (ASAP!!)

Answers

Answer:

-8/15

that's it

Step-by-step explanation:

i cant explain

Answer:

option d

Step-by-step explanation:

[tex]\frac{4}{9}[/tex] ÷ [tex]-\frac{5}{6}[/tex]

take reciprocal of -5/6, [when you take reciprocal, the '÷' sign will become '×' sign]

⇒ [tex]\frac{4}{9}[/tex] × [tex]-\frac{6}{5}[/tex]

⇒ 4 × -6 / 9 × 5

⇒ [tex]-\frac{24}{45}[/tex]

⇒ [tex]-\frac{8}{15}[/tex]

therefore, option d is the correct option

He transformation function is (x, y) --> (x + 4, y - 2). The starting point is point A at (-5, 6). Step 1: A: (-5, 6) x: , y: Step 2: Substitute x and y into (x + 4, y - 2): ( + 4, - 2) Step 3: Do the math: Point A' is at ( , )

Answers

Given:

Rule of transformation is [tex](x,y)\to (x+4,y-2)[/tex].

Point = (-5,6)

To find:

The missing values in the given steps of transformation.

Solution:

Step 1: A: (-5, 6).

[tex]x:-5,y:6[/tex]

Step 2: Substitute x and y into [tex](x+4,y-2):[/tex]

[tex](-5+4,6-2)=(-1,4)[/tex]

Step 3: Do the math:

Point A' is at (-1 ,4 ).

Therefore, the coordinates of the point (-5,6) after the transformation are (-1,4).

Question - Which image shows a 90 degree clockwise rotation about the origin?

Can somebody help me with this. Will mark brainliest!

Answers

Answer:

Choice 1!

Step-by-step explanation:

find the difference of each number and 4. Complete the table to support your answers. The first example is provided. Number Subtraction Expression Addition Expression Answers 10 10 - 4 10 + (-4) 6 2 -4 -6 1

Answers

Answer:

Step-by-step explanation:

Just took the quiz

Andrew spent $45.45 on two shirts that were the same price and a pair of pants. If the pants were $16.99, how much was each shirt?

Answers

Answer:

22.72

Step-by-step explanation:

45.45 divided by 2 is 22.725

Answer:

$14.23

Step-by-step explanation:

$45.45 - $16.99 ( pants ) = $28.46

$28.46 / 2 (since 2 shirts)

$14.23 for both shirts!

A triangular bike path is exactly 9 miles long. If each of the three connecting paths is a whole-number of miles long, which could be the lengths of the paths?

Answers

Answer:

2 miles, 3 miles, 4 miles

Step-by-step explanation:

could yu PLZZZZZZ mark brainliest

Answer:

2 miles, 3 miles, 4 miles

x^2-4x+3=0 complete the square

Answers

Answer:

x^2-4x+3=0
Move the constant to the right
x^2-4x=-3
Add (4/2)^2 to both sides
x^2-4x+(4/2)^2=-3+(4/2)^2
Factor
(x-4/2)^2=1
Reduce the fraction
(x-2)^2=1

x=1

x=3

x1=1, x2=3

As per the quadratic equation, the given equation can be modified into (x - 2)² = 1. The value of x is 3, 1.

What is a quadratic equation?

A quadratic equation is an equation where the variable has the highest degree of 2. A quadratic equation might have more than one variable. However, the highest degree of any variable must be 2.

Given equation: x² - 4x + 3 = 0

⇒ x² - 4x + 3 + 1 = 1 (By adding 1 on either side)

⇒ x² - 4x + 4 = 1

⇒ x² - 2 × x × 2 + 2² = 1

⇒ (x - 2)² = 1

⇒ x - 2 = ±1

⇒ x = 3, 1

Learn more about a quadratic equation here: https://brainly.com/question/1603229

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According to a survey conducted by the Texas Free Press, 125 out of 500 people do not have internet access at their homes. What percent of the people surveyed do have internet access at their homes?

Answers

75%
500-125 is 375
375/500 gives 3/4 which is .75
move the decimal over to the right twice to get 75%

125 do not

375 have

500 is the total

500-125 =375

375/500

500 divided by 375 = 0.75

75%

5.
2) Which of the following are equivalent to
the ratio, "There are 6 brunettes for every 4
blondes"? CIRCLE ALL THAT APPLY.
A) 4:6
C) 3:2
B) 9:6
D) 2:3

Answers

Answer:

Step-by-step explanation:

divide them by 2 so you'll get the same answer

Consider the equation:
2x^2-20x=x^2-19

Answers

X equals 19 and x also equals 1 is the correct answer:)

What is the value of x?

4/5 x - 1/10 = 3/10
These are the answer choices.

1/4

8/25

2/5

1/2

Answers

Answer:

x=1/2

Step-by-step explanation:

4/5x-1/10=3/10

4/5x=2/5

x= 1/2.

Hope this helps :D

:((( please answer! Thanks.

