A collection of 40 dimes and nickels
is worth $2.90. How many nickels are
there? (Hint: In your equation, use
290¢ instead of $2.90.)

Answers

Answer 1

9514 1404 393

Answer:

22 nickels18 dimes

Step-by-step explanation:

Let d represent the number of dimes (the higher-value coin). Then the number of nickels is 40-d, and the total value in cents is ...

  5(40 -d) +10(d) = 290

  200 +5d = 290

  5d = 90

  d = 18

  40 -d = 22

There are 22 nickels (and 18 dimes).

_____

Additional comment

If you write the equation in terms of the number of nickels (n), you end up with the equation -5n = -110. The formulation used above avoids negative numbers, which can be confusing for some people.


Related Questions

Please help me with this my math isn't the best

Answers

From vertical angles and corresponding angles, I could figure out that that angle would equal 100 degrees. So we just equal the equation to 100 and solve. X=17

can you help me with number nine it says find the slope of the line that passes through each pair of points ​

Answers

How to find slope?

Slope is represented as m

If two point are

(x_1,y1)(x2,y2)

Slope is given by

[tex]\\ \sf\longmapsto Slope=m=\tan\Theta=\dfrac{y_2-y_1}{x_2-x_1}[/tex]

Please help with this math problem ASAP! Will give brainliest!

Answers

Answer:

I only know what y is, y is 4a, wait I think a is z and z is a. I’m not sure

Step-by-step explanation:

a = 36°y = 144°z = 36°

Step-by-step explanation:

value of a :

4a + a = 180°

5a = 180°

a = 36°

value of y :

y = 4a

y = 4(36)

y = 144°

value of z :

z = a

z = 36°

Sara read 1/6 of the newspaper in 1/3 of an hour. How long did it take her to read the whole paper?​

Answers

6*1/3=6/3=2 hours

hope it helped

Victoria logged in to work at 8:15 am and logged out at 4:25 pm.

How many hours did she work? (Her employer rounds to the nearest quarter hour.)
7 1/2 hours

7 3/4 hours

8 hours

8 1/4 hours

Answers

8 1/4 hours long i think

In total Victoria worked for [tex]8 \frac{1}{4}[/tex] hours. Therefore, option D is the correct answer.

Given that, Victoria logged in to work at 8:15 am and logged out at 4:25 pm.

What is clock?

A clock or a timepiece is a device used to measure and indicate time. The clock is one of the oldest human inventions, meeting the need to measure intervals of time shorter than the natural units such as the day, the lunar month and the year.

Victoria logged in to work at 8:15 am

8:15 am →9:15 am →10:15 am→11:15 am→12:15 pm→1:15 pm→2:15 pm→3:15 pm→4:15 pm

8:15 am →9:15 am = 1 hour

9:15 am →10:15 am = 1 hour

10:15 am→11:15 am = 1 hour

11:15 am→12:15 pm = 1 hour

12:15 pm→1:15 pm = 1 hour

1:15 pm→2:15 pm = 1 hour

2:15 pm→3:15 pm = 1 hour

3:15 pm→4:15 pm = 1 hour

So, in total Victoria logged in for 8 hours 10 mins

Its nearest quarter is [tex]8 \frac{1}{4}[/tex] hours

In total Victoria worked for [tex]8 \frac{1}{4}[/tex] hours. Therefore, option D is the correct answer.

To learn more about the clock problems visit:

https://brainly.com/question/28059531.

#SPJ5

3. (04.03 LC)
Identify the domain of the exponential function shown in the following graph: (2 points)

Answers

Answer:

x is greater than or equal to 0.

Step-by-step explanation:

The domain is just your X value. In contrast, the range is your Y value. Since we start at and include 0 on the X axis, we continue forever from there. Therefore, X is greater than or equal to 0.

phil has 3 mangoes he cuts 1 and gives 3\5 to his little brother how much did he keep for him self​

Answers

Answer:

2 2/5.

Step-by-step explanation:

PLEASE HELP ASAP!

4y - 5x = 6 - 3x
Solve for X

Answers

Answer:

 X= -2

Step-by-step explanation:

The speed (v) of a gear varies inversely as the number of teeth (t). If a gear that has 48 teeth makes 20 revolutions per minute, how many revolutions per minute will a gear that has 30 teeth make?

I'll give Brainliest! Please no links

Answers

Answer:

32 revolutions per minute(rpm)

Step-by-step explanation:

v inversely proportional to t

so if v increases t will decrease and vice versa

inverse equation is xy=k

xy=k

48×20= 960 (revolutions)

then you'll take k(960) and divide it by number of teeth

so..

