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Marizza181 [45]
3 years ago
7

Dennis has 80 nickels and dimes that equal up to $6.60 how many of each coin did he have

Mathematics
1 answer:
Tasya [4]3 years ago
4 0

Answer:

im really confused soryy that i cant help

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Which term of the AP 21, 18, 15 ...... is -81 ?​
amid [387]

Given AP is 21 ,18,15,...

First term = 21

Common difference = 18-21 = -3

Let an = -81

We know that

an = a+(n-1)d

⇛21+(n-1)(-3) = -81

⇛ 21-3n+3 = -81

⇛24-3n = -81

⇛ 24+81 = 3n

⇛ 105= 3n

⇛ n = 105/3

⇛ n = 35

35th term of the AP is -81.

<u>also</u><u> read</u><u> similar</u><u> questions</u><u>:</u> Which term of a AP 5 , 13 , 21 ,... is 181?

brainly.com/question/2406241?referrer

Which term of the AP:3, 8, 13, 18,...,is 78?

brainly.com/question/15380012?referrer

3 0
2 years ago
Maria needs to reach a window that is eight feet above the ground. When she placed a ladder so that it reached the bottom of the
mr_godi [17]

Answer:

10 feet

Step-by-step explanation:

Given that the distance to be reached is 8 feet above ground and she she placed a ladder so that it reached the bottom of the window, the base of the ladder was 6 feet from the house, the length of the ladder considered with the other lengths forms a right angled triangle.

The length of the ladder represents the hypotenuse side hence using pythagoras theorem

F^2 = 8^2 + 6^2

where F is the length of the ladder in feet

F^2 = 64 + 36

= 100

find the root of both sides

F = 10 feet

The ladder is 10 feet long

5 0
3 years ago
consider the formula F=NM/P, where F represents the fertility of the soil. N represents the amount of nutrients in the soil. M r
Ahat [919]

The options are missing, so i have attached it.

Answer:

Measurement unit for F = (Nutrients • Moisture)/Pollutants.

Option C is correct

Step-by-step explanation:

From the question, we are given the formula; F = NM/P

where;

N is the amount of nutrients in the soil

M is the amount of moisture in the soil.

P is the amount of pollutants in the soil

From the definition of the terms above, the units of the can be expressed as;

N = nutrients

M = moisture

P = pollutants

Thus, the measurement unit for fertility is;

F = NM/P = (Nutrients • Moisture)/Pollutants

6 0
3 years ago
Will give Brainliest. This is a question on Methods for Solving Systems of Equations in Algebra 1.
Nat2105 [25]

Answer:

If there are no variables left, then i guess u just have to write the rest down(constant, coefficient, etc...)

5 0
3 years ago
Read 2 more answers
Need help with this math​
polet [3.4K]

Answer:

N = Q/3  -  V

Step-by-step explanation:

Q = 2N + 3V solve for N

Subtract 3V from both sides

Q - 3V = 3N

Divide both sides by 3

(Q - 3V)/3 = N

Q/3 - V = N

or

N = Q/3  -  V

3 0
3 years ago
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