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son4ous [18]
3 years ago
7

How many ways to make 1 dollar from pennies nickels, and dimes recurrence relation?

Mathematics
1 answer:
natta225 [31]3 years ago
3 0
100 pennies 20 nickels 10 dimes I’m only in fifth grade so I might not know this
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Zara has forgotten her 4-digit PIN code. She knows the first digit is a prime number and the 4 digits make a number divisible by
vredina [299]

Answer:

2,500 different sets

Step-by-step explanation:

According to the scenario, calculation of the given data are as follows,

Let 4-digit PIN code be WXYZ

As first digit is a prime number

So, W = 1, 2, 3, 5, 7

n(W) = 5

X and Y are number from 0 - 9

So, n(X) = 10 & n(Y) = 10

Z makes the whole number divisible by 2.

So, Z must even number

So, Z = 0,2,4,6,8 or n(Z) = 5

We can calculate the number of different sets by using following formula,

n(W) × n(X) × n(Y) × n(Z)

By putting the value, we get

5 × 10 × 10 × 5 = 2,500

6 0
2 years ago
What is the negative exponent of 1 / 49
jekas [21]
I think 1 / 7 x 7 is the correct answer
6 0
3 years ago
What is the mean of this data set? If necessy, round your answer to the nearest tenth. 12,16,22,23,34,44,46,47,48,64,67,73,83,88
Dmitry_Shevchenko [17]
The mean for the data set is 50.4

Rounded to the nearest 10th is 50
8 0
3 years ago
Two jets simultaneously started traveling in opposite directions from the same airport. Four hours later they were 3800 miles ap
Basile [38]

Step-by-step explanation:

the slower plane traveled x miles in 4 hours.

the faster plane traveled x + 4×80 = x + 320 miles in 4 hours.

so,

x + x + 320 = 3800 miles

2x =3480 miles

x =1740 miles (in 4 hours) .

that means the slower plane's speed was 435 mph.

and the faster plane's speed was 435 + 80 = 515 mph.

7 0
2 years ago
Determine the value of each of the following expressions. a.
nekit [7.7K]

a=2.86

b=48.24

c=31.29

d=84

4 0
3 years ago
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