960/30 = 32 revolutions per minute

five times the sum of x and y decreased by 2x
write this as an algebraic expression

Answers

[tex]x + y \times 5 - 2x[/tex]This algebraic expression can be formed with the given data.

Answer:

5(x+y) - 2x

this is the algebraic expression

Find the measure of the missing angles.
56°
102°
d
e
f

Answers

Answer:

Step-by-step explanation:

d = 102°

e = 56°

f = 22°

The measurement of each of the angle is -

∠e = 56°  

∠d = 102°

∠f = 22°

What are intersecting lines?When two or more lines cross each other in a plane, they are called intersecting lines. The intersecting lines share a common point, which exists on all the intersecting lines, and is called the point of intersection.In Euclidean geometry, a parallelogram is a simple quadrilateral with two pairs of parallel sides. The opposite or facing sides of a parallelogram are of equal length and the opposite angles of a parallelogram are of equal measure

Given are the intersecting lines as shown in the image.

We can write that -

∠e = 56°                                 {vertically opposite angles}

∠d = 102°                                {vertically opposite angles}

∠f = {180 - (102 + 56)}             {vertically opposite angles}

∠f = 22°

Therefore, the measurement of each of the angle is -

∠e = 56°  

∠d = 102°

∠f = 22°

To solve more questions on angles, visit the link below -

brainly.com/question/12413243

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Somebody help me please

Answers

Answer:

13th Amendment- C

14th Amendment- A

15th Amendment- B

Step-by-step explanation:

Answer:

13th C

14th A

15th B

Step-by-step explanation:

You have to think of it in events in order. Slaves can't vote until they're free, so the thirteenth amendment gets rid of slavery. It wouldn't make sense if slaves could vote without other freedoms, so freedoms come first. 14th is B for this reason. Lastly, the fifteenth amendment grants African American men to vote years down the road (women weren't allowed to vote yet at all, so the African American females also didn't have this right)

If one school bus can hold 64 students, what is the least number of buses needed to transport 700 students on a field trip

Answers

11 school buses, this is because 700 divided by 64 is 10.9375 and since you can’t have a fraction of a bus, you need to round, so you would need 11 school buses.

Please help me asap!!!!!!!!

Answers

Answer:

7/4 and 3/8.

Step-by-step explanation:

You can get this by dividing all possible answers, and if the decimal stops you have a terminating decimal.

Find the equivalent measurement.

a. _ feet = 7 yards
b. 9 feet = _ yards
c. _ yards = 48 inches
d. _ yards = 24 feet

Answers

a = 21
b = 3
c = 1.3? not sure
d = 8
A. 21 feet because each yard is 3 feet so you multiply 3x7 to get 21
B 3 yards because you divide 9 by 3
C . 1.33 yards
D. 8 yards

I NEED THIS ASAP,Which equation represents a line with a slope of 0 (zero) that goes through the point (-6, -1)?
A. y = -6
B. y = -1
C. x = -6
D. x = -1

Answers

Your answer is C If its two answers it is C B

Answer:

c/3 and if multiple c/3 and b/8

Step-by-step explanation:

This question is bothering and hurting my brain a lot: A restaurant has a square floor with an area of 324 m². Sketch the resaurant floor. What are its dimensions?

Answers

Answer:

The dimensions are 18m by 18m

Step-by-step explanation:

Since the problem says the floor is square, we know that all 4 sides are equal. The area for a square is one side squared. Since we do not have the actual length per side, we write the following formula: x^2= 324.

From there, we simply take the square root to figure out that one side is 18 meters. Once we know one side, we know all 4 because a square has equal sides. Therefore, the dimensions of the floor are 18m x 18m. I hope this helps!

Write an equivalent expression (p-4)(p+3).

Answers

Answer:

p^2 - p - 12

Step-by-step explanation:

Hope this helps! Pls give brainliest!

Answer:

[tex](p - 4)(p + 3) = {p}^{2} + 3p - 4p - 12 \\ = {p}^{2} - p - 12[/tex]

Select the equation that is true.

A.0.84 x 6 = 0.504
B. 0.84 x 6 = 5.04
C. 0.84 x 6 = 50.4
D. 0.84 x 6 = 504

Answers

Answer:

0.84 x 6 = 5.04

Step-by-step explanation:

5.04 is the answer.

Answer:

Answer B is correct

Step-by-step explanation:

We want to multiply 6 and 0.84

First you have to forget about decimals and multiply those two numbers

084

   ×6

-----------------

 =  504

And then consider about the number of decimal places. According this sum you have 2 decimal places ( 0.84 )

And now you can write the answer as

= 5.04

Hope this helps you.

Let me know if you have any other questions :-)

Find the area of the shaded part in this exercise. (URGENT. FOR TODAY)

Answers

Answer:  80

Step-by-step explanation: Well the 60 is too slanted and 90 would be straight 70 would be less straight then it is 80

¿Qué es la poblacion en estadistica?

