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Alang has $0.80 worth of nickels and dimes. He has a total of 10 nickels and dimes altogether. By following the steps below, determine the number of nickels.
Determine three ways to have a total of 10 coins:

Answer:

a = fr /Q

Step-by-step explanation:

Q /r = f/a

Using cross products

Q a = fr

Divide each side by Q

Qa /Q = fr/Q

a = fr /Q

This triangle is classified as an acute triangle since all three angles measure less than 90° (83⁰, 44⁰). It is also classified as an isosceles triangle since two of the sides (2 cm and 2.5 cm) are equal in length.

An acute triangle is a triangle in which all three angles measure less than 90 degrees. It is the opposite of an obtuse triangle, which has one angle measuring more than 90 degrees.

An acute triangle can also be referred to as a “sharp” triangle. The sum of all three angles in an acute triangle will always equal 180 degrees. An acute triangle can be either isosceles or scalene.

An isosceles triangle is a triangle with two sides of equal length and two equal angles opposite the two sides. The two angles are often referred to as the base angles, while the third angle is called the vertex angle. The two sides of an isosceles triangle are also often referred to as the legs, while the longest side is referred to as the base.

Isosceles triangles are studied in geometry, and the properties of such triangles can be used to solve many mathematical problems.

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Answer:

7.10 I think its 7.10

Answer:

The slides is 36 and the angle is 180.

Step-by-step explanation:

14.4m+15.6m+6m=36

90+30+50=180  

If they ask why it is 180 because when adding all the angles it has to give you a total of 180.

Answer:

1 milimeter

Step-by-step explanation:

the rest you can see easily by naked eye

Answer:

D

Step-by-step explanation:

1 millimeter cuz its a microscope u use it to see deep into stuff.

Give brainliest

Answer:  There are multiple sets that produce single triangles:

SET     RESULT

1          Single / Sides: a = 7   b = 16   c = 21.222

2         Single / Sides: a = 9.2   b = 16   c = 22.641

3         Single / Sides: a = 12.4   b = 16   c = 25.852

4         Two Solutions / with side c=31.448 and with side c=6.696

5         Single / Sides: a = 7   b = 16   c = 21.222

6         Single / Sides: a = 9.2   b = 16   c = 22.641

7         Single / Sides: a = 12.4   b = 16   c = 25.852

8         Two Solutions / with side c=31.448 and with side c=6.696

Step-by-step explanation:

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If the first quartile is 39 years old, it means that approximately one-fourth of the employees at CCNHS – Main Campus are 39 years old or younger.

The first quartile (Q1) of the ages of the 256 employees of CCNHS – Main Campus being 39 years old implies that 25% of the employees have an age equal to or less than 39 years old.

In statistical terms, the first quartile represents the point below which 25% of the data falls. It divides the data set into four equal parts, with each part containing 25% of the data. Therefore, if the first quartile is 39 years old, it means that approximately one-fourth of the employees at CCNHS – Main Campus are 39 years old or younger.

This information provides insight into the age distribution of the employees at the institution. It indicates that a significant portion of the employees are relatively young, with a quarter of them falling below the age of 39. Understanding the age demographics of the workforce can be useful for various purposes, such as planning professional development programs or implementing age-specific policies.

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Answer:

A, .54

Step-by-step explanation:

The number line ranges from .542 up until .611, giving you three options below. For .6, it can be translated into .600 which is in bounds of the number line. Next for .604, it is still in bounds of the number line. For .54 it would be translated to .540 which is not in bounds, being before .542.

Answer:

40!

Step-by-step explanation:

3x+20+40=180

3x+60=180

3x=120

x=40

Answer:

b=40

Step-by-step explanation:

Answer:

\({ \bf{P = 2L + 2W}} \\ { \tt{P = 2(W + L)}} \\ { \tt{P = 2(148 + 57)}} \\ { \tt{P = 410}}\)

Answer:

P=410

Step-by-step explanation:

2(57)+2(148)=114+296=410

Answer:

(3,-4)

Step-by-step explanation:

Answer:

11

Step-by-step explanation:

Substituting the values of x, y, and z into the expression, we get:

2x² - y + 2(z-1) = 2(2)² - 3 + 2(4-1)

= 2(4) - 3 + 2(3)

= 8 - 3 + 6

= 11

Therefore, if x = 2, y = 3, and z = 4, then the value of the expression 2x² - y + 2(z-1) is 11.

