How many nickles and dimes are $5.20 if there are six times more nickles than dimes?

Answers

Answer 1
Answer: In looking for the number of nickel and dimes we need to establish first equations:
n = $0.05
d = $0.1

0.05n + 0.1d = 5.20
0.05n = 6 (0.1d) ; n = 0.083d

Then we will solve it by substitution:
0.05(0.083d) + 0.1d = 5.20
0.42d + 0.1d = 5.20
0.52d = 5.20
d = 10

n = 0.083(10)
n = 0.83

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The length of a rectangle is twice the width. The perimeter of the rectangle is 24 feet. What is the length of the rectangle? Let x = the width of the rectangle. Which let statement would you use for the length?

Answers

A) L = 2*W
B) 2*L + 2*W = 24
Substituting A into B
2*2*W + 2*W = 24
6W = 24
W=4
L=8


Find an equation of a line that comes close to the points listed in the table.X|y
6|8
10|13
12|15
16|18
18|21

Answers

y=x+2\nx=6\to y=6+2=8\nx=10\to y=10+2=12\nx=12\to y=12+2=14\nx=16\to y=16+2=18\nx=18\to y=18+2=20\n-----------------------\ny=x+3\nx=6\to y=6+3=9\nx=10\to y=10+3=13\nx=12\to y=12+3=15\nx=16\to y=16+3=19\nx=18\to y=18+3=21\n-----------------------\nAnswer:y=x+1.5

0.125 is how many cups

Answers

Well, you didnt exactly give me enough information to do the problem, but here it goes;
0.125 is a decimal, and as a fraction it converts to 1/8. Therefore, depending on the original unit, it could be 1/8 of a cup.

The second term of an arithmetic sequence is -39. The rule a, = a -1 + 12 can be used to find the next term of thesequence. What is the explicit rule for the arithmetic sequence?
a, = -51+12(n-1)
O a = -39+12(n-1)
O a, = 12+(-39)(n-1)
O a = 12+(-51)(n-1)

Answers

Answer:

A. an = -51+12(n-1)

Step-by-step explanation:

edge quiz

The solution is, the explicit rule for the arithmetic sequence is

a n = -51 + ( n - 1 ) · 12 .

What is Arithmetic progression?

An arithmetic progression or arithmetic sequence is a sequence of numbers such that the difference between the consecutive terms is constant.

The nth term of AP : a_n = a + (n – 1) × d

here, we have,

given that,

a 2 = -39

a 2 = a 1 + 12

- 39 = a 1 + 12

a 1 = - 39 - 12

a 1 = - 51 ( first term )

The common difference is : d = 12

The explicit rule for the arithmetic sequence:

a n = a1 + ( n - 1 ) d

a n = -51 + ( n - 1 ) · 12

Hence, The solution is, the explicit rule for the arithmetic sequence is

a n = -51 + ( n - 1 ) · 12 .

To lean more on Arithmetic progression click:

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Joe says that the product of 4-digit number and a 1-digit number is always a 4-digit number. Does Jose's statement make sense?

Answers

We cannot say that the product of 4-digit number and a 1-digit number is always a 4-digit number.

Joe's statement does not make sense.

Given :

Joe says that the product of 4-digit number and a 1-digit number is always a 4-digit number.

Lets take an example and analyze Joe's statement

Let the 4 - digit number is 2131

and a one digit number is 5

Lets multiply it

2131 \cdot 5=10665

We can see the the result is a 5-digit number

We cannot say that the product of 4-digit number and a 1-digit number is always a 4-digit number.

Joe's statement does not make sense.

Learn more :  brainly.com/question/11262281

The correct answer is:

No.

Explanation:

The number of digits in the product depends completely on what digits are being multiplied.  For instance, multiplying 2222 by 4 would result in a 4-digit number, 8888.  However, if you multiply by 5, since 5(2) = 10, this will change the number of digits in the answer.

Which of the following is the solution set of 18 - 3n + 2 = n + 20 - 4n?

Answers

Answer:

The solution set is the set of all real numbers.

Step-by-step explanation:

Solve: 18-3n+2=n+20-4n

Like terms are those terms which have same variable to the same power:

Combine like terms;

20-3n=20-3n

Subtract 20 from both sides we get;

20-3n-20=20-3n-20

Simplify:

-3n=-3n

Add 3n to both sides we get;

-3n+3n=-3n+3n

Simplify:

0=0 for all n

Thus, the given system is dependent.

Therefore, the solution set is set of all real numbers.

Answer:

ALL REALS

Step-by-step explanation:

hope this helps y'all