Answers

Answer:

Step-by-step explanation:

71+43=114

180-114=66

Answer:

Step-by-step explanation:

The steps in solving 5b - 6 = 24 are:

Answers

Answer:

Step-by-step explanation:

5b-6=24
+6 +6
5b=30
\5 /5
B=6
I hope this helps! Comment if you need a better explaination

Can u help me with 5 6 7 and 8

Answers

Answer:

y/x

5. -6/1

6. 2/3

7. 2/16

8. -12/1

On a recent day eight-year-olds were worth $11 and €32 where where is $44. Enter an equation of the Fort on a recent day eight euros worth $11 and €32 were where is $44. Enter an equation of the form Y equals KX to show the relationship between the number of euros and the value in dollars. Let why is a value in dollars and XB the number of euros

Answers

Answer:

sry

Step-by-step explanation:

i am new to this

174 i think

Answer:

174

Step-by-step explanation:

catie charges an initial amount of $5 for babysitting and the $3 per hour. jolisa does not charge an initial amount but charges $4 per hour. write and solve an equation to find how many hours each girl sill have to babysit to earn the same amount.

Answers

Answer:

Step-by-step explanation:

5+3=8

8x4=32

4x8=32

.Which is larger? ½ of 280or⅜ of 400

Answers

Answer:

3/8 of 400

Step-by-step explanation:

3/8 of 400 is 150 while 1/2 of 280 is 140

a) Caesar, a leader of Rome, was born in 25 B.C.E. (before the year 0) and died in the
year 44. How old was he when he died?

Answers

Answer:

Step-by-step explanation:

hshshshhdhshshhshshsjjs

Which statement is correctly written as a conditional statement?

A) Any four-sided shape is a quadrilateral.
B) A shape has four sides when it is a quadrilateral.
C) If a shape has four sides, then it is a quadrilateral.
D) A shape has four sides, or it is a quadrilateral.

Answers

Answer:

Step-by-step explanation:

If a shape has four sides, then it is a quadrilateral.

If a shape has four sides, then it is a quadrilateral so option (C) will be correct.

What is quadrilatereal?

A quadrilateral is a geometrical 2d shape in which there are four sides and each side is connected and makes a close polygon.

In other meaning, a quadrilateral is a kind of polygon in which four sides for example rectangle, square, and parallelogram are quadrilateral.

a quadrilateral is a four-sided polygon, having four edges and four corners

A parallelogram is a basic quadrilateral with two sets of parallel sides.

The confronting or opposing sides and the opposing angles of a parallelogram are of equal length.

A quadrilateral is a quadrilateral because it has four sides not because it is quadrilateral so it has four sides.

For example, 4 sides are equal so the square is not due to the square all lines will same.

Hence If a shape has four sides, then it is a quadrilateral.

To learn more about quadrilateral,

https://brainly.com/question/13805601

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4) What type of angle pair are A. vertical angles
B. supplementary angles
C. adjacent angles
D. linear pair

Answers

Answer:

C. adjacent angles

Hope this helps also please mark brainliest :)

Ryan wrote a total of 8 pages over 2 hours. How many hours will Ryan have to spend writing
this week in order to have written a total of 48 pages? Assume the relationship is directly
proportional

Answers

Answer:

12 Hours

Step-by-step explanation:

So it says he writes 8 pages in 2 hours. Which would mean he takes an hour to write 4 pages. You divide 48 pages by 4 hours and you get 12.

Can anyone help me ?

Answers

Answer:

Step-by-step explanation:

The zero of a liner function is where it crosses the x-axis

1 !!

that’s where the line crosses !

PLSS HELP AND DON'T DO IT FOR THE POINTS AND THE FIRST PERSON TO HELP GETS BRAINLIEST

Answers

Answer:

okay I will do fast give me free points

anyone know how to do this?

Answers

The correct answer is option b or y=2x-3:)

Write the equation that models the linear relationship

Answers

Answer:

is it degrees

Step-by-step explanation:

x2 + 8x + 4 = 0

please help
Solve the quadratic equation

Answers

Answer:

Step-by-step explanation:

Answer:

x= -2/5 or - 0.4

Step-by-step explanation:

factor the expression 2.3 + 15 + 30
PLease please help idk how to do this

Answers

Answer: its 47.3

Step-by-step explanation: factor the polynomial

Answer: 47.3

simple addition

30+15=45

45+2.3=47.3

m^2= 100, n^2 = 400, k^2=1600. What is
the greatest value of 2m + 3n + 4k = ?
A) 270 B) 260 C) 250 D) 240

Answers

Answer:

D).

Step-by-step explanation:

usually you got = 2(10)+3(20)+4(40) =240

which expression is equivalent to 5(8 + 9)? HELP ASAP

A. 40+45
B. 13+9
C. 13+14
D. 40+9

Answers

The answer is A. 40+45 and here is the steps

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