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fenix001 [56]
3 years ago
13

A bag contains 22 coins consisting of quarters and nickels. The total value of the coins is $3.90. How many nickels are in the b

ag? *
Mathematics
1 answer:
bezimeni [28]3 years ago
8 0

Answer:

8 Nickels

Step-by-step explanation:

Since a Nickel is worth 5 cents ($0.05)

And a Quarter is worth 25 ($0.25)

and theres 22 coins

8 of those coins would be nickels which would mean we add 8 nickels up

8 x 0.05 = 0.4

then we add the quarters up

14 x 0.25 = 3.5

3.5 + 0.4 = $3.90

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C

Step-by-step explanation:

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3 years ago
Evaluate Ic2 + b2l, given a = 5, b = -3, and c= -2.
LenKa [72]

Answer:

Ic² + b²l = 13 units.

Step-by-step explanation:

We have to evaluate the expression Ic² + b²l with unknowns b and c and having the values of b and c respectively - 3 and - 2.

Now, Ic² + b²l

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= I4 + 9l  

= I13l

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5 0
3 years ago
The radius of the cone is 5 in and y = 13 in. What is the volume of the cone in terms of π?
olga nikolaevna [1]

Answer:

The volume of the cone is;

100 π inches^3

Step-by-step explanation:

To calculate the volume, we need the height

We can get the height from the slant height and the radius

Mathematically, we use Pythagoras’ theorem for this as the slant height, the radius and the height forms a right-angled triangle

The right-angled triangle has the slant height as its hypotenuse

By the theorem, the square of the hypotenuse equals the sum of the squares of the two other sides

Let the height be h

Thus;

12^2 = 5^2 + h^2

169= 25 + h^2

h^2 = 169-25

h^2 = 144

h = √1144 inches = 12 inches

The volume of the cone is;

1/3 * π * r^2 * h

= 1/3 * π * 5^2 * 12

= 100 π inches^3

4 0
3 years ago
Kurt earns $6 a week for doing chores. How many weeks will it take him to earn $50 if he has already earned $10 ? Explain how yo
olga2289 [7]

50-10 = 40. 40 divided by 6 = around 6/7. So about 6/7 weeks

5 0
3 years ago
Superman needs to save Lois from the clutches of Lex Luthor. After flying for 5 seconds, he is 1845 meters from her. Then at 15
Lapatulllka [165]

Answer:

do not know what the question is but the equation for this would be

y=2100-51x

7 0
3 years ago
Read 2 more answers
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