Alexandra has 36 coins valued at $6.00. She has only nickels and quarters. Which equation can be used to solve for the number of nickels, n?

0.05n + 0.25(36 – n) = 6
0.05n + 0.25(36 – n) = 36
n + 0.05 = 0.05n
n + (36 – n) = 36

Answer:

-99.12525

Step-by-step explanation:

Answer:−  99.12525

Step-by-step explanation:

I multiplied it

Answer:

I believe its B or C

Step-by-step explanation:

Im sorry if its wrong, if its right can you mark me brainliest?

Answer:

2x +110= 180

2x=70

x=35

Step-by-step explanation:

Answer:

I don't get what your asking us to do

Step-by-step explanation:

The unit cost of one wing of chicken is: $38.40/24 = $1.6.

Unit cost can be defined as the cost of one unit of a quantity, that is, how much can by a unit measure of whatever is being sold.

To find the unit cost, divide the total cost over the number of unit items.

Cost of 24 chickens = $38.40

Unit cost = $38.40/24

Unit cost = $1.6.

Learn more about unit cost on:

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Answer:

x=4

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

the slope id going up at a rate of 3

Answer:k=−a3−a2b−36a−36b+217/a2+ab

Step-by-step explanation:Step 1: Flip the equation.

a3+a2b+a2k+abk+36a+36b=217

Step 2: Add -a^3 to both sides.

a3+a2b+a2k+abk+36a+36b+−a3=217+−a3

a2b+a2k+abk+36a+36b=−a3+217

Step 3: Add -a^2b to both sides.

a2b+a2k+abk+36a+36b+−a2b=−a3+217+−a2b

a2k+abk+36a+36b=−a3−a2b+217

Step 4: Add -36a to both sides.

a2k+abk+36a+36b+−36a=−a3−a2b+217+−36a

a2k+abk+36b=−a3−a2b−36a+217

Step 5: Add -36b to both sides.

a2k+abk+36b+−36b=−a3−a2b−36a+217+−36b

a2k+abk=−a3−a2b−36a−36b+217

Step 6: Factor out variable k.

k(a2+ab)=−a3−a2b−36a−36b+217

Step 7: Divide both sides by a^2+ab.

k(a2+ab)

a2+ab

=

−a3−a2b−36a−36b+217

a2+ab

k=

−a3−a2b−36a−36b+217

a2+ab

Answer:

[tex]a_n=112\left(-\frac{1}{4}\right)^{n-1}[/tex]

Step-by-step explanation:

Geometric Sequences

There are two basic types of sequences: arithmetic and geometric. The arithmetic sequences can be recognized because each term is found as the previous term plus a fixed number called the common difference.

In the geometric sequences, each term is found by multiplying (or dividing) the previous term by a fixed number, called the common ratio.

We are given the sequence:

112, -28, 7, ...

It's easy to find out this is a geometric sequence because the signs of the terms are alternating. If it was an arithmetic sequence, the third term should be negative like the second term.

Let's find the common ratio by dividing each term by the previous term:

[tex]\displaystyle r=\frac{-28}{112}=-\frac{1}{4}[/tex]

Testing with the third term:

[tex]\displaystyle -28*-\frac{1}{4}=7[/tex]

Now we're sure it's a geometric sequence with r=-1/4, we use the general equation for the nth term:

[tex]a_n=a_1*r^{n-1}[/tex]

[tex]a_n=112\left(-\frac{1}{4}\right)^{n-1}[/tex]

Answer

402 meters ÷ 18 seconds

Step-by-step explanation:

Answer:

402 meters ÷ 18 seconds

Step-by-step explanation:

While doing this sorta math to find the speed it will always be how long  ÷  by how long or time!

Answer:

-3

Step-by-step explanation:

Just simply add 6 to -9 and you would get -3, not sure what else you would need. Just let me know if there is anything else.

Answer:

1/3

Step-by-step explanation:

If you want to write the fraction in its lowest terms, all you have to do is simplify!! Simplifying is easy; all you have to do is divide on the top and bottom of the fraction by the same number.

