Mathematics Middle School

An electric toothbrush costs $56, including a 40% price markup. What was the cost for the store to purchase the electric toothbrush?
$22.40
$30.00
$40.00
$64.80
pls hurry istg

Answers

Answer 1
40 dollars my dude I’m pretty sure
Answer 2

22.40

$56 x .4 = $22.40

Related Questions

Write 2^60 as a power with this base. 32

Answers

Step-by-step explanation:

Write 2^60 as an exponent with a base of: a) 8. b) 16. c) 32. the answer is : 8^20 (eight to the twentieth power). heart outlined. Thanks 2.

2x2x2x2x2 or 2^5 equals 32, you divide 60 by 5 to get 12, so your answer is 32^12

2^5=32 60/5=12

A 22-m by 14-m rectangular yard is to be seeded. Each bag of seed covers 18m². How many bags of seed are need?

Answers

ANSWER!!

18 bags!!

EXPLANATION!!

You need to find out how big the backyard is first by multiplying both lengths.

22•14=308

Knowing a bag covers 18m we need to divide.

308/18=17.1111

It asks for how many bags are needed, this is a real world situation so you need to round up to the nearest whole number so you would get 18!
18 bagsssssssssssssssss

PLS HELP EXAM




a) -2 = y + 5





c) –2x + 3x – 5 = 6 – 21





e) 4 – 14 = 5x





g) –42 + 20 = –2x + 13x






i) 7 = y – 2



k) –4 – 10 = 4y + 3y




m) 3y = –18

Answers

Answer:

a: y = - 7

c: x = -10

e: x = 2

g: x = -2

i: y = 9

k: y = -2

m: y = -6

Step-by-step explanation:

a: Subtract 5 on both sides

c: Add 5 on both sides then combine like terms

e: Combine like terms then divide by 5

g: Combine like terms then divide by 11

i: Add 2 on both sides

k: Combine like terms then divide by 7

m: Divide by three(won't add the number for some reason)

A: y=-7
C: x=-10
E: x=-2
G: x=-2
I: y=9
K: y=-2
M: y=-6

Susan has 7 chores, and she can do them in any order. Use the fundamental counting principle to find the number of different ways she can complete her chores.


EXPLAIN

Answers

Answer:  5040

Explanation:

There are 7 choices for the first slot, then 6 for the second, 5 for the third, and so on until we get down to 1 choice for the last slot

7*6*5*4*3*2*1 = 5040 different ways to do those seven chores where order matters.

For more information, check out the concept of factorials.

5040
There is any easy way to do this if there is a smaller amount of variables and it’s like this: (see picture)

Paul drinks 51.15 fluid ounces of water per day. How much water does he drink in 4 days?
A. 55.15 fluid ounces
B. 204.6 fluid ounces
C. 153.45 fluid ounces
D. 255.75 fluid ounces

Answers

51.15x4 = 204.6 fluid ounces

Answer: 204.6 fluid ounces

Step-by-step explanation:

51.15x4=204.6

What is the slope of the points that go through (2,4) and (4, 8) please help

Answers

[tex](\stackrel{x_1}{2}~,~\stackrel{y_1}{4})\qquad (\stackrel{x_2}{4}~,~\stackrel{y_2}{8}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{8}-\stackrel{y1}{4}}}{\underset{run} {\underset{x_2}{4}-\underset{x_1}{2}}} \implies \cfrac{4}{2}\implies \text{\LARGE 2}[/tex]

Slope= (y2-y1) / (x2-x1)
= (8-4)/(4-2)
=2

What is the value of this expression? 17/21 + 1/3 - 5/7 Enter your answer in the box as a fraction in simplest from

Answers

Answer:

17+7-15/21

-1/21 is your answer in simplest form

Answer: 17+7-15/21

-1/21 is your answer

Step-by-step explanation:

Help me, please i really need help

Answers

Answer: Second one
Explanation: count the numbers that fit into each category and then count the Xs.
the third one is correct i think

Make x the subject of the formula
y/x= abc

Answers

Answer:

x=y/abc

Step-by-step explanation:

Let's solve for x.

y/x=abc

Step 1: Multiply both sides by x.

y=abcx

Step 2: Flip the equation.

abcx=y

Step 3: Divide both sides by abc.

abcx/abc=y/abc

x=y/abc

Answer:

x=y/abc

Step-by-step explanation:

In order to make x the subject:

Isolate the variable by: ...

Rearrange the equation so each term containing x is on the same side of the =.

Factorisation may be needed if there are multiple terms containing x . ...

Perform an operation to ensure only a single x variable is left as the subject.

Susan is taking an Algebra test on functions. Question 10 shows the following list of ordered pairs:

{(–5, 7), (–2, 1), (0, 3), (4, 7)}

Which choice should best explain why the relation IS or IS NOT a function?

Question 2 options:

a function; only one range value exists for each domain value


a function; two domain values exist for range value 7


not a function; the relation does not pass the horizontal line test when all points are graphed


not a function, two domain values exist for range value 7

Answers

Answer: 1.  a function; only one rage value exists for each domain value

2.    (-5, 7) , ( -2 ,1)   In mathematics, a function is a relation that associates each element of a set (the domain) with a single element of another  .In this case 2 elements are smaller than 0 and 2 are bigger than 0

Step-by-step explanation:

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