Mathematics High School

Jin bought 4 markers for $7. How many markers can he buy
for $21? Show your work.

Jin Bought 4 Markers For $7. How Many Markers Can He Buy For $21? Show Your Work.

Answers

Answer 1

Answer:

12

Step-by-step explanation:

7 times 3 is 21

and 4 times 3 is 12

Answer 2

Answer:

12

Step-by-step explanation:

first do 7 divided by 4 to find what 1 is worth. this answer is 1.75

now divide 21 by 1.75 to get 12

12 is your answer

hope this helped :)

Related Questions

The two triangles are similar, What is the length of DE?

Answers

Answer:

This is easy. All you need to do is set up a proportional relationship.

A proportional relationship uses variables to show similarities, in this case, in triangles.

[tex]\frac{2}{3} = \frac{x}{6.3}\\\\3x = 12.6\\\\x = 4.2[/tex]

x represents the missing side.

What value of x makes this equation true?
x/3 - 3 = x/9 + 3

Answers

Answer:

x = 27

Step-by-step explanation:

hope this helps :)

PLEASE HELP ;)
Who did it right?

Find the slope of the line perpendicular to 2x+3y=8

Answers

Answer:

Marissa.

Step-by-step explanation:

To find perpendicular slope you basically take the slope of the given line and reverse whatever sign it had previously. (If it was negative, it would become positive. If it was positive it would become negative.)

By doing -A/B it make the previous slope negative.

Brandon only flipped the fraction which would just result in the slope being slightly steeper, or in this case, less steep than the previous line, rather than making it perpendicular.

Hope this helps! Stay safe and if you have any questions feel free to ask!

y - 3 = -2 ( x + 5 ) in standard form

Answers

Answer:

2x + y = -7

Step-by-step explanation:

Standard form is Ax + By = C

A represents the coefficient with x

B represents the coefficient with y

C represents the constants

1 - Rewrite to make it easier to work it out

y - 3 = -2 ( x + 5 )

2 - Distribute

y - 3 = -2x - 10

3 - Get the variables on one side and the constants on the other

y - 3 = -2x - 10

+ 2x  + 2x

2x + y - 3 = -10

         + 3   + 3

2x + y = -7

Hope this helps,

which number is bigger 1.59 or 1.955

Answers

Answer:

1.955 is bigger

Step-by-step explanation:

1.955>1.59

Answer:

1.955

Step-by-step explanation:

This is because the number after the decimal in 1.955 is 9, which is bigger than the 5 shown in 1.59

a computer backs up 324 megabytes of data in 5 minutes. WRITE AN EQUATION that represents the number of megabytes, m, that can be backed up in (t) minutes.

Answers

Answer:

64.8 x t = m

Step-by-step explanation:

324 / 5 = 64.8       :64.8 megabytes are produced every 1 minute

64.8 x t = m  

The answer is 64.8xt

Section 1 - Question 1 Consider these six expressions. Expression A Expression B Expression C (−5)(−0.4)(1.8) (-45)(-19)(-112) −1(5+17) Expression D Expression E Expression F (−5)(−0.4)(1.8)(−3.25) (-49)(-34)(-12)(-12) −1(3.5−7) How many expressions will have a product that is positive? A 2 B 3 C 4 D 5 q-q help me this is confusing

Answers

Answer:

B 3

Step-by-step explanation:

Given

[tex]Expression\ A: (-5)(-0.4)(1.8)[/tex]

[tex]Expression\ B: (-45)(-19)(-112)[/tex]

[tex]Expression\ C: -1(5+17)[/tex]

[tex]Expression\ D: (-5)(-0.4)(1.8)(-3.25)[/tex]

[tex]Expression\ E: (-49)(-34)(-12)(-12)[/tex]

[tex]Expression\ F: -1(3.5-7)[/tex]

Required

How many of them will have a positive result

Taking the expressions one after the other:

[tex]Expression\ A: (-5)(-0.4)(1.8)[/tex]

Convert brackets to multiplication

[tex]Expression\ A: -5*-0.4*1.8[/tex]

[tex]Expression\ A: 3.6[/tex]

This has a positive product

[tex]Expression\ B: (-45)(-19)(-112)[/tex]

Convert brackets to multiplication

[tex]Expression\ B: -45*-19*-112[/tex]

[tex]Expression\ B: -95760[/tex]