So, to simplify 6/18, figure out what the highest number is that can go into both numbers in the fraction. For this problem, the highest number is 6.

6 divided by 6 is 1.

18 divided by 6 is 3.

The simplified answer comes out as 1/3...you can also check it by multiplying 1 and 3 by 6.

1 multiplied by 6 is 6.

3 multiplied by 6 is 18.

So, 6/18 in lowest terms is 1/3!!

I hope you understood...have a great day :)

Answer:

14.0cm

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

one possible way to do this is to simply observe that 12*2 =24, so 5 shares must also be multiplied by 2

another way is to set up a proportion, 5/12=x/24, cross multiply, 5*24=12x, solve for x, x=(5*24)/12=10

Answer:

x=-3

Step-by-step explanation:

-2(-x-3)-4x-1=13

2x+6-4x-1=13

-2x+5=13

-2x=8

x=-4

Answer:

x = -4

Step-by-step explanation:

Expand

2x + 6 - 4x - 1 = 13

Rearrange, by collecting like terms and placing them on either side of the equation.

2x - 4x = 13 + 1 - 6

Simplify

-2x = 8

Divide both sides by -2

-2/-2x = 8/-2

x = -4

Answer:

Y = 14

Step-by-step explanation:

6 times 2 = 12

7 times 2 = 14

Answer:

D

Step-by-step explanation:

8.4 minus 3 equals 5.4

10¹⁰ minus 10⁷ is 10³

Answer:

The correct answer is 2.8 x 10^3

Step-by-step explanation:

I Hope this helps.

Answer:

x = 20

Step-by-step explanation:

The angles are same side interior angles so the add to 180

3x-10 + 5x+30 = 180

Combine like terms

8x +20 =180

Subtract 20 from each side

8x+20 -20 =180-20

8x = 160

Divide by 8

8x/8 =160/8

x = 20

Answer: x = 25

Step-by-step explanation:

When lines are parallel, the same side interior angles are supplementary, meaning they add up to 180 degrees. So to find x, you would add the two expressions and make it equal to 180 degrees.

3x - 10 + 5x + 30 = 180

8x - 20 = 180

8x = 200

x = 25

The answer is x=25

Answer:

I believe that B and C are the answers

Answer:

The answer is A and C.

Step-by-step explanation:

I got this answer from Khan Academy

Hope this helps! :)

Answer:

27 feet squared

Step-by-step explanation:

the formula for the area of a triangle is b(h)/2 so u just plug in the numbers into the formula from the question. we know that the base is 6ft long and the height is 9ft long.

A = b(h)/2

A = 6(9)/2

A = 27

therefore the area of the sail is 27 feet squared.

Answer:

The simplified answer would be 5x + 25

Step-by-step explanation:

(5)(x+5)

(5)(x)+(5)(5)

=5x + 25

Fraction strips uses (least)  common denominators, thus splitting big fraction into sum with like denominators and thus making addition possible.

Fraction strips require three major steps.

1. Firstly convert the problem with modelling as fraction strips.

2. Find the common denominator which should be least of all.

3. Now calculate the sum on new converted fractions.

For example:

[tex]\begin{aligned}\dfrac{1}{2} + \dfrac{3}{4} &= \dfrac{1}{4} + \dfrac{1}{4} + \dfrac{3}{4}\\&= \dfrac{2}{4} + \dfrac{3}{4}\\&= \dfrac{5}{4} = \: Ans.\end{aligned}[/tex]

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Answer:

1 mile=o.oo621371 meters

Step-by-step explanation: with that the answer would be 0.497097

Answer:

40°

Step-by-step explanation:

50+40=90

Answer:

slope = -2

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

the answer is 10.16 Hope This Helps!!!

Step-by-step explanation:

because 7.62+2.54= 10.16

Answer:

10.16

Step-by-step explanation:

Answer:

20000

Step-by-step explanation:

2.8*10^7 = 28000000

1.4*10^3 = 1400

28000000/1400= 20000

Hope this helped!!

Answer:

2.8*10^7\ 1.4*10^3simplifies to 20000000000

Step-by-step explanation: