A collection of nickels and quarters in a jar is worth
$8.05. If there are a total of 45 nickels and quarters
in the jar, how many nickels are there?

Answers

Answer 1

Answer:

16 nickels

Step-by-step explanation:

Let "n" be the number of nickels

Let "q" be the number of quarters

We know that,

1 nickel = $ 0.05 or 5 cent

1 quarter = $ 0.25 or 25 cent

Anna has a collection of 45 nickels and quarters

Therefore,

n + q = 45

q = 45 - n --------- eqn 1

Anna has a collection of 45 nickels and quarters worth $8.05

$ 8.05 is worth 805 cents

Thus we frame a equation as:

number of nickels x 5 cents + number of quarters x 25 cents = 805

5n + 25q = 805 ----- eqn 2

Let us solve eqn 1 and eqn 2

Substitute eqn 1 in eqn 2

5n + 25(45 - n) = 805

5n + 1125 - 25n = 805

20n = 1125 - 805

20n = 320

n = 16

Then there are 16 Nickels


Related Questions

Which situation could this expression represent?

(4+6)×2


Sarah reads 4 pages in the morning and 6 pages at night for 2 days. What is the total number of pages that Sarah read?

Adisa reads 4 pages one day and reads 6 pages on each of the next 2 days. What is the total number of pages that Adisa read?

Tahir reads 4 pages in the morning and 6 pages at night one day. The next day Tahir reads 2 pages. What is the total number of pages that Tahir read?

Adwin reads 6 pages in the morning and 2 pages at night for 4 days. What is the total number of pages that Adwin read? (please hurry)

Answers

answer:24

Step-by-step explanation:

The use of BODMAS .We must solve the bracket first before the multiple

Answer:

Sarah reads 4 pages in the morning and 6 pages at night for 2 days. What is the total number of pages that Sarah read?

Step-by-step explanation:

If Sarah read 4 pages in the morning and 6 pages at night for 2 days the would equal 4+6x2

4 is the number of pages in the morning

6 is the pages at night

and 2 is the number of days that she read the pages

Which statement describes the value of the expression below?
67x1/6

Answers

[tex] \frak{ \dfrac{67}{6} }[/tex]

Answer: 33.5

Step-by-step explanation:

A garden store purchased a lawn mower and marked it up 160% from the original cost of $82.67. A week later, the store placed the lawn mower on sale for 10% off. What was the discount price?

Answers

The discount price of the lawn mower purchased by the store is  $193.45.

What is the discount price?

The first step is to determine the selling price of the lawn mower.

Selling price = ( 1 + 1.60) x $82.67 = 214.94

Now determine the price after the discount has been applied.

Discount price = (1 - 0.1) x 214.94 = $193.45

To learn more about how to calculate discounts, please check: https://brainly.com/question/26061308

4.289 rounded to the nearest tenth

Answers

4.3 is your answer :)

Why does i^3= -i
I know i is square root -1 but I don't know how i^3= -i

Answers

Answer:

i³ = -i

Step-by-step explanation:

i³ can be rewritten as i² · i

i² = -1

-1 · i = -i

Hope this helps!

What is 4 – 12? −16 −8 8 16
please help

Answers

Answer: -8

Step-by-step explanation:

15 times a number plus 42 is greater than 7



please help!

Answers

Answer: equation would be 15x+42>7

Step-by-step explanation: first subtract 42 from 7, you would get -35, then divide -35 by 15, which gets you -2.3, meaning your answer is x>-2.3

Find the length of the third side. If necessary, round to the nearest tenth.

Answers

Answer:

Step-by-step explanation:

What is the product of 9 radical 5 and 5 radical 10 in simplest radical form?