Answers

Answer:

Que?

Step-by-step explanation:

I don't speak Español

6 3/4 ÷1 1/8



HELP ME PLEASE

Answers

Answer: 6

Step-by-step explanation:

Remember when you’re dividing by fractions you keep the original fraction the same then you change the sign from division to multiplication and the second fraction you flip
6 3/4 x 1 1/8
27/4 x 8/9
Your answer is 6

What is the circumference of this circle?



A.

B.
72π
C.
12π
D.
None of the above
E.
36π

Answers

Answer:

Uaiahauqiqioq0a0a9jJbaab

What represents the recursive formula for the arithmetic sequence an=7-3(n-1)

Answers

Answer:

[tex]\left\lbrace\begin{aligned}& a_{1} = 7 \\ & a_{n+1} = a_{n} - 3 && \text{for $n \ge 1$}\end{aligned}\right.[/tex].

Step-by-step explanation:

An arithmetic sequence could be defined using only two pieces of information:

The first term of this sequence, [tex]a_{1}[/tex].The common difference between two consecutive terms of this sequence, [tex]d[/tex].

The arithmetic sequence in this question is given in the explicit form, [tex]a_{n} = 7 - 3\, (n - 1)[/tex], which is equivalent to [tex]a_{n} = 7 + (-3)\, (n - 1)[/tex]. In the explicit form, [tex]a_{1}[/tex] and [tex]d[/tex] are described in the same equation:

[tex]\text{$a_{n} = a_{1} + d\, (n - 1)$ for $n \ge 1$}[/tex].

Compare [tex]a_{n} = a_{1} + d\, (n - 1)[/tex] with [tex]a_{n} = 7 + (-3)\, (n - 1)[/tex]: [tex]a_{1} = 7[/tex] whereas [tex]d = -3[/tex].

When an arithmetic sequence is given in the recursive form, [tex]a_{1}[/tex] and [tex]d[/tex] are specified in two separate equations:

[tex]\left\lbrace\begin{aligned}& a_{1} = a_{1} \\ & a_{n+1} = a_{n} + d && \text{for $n \ge 1$}\end{aligned}\right.[/tex].

In this question, it was found that [tex]a_{1} = 7[/tex] whereas [tex]d = -3[/tex]. Hence, the corresponding recursive formula for this arithmetic sequence would be:

[tex]\left\lbrace\begin{aligned}& a_{1} = 7 \\ & a_{n+1} = a_{n} + (-3) && \text{for $n \ge 1$}\end{aligned}\right.[/tex].

prove that 5^(2n - 1) is divisible by 8​

Answers

Answer:

Step-by-step explanation:

Prove that 52n − 1 is divisible by 8 for all n ∈ N.

Solution

To prove by induction, we must

1. Show it is true for n = 1

2. Assume true for n and prove it is true for n + 1.

Let P(n) be the statement 52n − 1 is divisible by 8.

When n = 1, 52 − 1 = 24, which is divisible by 8.

This proves P(1).

Suppose that P(n) is true, i.e., 52n − 1 is divisible by 8.

Then 52(n+1) − 1 = 52

· 5

2n − 1 = 52

(52n − 1) + (52 − 1).

Note that 52n −1 is divisible by 8 using P(n) and also 52 −1 = 24 is divisible

by 8. Thus we have proved that P(n + 1) is true.

We conclude that P(n) is true for all n ∈ N.

Evaluate (2-5i)(p+q)(i) when p= 2 and q=5i

Answers

Answer:

it's 25qr 78 5×4 and then 12÷5= 2r28

Which of the following describes distributive property? *

12 + 10 = 22
12 + 10 = 10 + 12
5( 7 + 4) = 35 + 20
5( 7 + 4) = 35 + 5

Answers

deu ruim  aqui pq eu não sei

Step-by-step explanation:

Given triangle GHJ, the measure of angle G equals
H
measure of angle H equals 30°. Complete the following
statements.
Since angle G is _____
angle, the opposite
side, JH, is________
The order of the side lengths from longest to shortest is______
110°, the measure of angle J equals 40°, and the
G

Answers

I do not know the answer sorry

PPPPPPPPPPPPPPLLLLLLLLLLLLEAAAAAAAAAAAASSSSSSSSSSSSSSSEEEEEEEE
help me!

Answers

Answer:

(4,0)

Step-by-step explanation:

Both lines intersect, or cross, at one point on the graph, which is (4,0). Therefore, that point is a solution to the system of equations.

Hope this helps!

14 divided by 7,574 I need the answer to be simplified, please

Answers

Answer:

0.0243902439

Step-by-step explanation:

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