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vfiekz [6]
3 years ago
14

HELP HELP HELP HELP HELP HELP!!!!!

Mathematics
1 answer:
sesenic [268]3 years ago
8 0

Answer:

..

Step-by-step explanation:

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A box holding pennies, nickels and dimes contains thirteen coins with a total value of 83 cents. How many coins of each type are
Art [367]

Answer:

The number of pennies,nickels and dimes are (p,n,d)=(3,4,6).

Further explanation:

Given:

A box holding pennies, nickels and dimes contains thirteen coins in a box.

Total value is 83 cents.

Calculation:

Consider p,n and d be the number of pennies, nickel and dimes.

Now, total is 13 coins so p+n+d=13

As we know that these following are US coin.

Penny=1 cent

Nickel=5 cents

Dime=10 cents

Step 1:

The value is already given as 83 cents that is 80+3 cents.

80 cents can be possible in many combinations as follows:

(N,D)=(0,8),(2,7),(4,6),(6,5),(8,4),(10,3),(12,2),(14,1),(16,0)

It is given that the total number of cents is 13 so we choose (4,6) as (n,d) .

So the value of nickel n=4

Dimes d=6

Step 2:

The value of p is calculated as follows:

Substitute 4 for n, 6 for d in equation p+n+d=13 as follows:

p+4+6=13

p+10=13

p=13-10

p=3

Thus, the number of pennies,nickels and dimes are (p,n,d)=(3,4,6).

3 0
3 years ago
3/30 = n/50<br><br> n = (Blank)<br><br> Find n.
UNO [17]
<span>3/30 = n/50
</span><span>1/10 = n/50
10n = 50
n = 50/10
n=5</span>
3 0
3 years ago
Assume you have a credit card balance of $1,000. Your inter est rate on the credit card is 18 percent, and your minimum monthly
Vera_Pavlovna [14]
For 18% it will take 2 years to pay
For 3 years payment will be $36.50
For 14% it will take 1.9 years or 23 months
7 0
3 years ago
Arrange the given steps in the correct order to find A and B if A and B are two sets where A – B = {1, 5, 7, 8}, B – A = {2, 10}
GarryVolchara [31]

Answer:

A = {1, 3, 5, 6, 7, 8, 9}

B = {2, 3, 6, 9, 10}

Step-by-step explanation:

Here as given in the question:

A – B = {1, 5, 7, 8}   ⇒ {1, 5, 7, 8} is in A not in B.

B – A = {2, 10} ⇒  {2, 10} is in B  not in A

A ∩ B = {3, 6, 9}   ⇒ {3, 6, 9} is BOTH in A and B.

Step 1:

Set A can also be expressed as :  A = (A - B) ∪ (A ∩ B)

Set A can also be expressed as :  B = (B - A) ∪ (A ∩ B)

Step 2:

Substituting the values of (A - B) and (B - A)

A = {1, 5, 7, 8} ∪ {3, 6, 9}

B = {2, 10} ∪ {3, 6, 9}.

Step 3:

Finding the UNION of the above two sets, we get:

A = {1, 3, 5, 6, 7, 8, 9}

B = {2, 3, 6, 9, 10}

5 0
3 years ago
Suppose that 14 children, who were learning to ride two-wheel bikes, were surveyed to determine how long they had to use trainin
Svetradugi [14.3K]

Answer:

CI = 3.931 < μ < 8.069

Step-by-step explanation:

Hello !

7 0
3 years ago
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