Answer:

11

Step-by-step explanation:

if x = 2, y = 3, and z = 4.

2x²-y + 2(z-1)

Substituting the given values of x, y, and z, we get:

2x² - y + 2(z-1) = 2(2)² - 3 + 2(4-1)

= 2(4) - 3 + 2(3)

= 8 - 3 + 6

= 11

Therefore, the value of the expression when x = 2, y = 3, and z = 4 is 11.

BODMAS (Brackets, Order, Division, Multiplication, Addition, Subtraction) is used to determine the sequence of operations in a mathematical expression. It is used to avoid confusion and ensure that everyone obtains the same answer from a mathematical expression. The rule states that the operations inside the brackets must be done first, followed by orders, then division and multiplication (from left to right), and finally addition and subtraction (from left to right).

Answer:

Therefore, you need 2600 pounds of 35% supplement and 1300 - 2600 = -1300 pounds of 10% ration.

Step-by-step explanation:

The unknown variable is x, which is the amount of 35% supplement needed. The other expressions are derived from the given information and the fact that the total amount of solution is 1300 pounds.

The equation from the fourth column is:

0.35x + 0.10(1300 - x) = 0.25(1300)

Solving for x, we get:

x = (0.25(1300) - 0.10(1300)) / (0.35 - 0.10) x = 650 / 0.25 x = 2600

Answer:

D) 50

Step-by-step explanation:

-100 <-45 < 20 < 50

Answer:

50

Step-by-step explanation:

any numbers approaching negative (before 0) in an increasing manner are the lowest, whereas numbers approaching positive in a increasing manner are the greatest.

Answer:

A, B, D

Step-by-step explanation:

for y = 3x + 2

for (#,#), the first number is x and the second number is y

A. if x = -2

y = 3(-2) + 2 = -6 + 2 = -4

which is corresponding to the number -4

so A is true

B. if x = -1

y = 3(-1) + 2 = -3 + 2 = -1

so B is true

C. If x = 3

y = 3(3) + 2 = 9 + 2 = 11

so C is false

D. if x = 2

y = 3(2) + 2 = 6 + 2 = 8

so D is true

Answer:

These are three possible solutions to the equation:

(0,2), (1,5), 2,8

The answer is D

Step-by-step explanation:

look at the pictures

Answer:

12

Step-by-step explanation:

mean is calculated as

mean = \(\frac{sum}{count}\)

Here mean = 316 and sum = 3792 , count n is required to be found, so

\(\frac{3792}{n}\) = 316 ( multiply both sides by n )

3792 = 316n ( divide both sides by 316 )

12 = n

There are 12 observations in the data

Answer:

p = - 5

Step-by-step explanation:

–2.5p – 20 = 9p + 37.5

combine like terms:

- 2.5p - 9p = 37.5 + 20

simplify:

- 11.5p = 57.5

p = 57.5 / -11.5

p = - 5

Answer:

The answer is p = -5

Step-by-step explanation:

-2.5p - 20 = 9p + 37.5

(move constants to one side by adding 20 to both sides)

-2.5p = 9p + 57.5

(move all terms with the "p" variable to one side by subtracting 9 from both sides)

-11.5p = 57.5

(divide both sides by -11.5 to isolate the variable)

p = -5

Answer:

Step-by-step explanation:

45

Answer:

Step-by-step explanation:

5

Answer

\(\pink\sf{y=-1}\)

Step-by-step explanation

I'm assuming that this exercise is asking us to simplify the equation \(\sf{y=0.5(6)-4}\).

We know that 0.5 (6) means 0.5 multiplied by 6. That is the same as 6 divided by 2, which is 3:

\(\sf{y=3-4}\)

And now we just simplify the last part:

\(\sf{y=-1}\)

∴ answer: y = -1

Answer:

100 pieces of rope

Step-by-step explanation:

Answer:

y= 4x+8

Step-by-step explanation:

Add 12x to both sides.

3y=24+12x

The equation is in standard form.

3y=12x+24

Divide both sides by 3.