Answers

Answer:

Step-by-step explanation:

(9√5)   (5√10)

The leading interger product is found by multiplying 9 and 5

The leading integer product is 9*5 = 45

The radical product is (√5*10

Factor 10

radical product = √5*2*5

There are 2 fives underneath the radical. Take one out and ignore the other

radical product = 5√2

The 5 now multiplies by 45 and √2 becomes part of the answer

5*45√2

225√2

the greatest common factor of 3x^4-12x^2

Answers

Answer:

3x^2

Step-by-step explanation:

3x^4-12x^2

Factoring out 3x^2

3x^2 ( x^2 -4)

We can factor (x^2-4) since it is the difference of squares

3x^2 ( x-2) (x+2)

The greatest common factor is 3x^2

hello!

Let's find the G.C.F. (Greatest Common Factor) of 3x⁴-12x².

The key words here are "common" and "greatest".

Here are some common factors:-

3

3x

3x²

x

And the greatest common factor is:-

3x²

[If Necessary]

Factor it out by dividing the terms in the polynomial by the GCF:-

4

Subtract the terms:-

(x²-4)

And put the G.C.F. outside the parentheses:

3x²(x²-4)

note:-

Hope everything is clear; if you need any clarification/explanation, kindly let me know, and I will comment and/or edit my answer :)

Graph the function using the graphing calculator. find the least positive value of t at which the pendulum is in the center. t = sec to the nearest thousandth, find the position of the pendulum when t = 4.25 sec. d = in.

Answers

The least value of the function at which the pendulum is in the center is 0 and the position of the pendulum when t = 4.25 sec. is 4.24

The graph of the function

The function is given as:

y = 6cos(πt)

See attachment for the graph of the function

The least positive value of t

The value of t is given as: -0.5

From the attached graph, the smallest value of the function when t = -0.5 is 0.

Hence, the least value of the function at which the pendulum is in the center is 0.

The position of the pendulum when t = 4.25 sec.

We have:

y = 6cos(πt)

Substitute 4.25 for t

y = 6cos(4.25π)

Evaluate

y = 4.24

Hence, the position of the pendulum when t = 4.25 sec. is 4.24

#SPJ1

Read more about cosine function at:

https://brainly.com/question/10078563

Answer:

t = 6

next one is 5

Step-by-step explanation:

~Hope this helps! :)

A linear function is represented below.


Which function has a greater y-intercept than the function in the table?

A. y = 4x

B. y = –2x

C. y = –x – 1

D. y = –0.5x + 5


here is the chart it wouldn't let me do a screenshot:

X, Y
-2,-6
0 0
3 9

Answers

Solution:

D. y = –0.5x + 5

In this chart, the slope, (m):

[tex]\sf \dfrac{y_2-y_1}{x_2-x_1}}[/tex]

[tex]\hookrightarrow \sf \frac{-6-0}{-2-0}[/tex]

[tex]\hookrightarrow \sf \frac{-6}{-2}[/tex]

[tex]\hookrightarrow \sf 3[/tex]

Equation:

[tex]\sf y_1-y= m(x_1-x)[/tex]

[tex]\hookrightarrow \sf y-(-6)= 3(x-(-2))[/tex]

[tex]\hookrightarrow \sf y+6= 3x+6[/tex]

[tex]\hookrightarrow \sf y+6-6= 3x+6-6[/tex]

[tex]\hookrightarrow \sf y= 3x[/tex]  

⇒ Thus we found in the chart, the slope is 3 and y-intercept : 0

A = y-intercept : 0B = y-intercept : 0C = y-intercept : -1D = y-intercept : 5

From this D only has the greatest y-intercept than the chart.

Answer:

D

Step-by-step explanation:

Sorry if I'm late for the party, hope this helps anyways! :)

The Speed of the machine boat is 150 km per hour. How far does the machine boat go in five and a half hours?

Answers

Answer:

825km

Step-by-step explanation:

150km/h= distance/11/2 hours

150km/h divide by 11/2 hours

=825km

Answer:

825km

Step-by-step explanation:

We have the rule: speed=distance/time

in this question you are asked to calculate the distance covered by the machine boat.

so we deduce from the above rule: distance=speed*time

Given: speed=150km/hr    time=5.5hr   distance=??

