Mathematics High School

Pens and Pencils
Mrs. Charles ordered 150 pencils and 225 pens for the academy store. The pens cost 15 cents more than the pencils. Mrs. Charles’ total order was $135. Mrs. Charles was quite surprised by this amount as she thought the total would be $120.

If the cost of one pencil and one pen is 69 cents, who do you think is right, the supplier or Mrs. Charles? Support your answer with

mathematical evidence.

What is the cost of each pencil? Each pen? Support your answer with mathematical evidence.

Answers

Answer 1
Pen=x
Pencil=y
y+0.15=x
y+x=0.69
y+y+0.15=0.69
2y=0.69-0.15
2y=0.54
y=0.54/2
y=0.27 pencils
y+0.15=x
0.27+0.15=x
0x=0.42 pen
150 pencils x0.27=40.5$
225 pens x 0.42=94.5$
Total 40.5$ + 94.50$=135 $
Supplier is right about a priče.

Related Questions

Give the y-interecept
3x + y = 5
(Remember that to find the y-intercept, you need to make the x value a 0.)
(-3, 0)
(-3, 3)
(0, 5)
(5, 0)

Answers

Answer:

(0, 5)

Step-by-step explanation:

3x + y = 5

Plug x = 0

3*0 + y = 5

0 + y = 5

y = 5

y-intercept = (0, 5)

Use the distributive property to write equivalent expression 3(2 times +6)

Answers

Answer:

6 *18

Step-by-step explanation:

MORE KHAN ACADEMY! HELP ME PLEASE!

6/3+(-1/6)=?

Answers

Answer:

[tex]1\frac{5}{6}[/tex]

Step-by-step explanation:

6/3 + (-1/6) = 2 + (-1/6) = 2 - 1/6 = [tex]1\frac{5}{6}[/tex]

Answer:

If these are fractions the answer is 1 5/6

If they are not fractions the answer is 1.83

How do you write 35/5 as a percentage

Answers

Answer:

700%

Step-by-step explanation:

35/5=7

7.00

35/5 as a percentage is 700%

1) Calculate fraction's value.

2) Multiply that number by 100.

3) Add the percent sign % to it.

7 × 100/100 =

(7 × 100)/100 =

700/100 =

700%

X-2– 2x = [?]x + [ ]

Answers

Answer:

-1x + (-2)

Step-by-step explanation:

1) do x - 2x which you get -1x

2) since there's an addition sign, you put in -2 not 2, since there's no subtraction sign b4 the number.

The answer is -1x-2!!!

Irene has a spinner with 5 sections, each with a different color. Irene spins the spinner many times, and records the results in the table.

Color: Red Orange Yellow Green Blue
Frequency: 16 11 9 14 10


Find the probability of spinning each color, based on the data. Explain how you calculated each probability.

Answers

Step-by-step explanation:

Probability of spinning a specific colour is the frequency of the colour divided by the total frequency.

Total frequency = 16 + 11 + 9 + 14 + 10 = 60

Hence we have the following probabilities:

P(Red) = 16/60 = 4/15P(Orange) = 11/60P(Yellow) = 9/60 = 3/20P(Green) = 14/60 = 7/30P(Blue) = 10/60 = 1/6

What is the next number in this sequence?  0.03,  0.12,  0.48,  1.92,  __________​

Answers

Answer:

the next number in the sequence would be 7.68

Step-by-step explanation:

you are multiplying by 4. 0.03 multiplied by 4 equals 0.12, and so on.

help me with this question

Answers

Answer:

5

Step-by-step explanation:

The answer would be 5.

PLEASE PLEASE HELP!!!!


Which of the following organ systems is paired correctly with its function?

A.) digestive system: exchanges gasses with the environment
B.) skeletal system: moves oxygen and nutrients throughout the body
C.) excretory system: rids the body of waste
D.) nervous system: secretes hormones that regulate activities

Answers

Answer:

this shouldnt be in math but the answer is c

Step-by-step explanation:

Which phrases could n + 10 represent? Check all that apply.

Answers

Answer: 1,3,5

Step-by-step explanation: 1. the sum of a number , 2. A number plus ten, 5. Ten more then a number

Edge 2021

3.8x=2.736
what is x?​

Answers

Answer:

x = 0.72

Step-by-step explanation:

Given

3.8x = 2.736 ( divide both sides by 3.8 )

x = 0.72

Answer:

x = .72

Step-by-step explanation:

2.736 ÷ 3.8 = .72

3.8(.72) = 2.736

good luck, i hope this helps :)

1 52/100 as a mixed number in decimal form

Answers

Answer:

I'm pretty sure its 1.52

1.52 would be your answer!!

Tony made a scale drawing of his living room. The scale drawing has a length of 5 inches and a width of 3 inches. If the living room has an actual length of 12 feet, which equation could be used to determine w, the width of the living room?

Answers

Answer:5w=36

Step-by-step explanation:

What is the value of p?

Answers

Answer:

[tex]22\sqrt{2}[/tex]

Step-by-step explanation:

This is a 45-45-90 triangle and the side lengths are in the ratio [tex]p : p : p\sqrt{2}[/tex]. Given that the hypotenuse is [tex]44[/tex], [tex]p\sqrt{2} = 44[/tex] and [tex]p = 22\sqrt{2}[/tex].

b the answer is b i have to keep writing but i think it’s b


Latoya made $147 for 7 hours of work.
At the same rate, how much would she make for 9 hours of work?

help pls


Answers

Answer:

$189 in 9 hrs

Step-by-step explanation:

Division is one of the four fundamental arithmetic operations. The amount that Latoya will make by working 9 hours is $189.

