how does the percent equation help solve markup problems i will mark brainliest

Answer:

n = number of nickels

2n = number of dimes

n($0.05) + 2n($0.10) = $2.25

0.05n + 0.2n = 2.25

0.25n = 2.25

n = 2.25/0.25 = 9

2n = 2(9) = 18

You has 9 nickels and 18 dimes

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Basically, both have a helmet rate of $5/hr. So,

300 +5x and 25x+5x = 30x

The questions specifically wants the purchasing to be lower.

Answer:

The side length is 62 meters

Step-by-step explanation:

The area of a square is given by

A = s^2  where s is the side length

3844 m^2 = s^2

Take the square root of each side

sqrt( 3844 m^2) = sqrt(s^2)

62 m= s

The side length is 62 meters

Answer:

Step-by-step explanation:

For example if you have a function f(x) = x - 1, then x = 1 is a zero of this function because using it as x gives 1 - 1 = 0. The Riemann Zeta function has some zeros that are easy to find which are of little interest but there are some other ones that are harder to find which is why the are called non-trivial.

Answer: the answer is true I think

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

because all the other ones are facts

Step-by-step explanation:

43%=43/100

21/2%=1050

13.6%=136/100

521%=521/100

Answer:

402007/249480

Step-by-step explanation:

or decimal form: 1.61137966

Answer:

its cartesian Product of XY * YZ is {{5x,X}}

its cartesian Product of YZ * XY is {{x,5X}}

need it in a diffrent form? just ask

I hope this helps

if you could, feel free to mark me Brainliest it would be much appreciated :D

Answer:

Lithosphere.

Step-by-step explanation:

Lithosphere is known for being the Earth's sphere ehre all rocks and types of land are included. Therefore, if land constitutes over 99% of the Earth's actual mass, then the statement is refering to the Lithosphere.

In this question, you are asked to specify the sphere of the earth described in the sentence

The sphere of the earth described in the sentence is lithosphere.

Read more:

https://brainly.com/question/10893109

Answer:

49.680

Step-by-step explanation:

the tenth is not small

The  example of the identity property of 0 will be 0 + (–7 5/6) = –7 5/6. Then the correct option is C.

According to the identity property of addition, any value is that summation of 0 and any other value.

a + 0 = a

The  example of the identity property of 0 will be

0 + (–7 5/6) = –7 5/6

Then the correct option is C.

More about the identity property of addition link is given below.

https://brainly.com/question/1709448

#SPJ2

Answer:

I think it's {3, 6, 12, 18}

Step-by-step explanation:

Domain: all x-values that are to be used (independent values).

Answer:10a

Step-by-step explanation:

Since both terms are perfect squares, factor using the difference of squares formula,

a

2

−

b

2

=

(

a

+

b

)

(

a

−

b

)

where

a

=

9

and

b

=

10

a

.

(

9

+

10

a

)

(

9

−

10

a

)

Answer:

30

Step-by-step explanation:

Answer:

there right

Step-by-step explanation:

90+7s = 120 + 4s

11s = 210

Answer:

A bag contains 8 red marbles, 3 blue marbles and 7 green marbles.

Total = 18 marbles.

Probability of drawing three red marbles = probability of drawing one red without replacement + probab of drawing another without reeplacement + probab of drawing a third without replacement.

Probability of drawing three red marbles = 8/18 + 7/17 + 6/16 = 0.4444 + 0.4118 + 0.3750 = 1.2312.

Answer:

0.043

Step-by-step explanation:

Answer:

$94

Step-by-step explanation:

8x + 10x =  y

8 (3) + 10 (7) = y

24 + 70 = y

94 = y

Answer with step-by-step explanation:

If he were to work a full week, then 3 hours babysitting × 7 days a week × $8 for work = $168 for babysitting. 7 hours lifeguarding × 7 days a week × $10 for work = $490 for lifeguarding.

The total amount of money that Elijah would earn is $168 + $490 = $658

Hope this helped! (brainliest please)

Answer: 15 + (-35) = -20

Step-by-step explanation: This is the addition equation for your question.

Answer:

15 plus -15 plus -20

Step-by-step explanation:

15 plus -15 equals zero, when we add a the a negative and a positive of the same number it's a zero. And I add -20 to go down instead of subtracting.

~~Hope this helps~~~ :)

Answer:

What are you asking? What does it equal? W+2792=??

Answer:

there is no number that could fit, it actually could be anything, I think that there is a part of the problem not there that is a expression to solve that you need a equation

Step-by-step explanation:

Answer:

CED is a right angle, CEB=AEB

hopw that helps

Answer:

1st, 2nd, 5th

Step-by-step explanation:

Answer:

-1

Step-by-step explanation:

100x=200-300

100x=-100

100x/100=-100/100

x=-1

After solving this equation we get, 100x + 300 = 200 x = -1.

To solve this equation

100x + 300 = 200,

Subtract 300 on both side,

100x + 300 - 300 = 200 - 300

100x = -100

Divide 100 on both side,

x = -1

Therefore, After solving this equation 100x + 300 = 200 we get x = -1.

Learn more about How to solve equation here;

https://brainly.com/question/13594275

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Answer:

6y+4

Step-by-step explanation:

-(2x-3y) +5x +2 -3x +3y +2

(-2x -3x +5x) (3y +3y)  (2 +2)

0 +6y +4

6y +4

Answer:

D. [tex] l = \frac{P - 2w}{2} [/tex]

Step-by-step explanation:

Given:

[tex] P = 2l + 2w [/tex]

Required:

Solve for l

Solution:

To solve for l, we would make l the subject of the given formula.

[tex] P = 2l + 2w [/tex]

[tex] P = 2(l + w) [/tex]

Divide both sides by 2

[tex] \frac{P}{2} = \frac{2(l + w)}{2} [/tex]

[tex] \frac{P}{2} = l + w [/tex]

Subtract w from both sides

[tex] \frac{P}{2} - w = l + w - w [/tex]

[tex] \frac{P}{2} - w = l [/tex]

[tex] \frac{P}{2} - \frac{w}{1} = l [/tex]

[tex] \frac{P - 2w}{2} = l [/tex]

Rewrite

[tex] l = \frac{P - 2w}{2} [/tex]

Answer:

What is the question?

Step-by-step explanation:

Deposit means add so he added $450 to his bank account

Answer:

A. $482.20

Step-by-step explanation:

All amounts shown are deductions, so add all amounts.

$180.00 + $25.00 + $200.20 + $77.00 = $482.20

Answer: $482.20