Solution: distance=150x5.5 = 825km

pls help on math lol​

Answers

Answer:

The slope is -8 and the y intercept is -6

Step-by-step explanation:

The first numbers are the slopes and the one after that is the y intercept. ALWAYS

The slope is -8 and intercept is negative 6

What geometric shapes can you draw that have exactly four pairs of perpendicular sides? Use

pencil and paper. Sketch examples for as many different types of shapes as you can.

Which of these types of geometric shapes can have exactly four pairs of perpendicular sides?

Select all that apply.

A. Triangle

B. Parallelogram

OC. Rectangle

D. Regular pentagon

Answers

Answer:

rectangle

it has four perpendicular sides

each perpendicular is 90degree

Answer: Rectangle and square

Step-by-step explanation: They both have four right angles

Put a circle round the largest number and a square round the smallest number in estha
a) 8 -7 -4 0 7
b) -9 1 0 -1 -4
C) -4 -8 -3. -7 -2

Answers

Answer:

A 406 of answer your question please sorry

show work!!

What value of x makes the equation 33x=11 true

33x=11

Answers

the answer would be: x=1/3
x= 1/3 would make the equation true

In the figure below, m || n and t is a transversal line. If ∠7 = x +14 and ∠1 = 2x -8, what is ∠4?

Answers

∠4 and ∠1 are opposite angles, and since opposite angles are equal, ∠4 =  2x - 8

(if u need a specific number)

∠1 is corresponding to ∠5, and since corresponding angles are equal, ∠5 = 2x-8

∠7 is supplementary to ∠5, and since supplementary angles add up to 180, x + 14 + 2x - 8 = 180

-> 3x + 6 = 180
x = (180-6)/3 = 58.

Since ∠4 = 2x - 8 -> ∠4 = 2 x 58 - 8 = 108.

At a community fund raiser event, bracelets cost $3 and necklaces cost $6. Complete the patterns in
the first two columns for the cost of 0, 1, 2, 3, and 4 pieces of jewelry. Write the ordered pair for the
corresponding terms in the third column. Then graph the ordered pairs

Answers

Answer: Attached photos, and the last question of my explanation.

Step-by-step explanation: If "bracelets cost $3 and necklaces cost $6"  that means we will multiply.

1. for Bracelets (1 bracelet = $3)

(0 x 3 = 0) 1. $0

(1 x 3 = 3) 2. $3

(2 x 3= 6) 3. $6

(3 x 3 = 9) 4. $9

(3 x 4 = 12) 5. $12

Explanation: We have to multiply 5 different numbers to fill in the 5 rows of bracelets & necklaces. (0,1,2,3,4 = 5 numbers). For example, if we buy 2 bracelets, 1 bracelet = $3 and 3*2=6 so it would be 6.

2. for Necklaces (1 necklace equals $6)

(0 x 6 = 0) 1. $0

(1 x 6 = 6) 2. $6

(6 x 2 = 12) 3. $12

(6 x 3 = 18) 4.  $18

(6 x 4 = 24) 5. $24

3. coordinates

1. (0,0)

2. (3,6)

3. (6,12)

4. (9,18)

5. (12,24)

Putting the coordinate pairs on the graphs: the first number is x and the second is y.

4. I displayed a photo of what the chart, and graph should look like.

5. What is the relationship between the corresponding terms in the two sequences: The second sequence is the product of multiplying sequence 1 and sequence 2.

Describe how to compare the two ratios 5:8 to 7:9. Tell each step to set up the ratios, then explain what to do to be able to compare the ratios. Finally make sure to answer how the ratios compare. ~ 100 POINTS AND ILL GIVE YOU BRAINLIEST IF YOU ANSWER CORRECTLY AND 5 SENTENCES NEEDED

Answers

Answer:

5/8 is smaller.