This has a negative product

[tex]Expression\ C: -1(5+17)[/tex]

Solve the expression in bracket

[tex]Expression\ C: -1 *22[/tex]

[tex]Expression\ C: -22[/tex]

This has a negative product

[tex]Expression\ D: (-5)(-0.4)(1.8)(-3.25)[/tex]

Convert brackets to multiplication

[tex]Expression\ D: -5*-0.4*1.8*-3.25[/tex]

[tex]Expression\ D: -11.7[/tex]

This has a negative product

[tex]Expression\ E: (-49)(-34)(-12)(-12)[/tex]

Convert brackets to multiplication

[tex]Expression\ E: -49*-34*-12*-12[/tex]

[tex]Expression\ E: 239904[/tex]

This has a positive product

[tex]Expression\ F: -1(3.5-7)[/tex]

Solve the expression in bracket

[tex]Expression\ F: -1*-3.5[/tex]

[tex]Expression\ F: 3.5[/tex]

This has a positive product

Expressions A, E and F have positive products. This implies that, there are 3 expressions with a positive product.

Help plzzz............​

Answers

Answer: See explanation below

Step-by-step explanation:

A composite number is a number that has factors other than 1 and self, while a prime number only can be divided by (or have factors of) 1 and itself.

Hope this helps! :)

Answer:

A prime number is a number that can be divided by itself or the number 1

Step-by-step explanation:

Not sure on the composite one tho

Please help, I will mark brainliest!

Answers

4
Put the smol 7 next to it !!

Write the vocabulary word for this definition:

The number of units or spaces away a number is from zero

Answers

Answer:

i am not sure but may be ...absolute value

2. Addison bought 9 pumpkin pies for $27. How much will she pay for 11 pumpkin pies? Use numbers and words to explain your answer.​

Answers

Answer:

$33

Step-by-step explanation:

Since 9 pies is 27 dollars that means you have to divide 27 by 9 to find out what 1 pie costs

1 pie ends cause costing $3

now you multiply the cost for 1 pie and 11 so it comes out to be $33

It is 33 doll hairs
Ksosksos

Anybody have Quora ٩(˘◡˘)۶

Answers

Answer:

What is Quora?

Step-by-step explanation:

Answer:

nope i've heard of it though! is it good?

help me graph this pls!
y=-(2)/(3)x+2

Answers

Answer:

You start at the Y Intercept of 2, then you go up 2 units, and to the left 3 units.  You will then make a line.

Step-by-step explanation:

Since it is not a negative slope, it will point to the top right corner.

HELP ME PLEASEEEEE
Kim has $250 to spend on a rental car for her trip. The rental car company charges a fee of $130 plus $0.10 per mile. Kim used the inequality to calculate the maximum number of miles, m, she could drive the rental car.


Which inequality expresses the maximum number of miles Kim can drive the car?
m < 3,800
m < 120
m < 380
m < 1,200

Answers

Answer:

m < 1,200

Step-by-step explanation:

250 - 130 = 120

120 / 0.10 = 1,200

Equation:   130+0.10m=250

Answer: 120

PLEASE HELP I AM BEHIND!!!!

If the solution to an equation is x = −5, what could the original equation be?

A. x + 3 = 8
B. x − 3 = 8
C. x + 8 = 3
C. x − 8 = 3

(sorry if this is easy for you, I'm bad at math.)

Answers

Answer:

The answer is c definitely

Answer:

C. x + 8 = 3

Step-by-step explanation:

x + 8 = 3

x + 8 - 8 = 3 - 8 ( so do the same thing you do on both the left and right side )

x = -5

So C is correct but you can always say 3 - 8 to figure out that the answer in c is the right one.

HOPE THIS HELPED

Help me pls what is the perpendicular line

Answers

Answer:

-2

Step-by-step explanation:

Find the area of the shaded region. Express your answer in terms of π.

Answers

Answer:

335.115

Step-by-step explanation:

First you find the area of the circles to do that you do pi times radius squared

For the top square do 3.14(pi)time 3²=28.26

For the middle square do 3.14 times 4.5²=63.585

For the bottom square do 3.14 times 6²=113.04

Now find the area of the entire thing do 18×12+9+6+3=18×30=540

Finally do 540-the area of the squares 28.26-63.585-113.04= 335.115

So the shaded region is 335.115

Hope this helps and have a great day!