3

3y

​

=

3

12x+24

​

Dividing by 3 undoes the multiplication by 3.

y=

3

12x+24

​

Divide 24+12x by 3.

y=4x+8

Answer:

76ft^3

Step-by-step explanation:

Volume of a cube is Length x Width x Height, basically: 4 x 4 x 4 which is 64 ft^3. Add that to the small box gives you 64 + 12 or just 76 ft^3

Answer:

3. 7kg

4. 100kg

5. 13kg more

6. $64

7. 200kg

Answer:

A round pencil is sharpened at both ends the hight of the pencil is 16cm the length of the pencil is 1cm the radius of the two sharpened ends is 16cm 1.2cm

Calculate the volume using the value 22/7. 

Step-by-step explanation:

Answer:

\(D(x,y) = (-1.5,3.5)\)

Step-by-step explanation:

Given

\(E = (-3,2)\)

\(F = (3,8)\)

\(ED: DF = 1 : 3\)

Required

Determine the coordinates of D

This is calculated as thus:

\(D(x,y) = (\frac{mx_2 + nx_1}{m+n},\frac{my_2 + ny_1}{m+n})\)

Where:

\((x_1,y_1) = (-3,2)\)

\((x_2,y_2) = (3,8)\)

\(m:n = 1:3\)

\(D(x,y) = (\frac{mx_2 + nx_1}{m+n},\frac{my_2 + ny_1}{m+n})\)

\(D(x,y) = (\frac{1 * 3 + 3 *-3}{1+3},\frac{1 * 8 + 3 * 2}{1+3})\)

\(D(x,y) = (\frac{-6}{4},\frac{14}{4})\)

\(D(x,y) = (-1.5,3.5)\)

Answer:

- Banking Operations salary in India with less than 1 year of experience to 10 years ranges from ₹ 1.4 Lakhs to ₹ 7 Lakhs with an average annual salary of ₹ 3.1 Lakhs based on 261 latest salaries

Answer: D. an=-3*(1/8)^n-1

Step-by-step explanation:

The explicit formula for the geometric sequence with this recursive

formula will be; \(a_n=-3(1/8)^{n-1}\)Therefore, the option D is the correct.

Suppose the initial term of a geometric sequence is a

and the term by which we multiply the previous term to get the next term is r

Then the sequence would look like

a, ar, ar^2, ar^3, \cdots

 (till the terms to which it is defined)

Thus, the nth term of such sequence would be  T_n = ar^{n-1} (you can easily predict this formula, as for nth term, the multiple r would've multiplied with initial terms n-1 times).

The sum of terms of a geometric sequence;

Lets suppose its initial term is  a, multiplication factor is  r

and let it has total n terms, then, its sum is given as:

\(S_n = \dfrac{a(r^n-1)}{r-1}\)

(sum till nth term)

We have been given;

\(a_1 = -3\\a_n= a_{n-1} (1/8)\)

So, the explicit formula for the geometric sequence with this recursive

formula will be;

\(a_n=-3(1/8)^{n-1}\)

Therefore, the option D is the correct.

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Step-by-step explanation:

area of a circle= πr²

and r= half diameter

therefore we have r=10/2=5

area= 5² x π

area= 25π

circumference=2πr

circumference= 2xπx5

circumference=10π

The velocities of the boat and the person relative to the shore are 1.337 m/s and 2.896 m/s, respectively.

We can use the conservation of momentum equation:

(mboat + mperson) * vboat = mperson * vperson

(160 kg + 70 kg) * vboat = 70 kg * (0.80 m/s + vperson)

230 kg * vboat = 56 kg * (0.80 m/s + vperson)

vboat = (56/230) * (0.80 m/s + vperson)

vperson = 0.80 m/s + vboat

vperson = 0.80 m/s + (56/230) * (0.80 m/s + vperson)

(174/115) * vperson = (504/115) * m/s

Dividing both sides by (174/115), we get:

vperson = 2.896 m/s

vboat = (56/230) * (0.80 m/s + vperson)

Substituting the value of vperson, we get:

vboat = 1.337 m/s

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On a 160-kg boat that is at rest with its bow pointed to the shore, a 70-kg person begins to walk from the bow to the stern at 0.80 m/s relative to the boat. What are the velocities of the boat and the person relative to the shore? Neglect the resistance of water to motion.