Step-by-step explanation:

A ratio is just a different type of fraction, a 5:8 ratio means 5/8 which is 0.625. A 7:9 ratio equals 7/9 which is 0.777777

Then to compare them you see which is smaller or bigger.

0.77777  is bigger than 0.625 so we know that 0.77777777 which was the 7:9 ratio is the bigger one.

Steps:-

First rewriteThen convert to fractionsThen divide both

[tex]\\ \rm\rightarrowtail 5:8::7;9[/tex]

[tex]\\ \rm\rightarrowtail 5/8:7/9[/tex]

[tex]\\ \rm\rightarrowtail \dfrac{5(9)}{8(9)}:\dfrac{7(8)}{9(8)}[/tex]

[tex]\\ \rm\rightarrowtail \dfrac{45}{72}:\dfrac{56}{72}[/tex]

[tex]\\ \rm\rightarrowtail \dfrac{45}{56}[/tex]

Second one is bigger

work out
3/7 + 9/11
Give your answer as an improper fraction

Answers

Answer:

60/77 the answer is not able to be an improper fraction

Step-by-step explanation:

3/7+9/11

33/77+27/77

60/77

Find the area of this figure

Answers

Answer:

Step-by-step explanation:

3*5=15

8*16=128

10*7=70

4*3/2=6

15+6+70+128=219

Answer:

219 yd²

area of rectangle

length * width3 * 515 yd²

area of 2nd rectangle

length * width9 * 872 yd²

area of rectangle

length * width7 * (10+5+3)126 yd²

area of triangle

1/2 * base * height1/2 * 4 * 36 yd²

total area:

6 yd² + 126 yd² + 72 yd² + 15 yd²219 yd²

Hello please help me this question I don’t know how to do it
Thx

Answers

Ans: b^4

Explanation:
4(2)=8
add exponents =b^5
8b^5/8b
b^4

lmk if u need clarification

Which expressions are equivalent to In e?

Answers

Answer:

1

log 10

Step-by-step explanation:

In e = 1

In e = log 10

Hope it helps you in your learning process.

I dont like math it is really really hard

Answers

Answer:

well yeah no one likes math i mean unless you mark zuckerberg

Step-by-step explanation:

Kira ran 8 1/5 miles in 69 7/10 minutes. What is Kira’s average time per mile?

Answers

Answer:

1 mile = 8.5 minutes

Step-by-step explanation:

Determining the equation:

Kira ran 8 1/5 miles in 69 7/10 minutes.

⇒ Kira = 8 1/5 miles = 69 7/10 minutes

⇒ 41/5 miles = 697/10 minutes

Simplifying both sides:

⇒ 41/5 miles = 697/10 minutes

⇒ 41 miles = 697/2 minutes

Using cross multiplication:

⇒ 41 × 2 miles = 697 minutes

⇒ 82 miles = 697 minutes

Dividing 82 both sides:

⇒ 82 miles = 697 minutes

⇒ 82/82 miles = 697/82 minutes

1 mile = 8.5 minutes

please fund the area

Answers

Answer:

48 sq m

Step-by-step explanation:

Given quadrilateral is a parallelogram.

Here,

Base = 8 m

Height = 6 m

Area of parallelogram = Base * Height

-> Area = 8 * 6 = 48 sq m

A triangle has sides of length 6 8 and 10. Do the sides form A Pythagorean triple? Explain

Answers

6*6=36 + 8*8=64
36+64 and 10*10 =100
B is correct

What is the range? ???????

Answers

Answer:

the difference between the highest and lowest values in a set of numbers.

Step-by-step explanation:

i) Given that a = 1, b = 3, c = 7, evaluate abc

Answers

Given ↓ The expression abca = 1b = 3c = 7To Find ↓The value of the expression abc

Calculations ↓Instead of a write 1 :1bcInstead of b write 3 :1*3cInstead of c write 7 :1*3*7Multiply :1*2121

Evaluated expression ↓21
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