A partial proof was constructed given that MNOP is a parallelogram.

Which statement should fill in the blank in the last line of the proof?

A. angle M is supplementary to angle O.


B. angle N is supplementary to angle P.


C. angle M is congruent to angle P


D. angle N is congruent to angle P.

Answers

Answer:

B

Step-by-step explanation:

B. angle N is supplementary to angle P

Answer:

B

Step-by-step explanation:

First person to say............what 88 x 5 equals gets Brainlyiest!


















































































answer: 420

Answers

Answer:440

Step-by-step explanation:

Determine the correct scientific notation form of the number. 627,000,000

Answers

Answer:

6.27 x 10 ^ 8

Step-by-step explanation:

A linear function contains the following points. What are the slope and y-intercept of this function?

Answers

Answer:

option B is the correct answer

Answer:

maybe try b

Step-by-step explanation:

Sarah uses long division to convert a rational number x/y to its decimal form. Which of the following statement cannot be true?

Answers

What’s the equation look like ?

Figure ABCD is transformed to figure A prime B prime C prime D prime, as shown:

A coordinate grid is shown from negative 5 to 0 to 5 on both x -and y-axes. A polygon ABCD has A at ordered pair 1, 3, B at ordered pair 3, 4, C at ordered pair 2, 1, D at ordered pair 1, 1. A polygon A prime B prime C prime D prime has A prime at ordered pair negative 3, 3, B prime at ordered pair negative 5, 4, C prime at ordered pair negative 4, 1, D prime at ordered pair negative 3, 1.

Which of the following sequences of transformations is used to obtain figure A prime B prime C prime D prime from figure ABCD?

A. Reflection about the x-axis followed by a translation to the right by 2 units
B. Reflection about the y-axis followed by a translation to the left by 2 units
C. Counterclockwise rotation by 90 degrees about the origin followed by a translation to the right by 2 units
D. Counterclockwise rotation by 90 degrees about the origin followed by a translation to the left by 2 units

Answers

Answer:

A

Step-by-step explanation:

I  took the test.

What is 125x9 + 64y12 written as a sum of cubes? (25x3)3 + (4y4)3 (5x3)3 + (16y4)3 (25x3)3 + (8y4)3 (5x3)3 + (4y4)3

Answers

Answer:

D

Step-by-step explanation:

on edge 2021

Andy spent $46.95 at the grocery store. The cashier gave him $2.97 in change from a $50 bill. How much change should the cashier have given Andy? A) $2.95 B) $3.00 09 $3.05 D $3.15​

Answers

The cashier should have given Andy back $3.05

so the answer is C-$3.05

The cashier should have given Andy back $3.05 if Andy spent $46.95 at the grocery store option (c) $3.05 is correct.

What is an arithmetic operation?

It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that is +, -, ×, and ÷.

It is given that:

Andy spent $46.95 at the grocery store. The cashier gave him $2.97 in change from a $50 bill.

Let x be the change the cashier should have given Andy.

x + 46.95 = 50

x = 50 - 46.95

x = $3.05

Thus, the cashier should have given Andy back $3.05 if Andy spent $46.95 at the grocery store option (c) $3.05 is correct.

Learn more about the arithmetic operation here:

brainly.com/question/20595275

#SPJ2

Will mark branilest!!

Answers

Answer:

B?

Step-by-step explanation:

(This is math. Is that question supposed to be math? I'm not sure)

which relation is a function pls help will give brainliest

Answers

Answer:

D it is....................

It’s the Letter D because, when using the vertical line test, nothing touches each line more than once. I have an example that I drew.

what is the quotient of 0.12/24.12

Answers

Answer:

0.00497512437

Step-by-step explanation:

but make sure to round it. it should be 0.005 rounded to the nearest thousandth place but make sure if im correct im not too sure.

I need help just say the answer that’s all I need

Answers

Step-by-step explanation:

sorry I m not able to understand the question thank you for extra points

A recipe used 1/2 cup of sour cream for every 1/4 teaspoon of salt. What is the unit rate of teaspoons of salt per cup of sour cream?​

Answers

Answer:

1/2 teaspoons of salt per cup of sour cream

Step-by-step explanation:

multiply 1/2 and 1/4 by 2 to get 1 and 1/2. Since the question is teaspoons of salt per cup of sour cream, flip the numbers to get 1/2 teaspoons of salt per 1 cup of sour cream.

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