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Ivanshal [37]
2 years ago
5

I have k quarters, five less quarters than nickels and one more than twice as many dimes as quarters. Find the value of the coin

s in cents in terms of k.
Mathematics
2 answers:
artcher [175]2 years ago
7 0

Answer:

40k + 35 cents

Step-by-step explanation:

Each quarter is worth 25 cents, each nickels is worth 5 cents and each dime is worth 10 cents.

Value of all quarters:

25k

Value of all nickels:

5*(k+5)\\5k+25

Value of all dimes:

10*(2k+1)\\20k + 10

The value of all coins in terms of k is:

V=25k+5k+25+20k+10\\V= 40k +35\ cents

All coins are worth 40k + 35 cents.

andrew11 [14]2 years ago
6 0

Answer:

40k 35cents

Step-by-step explanation:

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Ronald owns a fish tank on thr shape of a rectangular box. The tank is 18 inches high, 14 inches deep, and 30 inches long. Ronal
mash [69]

Answer: 2,004\ in^2

Step-by-step explanation:

The formula for calculate the area of a rectangle is:

A=lw

Where "l" is the lenght and "w" is the width.

Based on the information given in the exercise, you can draw the fish tank attached, where the dimensions are: 18 inches high (h=18\ in), 14 inches deep (w=14\ in), and 30 inches long (l=30\ in).  

The area that was convered will be the sum of the areas of all the faces, but the top of the tank.

Therefore, the area that was convered is the following:

A=(30\ in)(18\ in)+(30\ in)(18\ in)+(18\ in)(14\ in)+(18\ in)(14\ in)+(30\ in)(14\ in)\\\\A=2(30\ in)(18\ in)+2(18\ in)(14\ in)+(30\ in)(14\ in)\\\\A=2,004\ in^2

5 0
2 years ago
According to an informal poll in Glenview 1/3
Talja [164]

Answer:

Percent form: 41.65%

Fraction form: \frac{833}{2000}

Step-by-step explanation:

33% of men support John Smith.

67% of women support John Smith.

Lets say, for instance, that there are 20 polled individuals -- 10 women and 10 men.

However, since 1.5 times as many men voted as women, we have to apply our poll to 15 men and 5 women.

33% of the 15 men makes 5 men who voted for Smith and 10 who did not.

67% of the 5 women makes 3.33 women who voted for Smith and 1.67 who did not.

Add these numbers together.

8.33 total voters were cast for John Smith, while 11.67 were not.

Now, divide 8.33 by 20 and multiply by 100 to obtain a percentage.

\frac{8.33}{20} \\.4165\\41.65

41.65% of voters voted for John Smith according to the results of the poll.

7 0
2 years ago
The perimeter of a triangle is 30 inches. After a dilation, the perimeter is 6 inches. What is the scale factor of the perimeter
Black_prince [1.1K]
1/5 is the answer brainiest plzzz  i hope it helps
5 0
2 years ago
Josh wants to determine the number of loaves of bread he can bake using the 13 and one-third cups of flour he has. If each loaf
Ganezh [65]

Answer:

Approximately 4 loaves of bread.

Step-by-step explanation:

Let us get out the total amount of flour that Josh has first of all. This is 13\frac{1}{3} cups of flour.

Each lof requires 3\frac{4}{5} cups of flour. This means that to make a loaf, he will be taking out this quantity of flour from the whole lot.

To get the total number of loaves he can make with this quantity of flour, we will have to divide the total quantity of flour available by the quantity required to make a single loaf.

This will be 13\frac{1}{3} ÷3\frac{4}{5} = 3\frac{29}{57} . This is approximately 4 loaves of bread

6 0
2 years ago
Read 2 more answers
A sphere of radius 7 in. Is placed inside a rectangular prism with length 15 in., width 18 in., and height 20 in. What is the vo
iragen [17]

Answer:

3964 in³

Step-by-step explanation:

volume of sphere:  V = 4/3 πr³

v₁ = 4/3 x 3.14 x 7³ = 1436

volume of prism: v = Bh     B = 15 x 18 = 270    h = 20

v₂ = 270 x 20 = 5400

v₂ - v₁ = 5400 - 1436 = 3964 in³

5 0
2 years ago
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