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CaHeK987 [17]
3 years ago
8

There are 20 nickels in a dollar

Mathematics
1 answer:
Natasha_Volkova [10]3 years ago
3 0

answer: n = 20

Step-by-step explanation:To write an equation, define variables. n will be the number of nickels. d will be the number of dollars. We want to know the number of nickels so the equation will be equal to n. Since there are 20 nickels in each dollar, 1 dollar will have 20 nickels. 2 dollars will have 40 nickels or 2*20. For d dollars, it will be 20d.n = 20d

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Diano4ka-milaya [45]

Answer:

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Step-by-step explanation:

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2 years ago
Eight randomly selected customers at a local grocery store spent the following amounts on groceries in a single visit: $216, $18
chubhunter [2.5K]

Answer:

a) 910

b) 828100

c) 144320

Step-by-step explanation:

a. ∑y

This is the sum of all values of y. So

\sum y = 216 + 184 + 35 + 92 + 142 + 175 + 9 + 57 = 910

b. (∑y)^2

This is the square of the sum, so the square of 910, that we found in the previous item.

910² = 828100

c. ∑y^2

This is the sum of the squares of each amount spent. So

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8 0
3 years ago
Please help with this and explain the answer.
zysi [14]

Answer:

48.06

Step-by-step explanation:

b^2+c^2=A^2

45+16=42.06

add the extra 6

3 0
2 years ago
What is the measure, in degrees, of the missing exterior angle?
lozanna [386]
120

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6 0
3 years ago
The entrance fee to the national park is $15. The campsite fee is $25 per night.
lisabon 2012 [21]

Answer:

Step-by-step explanation:

a.) y = 25x + 15

b.) y is the total cost x is the amount of nights stayed 15 is the entrance fee and 25 is the cost per night

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ii.) slope (or m) is 25 y-intercept is 15

c.) plug in 3 for x

y = 25(3) + 15

y = 75 + 15

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hope this helps <3

8 0
2 years ago
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