What is Division?

The division is one of the four fundamental arithmetic operations, which tells us how the numbers are combined to form a new one.

Given that Latoya made $147 for 7 hours of work. Therefore, we can write,

Money made in an hour = Total Amount / Number of hours

                                         = $147 / 7 hours

                                         = $21 per hour

Now, the amount that Latoya will make in 9 hours will be,

Amount for 9 hours of work = Money made in an hour × Number of hours

                                              = $21 per hour × 9 hours

                                              = $189

Hence, the amount that Latoya will make by working 9 hours is $189.

Learn more about Division here:

https://brainly.com/question/369266

#SPJ2

ABC is a straight line.
А
B
С
The length of AB is four times the length of BC.
AC = 75 cm.
Work out the length of AB.

Answers

Answer:

Let length of bc be x cm

Thus, ab=4x

ab+bc=ac

4x+x=75

5x=75

x=75/5

x=15

Therefore, ab=x=15cm

bc=4x=60cm

Step-by-step explanation:

abcdefghijklmnopqrstuvwxyz??

Answers

Answer:

Answer:

Step-by-step explanation:

Nice dog!

Have a great day!

very good boy/girl :)

John receives $9,500 per month after tax. If his annual gross salary is $120,000, How much does he pay in tax per year?

Answers

John pays $6000 a year in taxes

Hope this helpfully......

but if it's not,im so sorry

somebody help me please

Answers

Answer:

choice 2:    reflection. flipped over y axis

Step-by-step explanation:

Please help I have 5 minutes will mark a Brilliant

Answers

y=20x+120 is the answer

Answer:

The answer is the Y= 20x + 120

Step-by-step explanation:

Hope that helps! If you need step by step lmk!

What is 5944.1 to the nearest 10

Answers

Answer:

if you mean to the tens place, then its 5,940

Step-by-step explanation:

Answer:

5940

Step-by-step explanation:

please help i’m trying to get my math grade up lol

Answers

Answer:

a)

Step-by-step explanation:

2(6x)=12x

2(5x)=10x

=22x

2(-4)=-8

22x-8

2 (6x - 4 + 5x)
= (2)(6x - 4 + 5x)
= (2)(6x) + (2)(-4) + (2)(5x)
= 12x - 8 + 10x
= 22x - 8
So The Answer Is 22x - 8

Hope This Helped You.

8.
A taxi company charges passengers $1.75 for a ride, no matter how long the ride is, and an additional $0.40 for each mile traveled. The rule c = 0.40m + 1.75 describes the relationship between the number of miles m and the total cost of the ride c.
a. What is the charge for a 1-mile ride?
b. What is the charge for a 2.7-mile ride?


A. $2.15; $2.83


B. $0.40; $5.13


C. $0.40; $1.08


D. $1.75; $2.15

Answers

Answer:

A. $2.15; $2.83

Step-by-step explanation:

2.83

c = 0.4. * 2.7 + 1.75

=> c = 2.83

4(2.7)+1.75

1.08+1.75=2.83

$2.83 is correct.

c=0.40(2.7)+1.75

c=1.08+1.75

c=2.83

Answer:

2.83 dollars

Step-by-step explanation:

Fixed charges made by the taxi company for a ride =  

Additional charge for each mile travelled =  

Hence equation for cost is given by

where m is thenumber of miles travelled.

To find out the charge for a 2.7 mile ride substitute m = 2.7

Total cost for 2.7 mile ride is 2.83 dollars

Answer: A

Step-by-step explanation:

please help me with this question
8x +3=8x +27

Answers

I don’t quite understand

The statement is false

8x +3=8x +27
Cancel the like terms(8x)

So then it would be:
3= 27 which is false.

10% more than a number is 132
What is the number?

Answers

The number is 120.

1.1x = 132
x = 120

10% = 0.1 in decimal form. We’re looking for a number that when you take 10% of it & add it to itself (1.0) we get 132. Adding it to itself is why the first term is 1.1x

Let me know if you have questions. It took me a while to understand this at first.

Write an equation of the line that passes through (–5, 1) and (7, 1)

Answers

i think it’d be y = x + 1

Solve the inequality.
x + 7 > 18
The solution is __.
Graph the solution.

Answers

Answer:

7+18=25 that's the answer

Y=10m+2 plotted on a graph.

Answers

The first point would be at (0,2). Then you would have to go up 10 units, and then 1 to the right. When there is no no space to graph, you extend downwards from (0,2). So you would go down 10 units, and to the left 1 unit.

2.
What is the slope of the line whose equation is
y = 2x - 102
A
B. 2
C. 5
D. - 10

Answers

Answer:

2

Step-by-step explanation:

y=mx + b where m is the slope.

m = 2 in this instance.

So the slope is 2.

Answer: btw is B

Step-by-step explanation:

Is this a linear function
X
0
1
2
3
Y
1
2
5
10

Answers

Answer:

Yes!

Step-by-step explanation:

Because, x-intercepts are not being repeated and pass the vertical line test.

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